Matt Ritter – 海角精品黑料 News Washington's Top News Tue, 28 Sep 2021 18:50:37 +0000 en-US hourly 1 /wp-content/uploads/2021/05/WtopNewsLogo_500x500-150x150.png Matt Ritter – 海角精品黑料 News 32 32 Will there be snow on Christmas? A look at the DC area’s forecast /weather-news/2019/12/will-there-be-snow-on-christmas-a-look-at-the-dc-areas-forecast/ /weather-news/2019/12/will-there-be-snow-on-christmas-a-look-at-the-dc-areas-forecast/#respond Mon, 23 Dec 2019 23:15:22 +0000 /?p=20564155&preview=true&preview_id=20564155 By this point, it has been pretty well-advertised that there is no chance of a white Christmas in the D.C. area this year.

The commonly accepted definition of a white Christmas is having more than an inch of snow on the ground on Dec. 25. It does not necessarily have to be snowing on the date; but if it is, it has to accumulate over an inch.

Well, not only is there no chance of that because it is not going to snow anytime before and on Christmas Day, it’s going to simply be too mild 鈥 and dry.

Historically, the odds of having a white Christmas in the D.C. area are not very high anyway.

According to the National Climatic Data Center, the area has around a 10-15% probability in any year, based on 1981-2010 climatology.

The odds of it actually snowing on Christmas Day are even worse: Since 1884 (the start of records for D.C.), there have been only nine times when there’s been measurable snow on Christmas Day, according to the National Weather Service.

The last time there was a white Christmas for D.C. was 2009, when there was still snow on the ground 鈥 7 inches 鈥 that was left over from the storm on Dec. 18-19, remembered locally as “Snowpocalypse.” The National Weather Service pointed out that all of that Christmas snow melted the next morning.

The current slow-moving weather pattern will keep most of this week uneventful, so at least weather won’t interfere with last-minute shoppers, or even with local or regional travel.

Just about all of the active weather, whether it be rain or wintry mix, will be in the Rockies to the West Coast, even including some of the Southwest.

For the D.C. area, Storm Team 4 is forecasting mainly clear skies for Christmas Eve and temperatures near 40 at midnight, followed by mostly sunny skies during the day on Christmas.

Highs will be well above average in the low to mid-50s.

The next chance for any precipitation at all won’t be until over the weekend, when there could be some showers.

And what about New Year’s? Well, it could get wet, with soaking rain in the forecast.

Source

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Long-standing record temperatures challenged this weekend /weather-news/2019/07/long-standing-record-temperatures-challenged-this-weekend/ /weather-news/2019/07/long-standing-record-temperatures-challenged-this-weekend/#respond Thu, 18 Jul 2019 19:12:54 +0000 /?p=19947153&preview=true&preview_id=19947153 As the widely reported dangerous heat starts building and heading to the D.C. area for the weekend 鈥 making the existing heat wave even worse 鈥 many may be wondering if the region could set some records.

It’s possible, and some of the records go way back.

There are two types of records in particular that could be tied or broken this weekend: the traditionally familiar record high 鈥 that is the “highest temperature on record for the date” 鈥 but also the less familiar record “high low” 鈥 that is the “warmest it’s ever been for a low temperature for the date.”

Below is a table of the record temperatures for Reagan National, Dulles International and BWI Marshall airports. Note that Washington’s highest high temperature records predate the airport. All of Baltimore’s records predate the airport.

Click to enlarge.

The warm low records are going to be the most in danger of being tied or broken. They’re on the table because not only is it going to be exceptionally hot during the daytime hours, but the exceptionally high humidity levels will keep the air from cooling down as much as it otherwise would. Water vapor holds onto heat much more efficiently than dry air does. (That’s why you can bake in the desert in the daytime but be too cold at night.)

As medical professionals point out, heat-related stress and therefore health problems are made worse at night, when it stays that warm because the body can’t rest or cool down.

A strong cold front will pass through the area Monday with showers and storms, possibly keeping us below 90 degrees for the day, breaking the heat wave then. But Tuesday will definitely be below 90 behind the front.

Next Wednesday looks much more seasonable for high temperatures and with more tolerable humidity levels.

The current heat wave (Washington-Reagan National data) started July 11.

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Severe weather threat is diminished, but storms still loom in DC area /local/2019/06/thursday-storms-will-usher-in-more-comfortable-weekend-weather/ /local/2019/06/thursday-storms-will-usher-in-more-comfortable-weekend-weather/#respond Thu, 20 Jun 2019 20:30:22 +0000 /?p=19833040 Even though the weekend is expected to bring a cooler, less humid respite from days of heat and humidity, heavy showers and a strong thunderstorm or two could move through the area up until Thursday night.


Current watches and warnings

SEVERE THUNDERSTORM WATCH

Virginia: Spotsylvania County (until 10 p.m.)


There is still a threat for showers and storms but they would be more isolated and scattered and nature, Storm Team4 meteorologist Somara Theodore said. And for areas that do see storms, be aware because it could be severe, she said.

The storms could bring torrential rain, damaging winds gusting up to 60 mph and hail for some parts of the area. The worst of the storms will pass through the region through the afternoon into the evening.



The daytime heating of this Gulf Coast-like humidity has created an unstable atmosphere but the threat for widespread, damaging thunderstorms has been tempered somewhat by an unfavorable wind direction and interference from storms in the Southeast U.S.

Most of the latest computer guidance indicates the greatest threat for these storms in terms of areal coverage will be closer to central Virginia and southern Maryland.

As the front slides through the area Thursday evening and night, the storms will weaken and dissipate.

The humidity will then start dropping gradually. It won鈥檛 be as muggy Thursday night, and a strong northwest breeze on Friday will transport in even drier air. Humidity will continue dropping, with the sun going in and out of fair weather clouds.

The next chance for storms won鈥檛 be until Sunday as more humid air tries to return with a warm front, but the areas most likely to see those would be toward the mountains.

A better chance for the rest of the area exists on Monday.

This year鈥檚 summer solstice in our hemisphere occurs at 11:54 a.m. Friday Eastern Daylight Time. Saturday will be the first full day of summer.

Forecast

After several days of heat and humidity, Friday brings some relief and a nice change of pace. And the weekend is looking nice and sunny, as well.

Thursday night: Lingering showers and storms. Then mostly cloudy. Low in the upper 60s.

Friday: Decreasing clouds then mostly sunny. Highs in the low 80 degrees.

Saturday: Mostly sunny. Highs in the low 80 degrees.

Sunday: Mostly sunny, with a 20% chance of storms to the west. Highs in the low to mid 80s.

Current conditions

Source

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Friday storms could bring wind, heavy rain; flash flood watch issued /weather-news/2019/04/friday-storms-could-bring-heavy-rain-winds-flash-flood-watch-issued/ /weather-news/2019/04/friday-storms-could-bring-heavy-rain-winds-flash-flood-watch-issued/#respond Thu, 18 Apr 2019 20:41:01 +0000 /?p=19584472 A major storm system forming in the South will bring severe weather to the D.C. region as the National Weather Service issued a flash flood watch for Friday afternoon, lasting through late Friday night.

Clusters of scattered thunderstorms will arrive in the early to mid-afternoon Friday, while a line of storms forms to the west in the mountains near the cold front.

The vigorous storm system forming in the Deep South will be lifting out Thursday night, heading toward the D.C. area, and it will be impacting the region Good Friday afternoon.

The primary threat in the afternoon and evening will be strong winds and some hail, but the heavy rainfall threat could last all the way into early Saturday morning. Comparatively speaking, the worst of the weather will be south of the area, but it will be close enough to impact.



What to expect

A warm front will be well to the north of the D.C. area on Friday morning, and very humid air from the Gulf of Mexico will be transported into the area by a deep southerly wind flow. Meanwhile, temperatures will be almost as warm as Thursday, limited only by cloud cover.

Counties included in the flash flood watch, which will go into effect Friday afternoon, lasting into Saturday morning. (Courtesy National Weather Service, NOAA)
Counties included in the flash flood watch, which will go into effect Friday afternoon, lasting into Saturday morning. (Courtesy National Weather Service, NOAA)
The surface map for Friday afternoon shows the scenario of a deep layer of warm and humid air ahead of the strong front and strong low pressure system which will be lifting up through the mountains. The contrast with the cool and dry air on the other side of the front is contributing to the severe weather threat. (Courtesy Weather Prediction Center, NOAA)
The surface map for Friday afternoon shows the scenario of a deep layer of warm and humid air ahead of the strong front and strong low pressure system which will be lifting up through the mountains. The contrast with the cool and dry air on the other side of the front is contributing to the severe weather threat. (Courtesy Weather Prediction Center, NOAA)
The Storm Prediction Center has the D.C. area outlooked for a "Slight Risk" of severe thunderstorms on Friday, with the "Enhanced Risk" area too close for comfort. This image was produced Thursday afternoon and will change with time. An explanation of these categories can be <a href="https://www.spc.noaa.gov/misc/about.html">found here</a>. (Courtesy Storm Prediction Center/NOAA)
The Storm Prediction Center has the D.C. area outlooked for a “Slight Risk” of severe thunderstorms on Friday, with the “Enhanced Risk” area too close for comfort. This image was produced Thursday afternoon and will change with time. An explanation of these categories can be . (Courtesy Storm Prediction Center/NOAA)
The Weather Company's RPM computer model simulated the future radar in these images. They are "snapshots" in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company’s RPM computer model simulated the future radar in these images. They are “snapshots” in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company's RPM computer model simulated the future radar in these images. They are "snapshots" in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company’s RPM computer model simulated the future radar in these images. They are “snapshots” in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company's RPM computer model simulated the future radar in these images. They are "snapshots" in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company’s RPM computer model simulated the future radar in these images. They are “snapshots” in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company's RPM computer model simulated the future radar in these images. They are "snapshots" in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company’s RPM computer model simulated the future radar in these images. They are “snapshots” in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
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Counties included in the flash flood watch, which will go into effect Friday afternoon, lasting into Saturday morning. (Courtesy National Weather Service, NOAA)
The surface map for Friday afternoon shows the scenario of a deep layer of warm and humid air ahead of the strong front and strong low pressure system which will be lifting up through the mountains. The contrast with the cool and dry air on the other side of the front is contributing to the severe weather threat. (Courtesy Weather Prediction Center, NOAA)
The Storm Prediction Center has the D.C. area outlooked for a "Slight Risk" of severe thunderstorms on Friday, with the "Enhanced Risk" area too close for comfort. This image was produced Thursday afternoon and will change with time. An explanation of these categories can be <a href="https://www.spc.noaa.gov/misc/about.html">found here</a>. (Courtesy Storm Prediction Center/NOAA)
The Weather Company's RPM computer model simulated the future radar in these images. They are "snapshots" in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company's RPM computer model simulated the future radar in these images. They are "snapshots" in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company's RPM computer model simulated the future radar in these images. They are "snapshots" in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)
The Weather Company's RPM computer model simulated the future radar in these images. They are "snapshots" in time from early Friday afternoon through early Saturday morning, showing the scattered storms arriving first, followed by the solid line with heavy downpours moving through at night, necessitating the flash flood watch. (Courtesy The Weather Company)

With unseasonable warmth, unseasonably high humidity levels and a deep area of low pressure lifting up the Appalachian Mountains, bringing a strong cold front with it, all the ingredients will be in place for strong storms. It can be thought of as a high efficiency engine with a good fuel source; the highest “octane,” the most humidity and most unstable air, will be in southern Virginia into the Carolinas. But any extra sunshine and higher temperatures would increase the severe weather threat even more than is already thought.

Clusters of scattered thunderstorms will arrive in the early to mid-afternoon, while a line of storms forms to the west in the mountains near the cold front. The afternoon scattered storms will have the damaging winds and hail threat with brief heavy downpours.

The line moving in with the cold front at night will have a fairly solid line of thunderstorms with heavy downpours slowly moving west to east, so the repetitive storms will have the potential to really add up the rain totals.

And that鈥檚 when there could be some flooding of roads and small streams and creeks.

The front and the line of storms will have moved to the east by midday Saturday, and less humid and cooler air will continue moving in. The old storm center, the area of low pressure, will slowly drift through the area over the weekend.

Though that means the severe weather threat will be over, the atmosphere will be unstable enough for spotty showers on Saturday and first thing Easter Sunday morning. Sunrise services may not see much sunrise at all, but toward the end of the day, the sun will likely be breaking through clearing clouds.


Forecast

Thursday night:聽Mostly clear. Warm and pleasant. Temperatures falling into the low 70s to upper 60s after sunset.

贵谤颈诲补测:听Weather Alert Day. Mostly cloudy. A few showers in the morning, then thunderstorms arriving in the afternoon and evening. Some will be strong to severe, and rain may be heavy. Highs: low to mid 70s.

厂补迟耻谤诲补测:听Cloudy, breezy and cooler. A few scattered showers. Highs: upper 60s to low 70s.

厂耻苍诲补测:听Partly sunny. A chance of a shower, mainly before noon. Highs: mid to upper 60s.


Current conditions

Source

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1st snowstorm in months likely this weekend; impacts moderate /weather-news/2019/01/weekend-snowstorm-likely-but-amounts-uncertain/ /weather-news/2019/01/weekend-snowstorm-likely-but-amounts-uncertain/#respond Fri, 11 Jan 2019 21:26:54 +0000 ?p=19169644&preview=true&preview_id=19169644 WASHINGTON 鈥 The first snowstorm the D.C. area has seen since November looks ready to begin Saturday in the early afternoon.

Winter storm warnings have been posted for parts of the area from 10 a.m. Saturday until 1 p.m. Sunday in Fauquier, Prince William and Stafford counties in Virginia and Calvert, Charles and St. Mary’s counties in Maryland.



The rest of the D.C. area is under a Winter Weather Advisory, from 4 p.m. Saturday through 7 a.m. Sunday.

Potential accumulations are looking like 4 to 7 inches for most of the D.C. area, Storm Team4 Meteorologist聽Doug Kammerer said Friday afternoon.

“It is going to be a little bit of a difference depending on where you live,” Kammerer said. “Some areas will get more than others. But the big thing here is, everybody gets snow.”

A swath of moisture will be picked up from the Gulf of Mexico by the storm, transporting it toward the area and interacting with cold, initially dry air already in place. The storm’s center will head through the Southeast states, eventually moving to the coast of the Carolinas and strengthening as it heads out to sea.

It does not look like it is going to be a classic Nor鈥檈aster heading up the eastern seaboard. This will put the area on the northern fringe of the precipitation shield, where it will stay cold enough for all snow. The ground will be cold enough for most of the snow that falls to stick, though likely not right away.

The National Weather Service has parts of the Shenandoah Valley, down through central Virginia, the Northern Neck and St. Mary’s County in a winter storm watch, which will go into effect at noon and last until noon Sunday. (Courtesy National Weather Service)

As of now, it looks like light snow should arrive around early afternoon Saturday, though light accumulations probably won鈥檛 start until closer to evening. But the accumulation will continue overnight into Sunday. The height of the storm in terms of when most accumulation will occur and add up the fastest looks like it will be Sunday mid-morning into Sunday early afternoon.

Snow intensity will rapidly wind down Sunday evening, with only snow showers or flurries lingering into Monday morning (and plenty of icy spots). There will be some bands of heavier snowfall close to the wintry mix/rain line somewhere in central Virginia. A secondary wave of snow could occur, giving the Interstate 64 corridor ultimately higher accumulations.

Above is the official forecast from the Baltimore-Washington office of the National Weather Service. Within central Virginia, there is potential to get more than the rest of the 海角精品黑料 listening area, depending on the storm lingering there into Sunday evening. (Courtesy National Weather Service)

The dry air may keep most of northern Maryland up to the Pennsylvania line on the low end of the potential range.

Again, areas south of Interstate 66, especially closer to I-64, should be aware of the potential for a little more than that range. Considering how much of the storm will be occurring at night, the fact that it鈥檚 occurring during the weekend and that accumulations will be drawn out over a period of time, this would qualify as a low-to-moderate-impact storm.

While potentially not a history-making storm, it will be the most snow the region has seen since Nov. 15! That mid-November storm officially brought 1.4 inches to Reagan National Airport, 3 inches to Dulles International Airport and 1.7 inches to BWI Marshall Airport 鈥 all records for the date.

Preparations

In Maryland, the State Highway Administration is pretreating roads and getting equipment ready. They said in a statement Friday that they plan to have brining completed by Saturday and staging trucks and plows beginning Saturday night.

You can track the Maryland snow preparations on the app.

The highway agency said that if more than 6 inches of snow fall, they鈥檒l make certain park-and-rides available for truckers to ride it out. They鈥檝e got a list of locations .

The Virginia Department of Transportation has been pretreating roads since Thursday, especially in the Fredericksburg area.

The forecast

Friday: Sunny, cold and breezy. Highs in the mid- to upper 30s; wind chills in the teens and 20s.

Saturday: Cloudy, with snow moving in during the afternoon hours and continuing overnight. Highs in the low- to mid-30s.

Sunday: Light to moderate snow in the morning, with 3 to 5 inches of accumulation. Slightly higher amounts in central Virginia are possible with more snow Sunday afternoon and evening in central Virginia.

Monday: Morning flurries possible. Some sun in the afternoon. Highs in the low to mid-30s.

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Meteorologist’s view: Flood warnings for bigger rivers in DC area /weather-news/2018/06/flood-warnings-in-effect-for-bigger-rivers-in-dc-area/ /weather-news/2018/06/flood-warnings-in-effect-for-bigger-rivers-in-dc-area/#respond Sun, 03 Jun 2018 18:45:40 +0000 /?p=18379897 WASHINGTON 鈥 After almost constant rain over the weekend, flooding of the bigger rivers in the D.C. area has become more likely Sunday afternoon, as the waters from streams, creeks, and runoff from roadway fills the rivers.

River flood warnings had already been posted for the Rappahannock River in Remington as of Sunday afternoon, in effect until Monday.

The Potomac River at Harpers Ferry, Shepherdstown, Point of Rocks and Edwards Ferry has river flood warnings in effect until Tuesday or until further notice.

The Shenandoah River also has locations under effect until Tuesday evening.

A river flood watch was in effect for the rest of the length of the freshwater Potomac until further notice.

Most computer models from the Middle Atlantic River Forecast Center in State College, Pennsylvania, have the rivers going above flood stages Sunday evening or overnight, cresting at minor to moderate flood stages late Monday or early Tuesday.

Some of the freshwater Potomac locations may not drop below flood stage until Wednesday.

As is often the case, at Georgetown and points south, flooding levels will be affected by tides.

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Workweek weather blog: From a muggy Monday to a fall-like Friday /weather/2017/10/workweek-weather-blog-muggy-monday-fall-like-friday/ /weather/2017/10/workweek-weather-blog-muggy-monday-fall-like-friday/#respond Mon, 09 Oct 2017 04:57:43 +0000 /?p=16016441 The remnants of former Hurricane Nate will continue moving up the Appalachian Mountains and bring the area the first soaking rain we鈥檝e had in almost 25 days.

It will be a rainy Monday morning rush with the rain heavy at times in a few bands. Some pooling of water on the roadways may slow the commute, but other than that, the speed of the system and the antecedent dry conditions will prevent widespread flooding.

Many areas will pick up an inch of rainfall, especially west of Washington. Some spots near Interstate 81 may get a little more. But, again, the system will move right along to New England and then out to sea; and it may be soon enough that we鈥檒l even get to see some sun again Monday afternoon, which would spike temperatures right back up into the 80s and make it feel absolutely tropical, especially for this time of year.

The cold front which helped draw Nate inland and toward us in the first place will slowly pass through in the storm鈥檚 wake on Tuesday, dropping the humidity a bit by Wednesday. The temperature improvement will be more noticeable, but that will also be because the clouds will come right back in ahead of the next disturbance, which will also bring a chance for some more light rain on Wednesday into early Thursday. It will be much less than Nate鈥檚 remnant amounts, however.

Strong Canadian high pressure will then build in Thursday into Friday, displacing all the warm, humid weather. The workweek will end much more seasonable with much less humidity, finally feeling like fall again.

Daily weather highlights

Monday

  • Rainy and breezy for most of the morning
  • Breezy with scattered showers and some partial sunshine in the afternoon
  • Unseasonably warm and very humid

Tuesday

  • Diminishing breezes
  • Still warm, but a bit less humid
  • Mix of sun and fair weather clouds
  • A stray shower or two

Wednesday

  • Becoming cloudy again
  • Not as warm and turning less humid, despite a few showers
  • Potential to be even cooler with a steady light rain and drizzle

Thursday

  • Still a fair amount of cloudiness
  • Breezy with dropping humidity

Friday

  • More seasonable temperatures
  • Mix of clouds and sun
The remnants of former Hurricane Nate will bring some rain at the start of the week. (海角精品黑料/Storm Team 4)
The remnants of former Hurricane Nate will bring some rain at the start of the week. (海角精品黑料/Storm Team 4)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
The model is also showing the potential for some heavy amounts, especially in the mountains, where there could be some swaths of 1-2 inches of rainfall. But the higher likelihood is that most of the area is looking at 1/2 to 1 inch of rainfall. (The Weather Company)
The model is also showing the potential for some heavy amounts, especially in the mountains, where there could be some swathes of 1-2 inches of rainfall. But the higher likelihood is that most of the area is looking at 1/2 to 1 inch of rainfall. (The Weather Company)
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The remnants of former Hurricane Nate will bring some rain at the start of the week. (海角精品黑料/Storm Team 4)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
This series of images is from the hi-resolution RPM computer model, showing the remnants of Nate moving up from the south. The data depicted is future cloud cover and future radar. The center of low pressure will pass by to our north and west, through Ohio and western Pennsylvania. But the area will be close enough to get some bands of moderate to sometimes heavy rain, especially Monday morning. But by Monday afternoon the area will already start drying out on western winds sloping down the mountains. The times for the images are Monday 6 a.m., 8 a.m., 10 a.m. and skips ahead to 5 p.m. The evening rush hour won鈥檛 be as slow due to the weather. (The Weather Company)
The model is also showing the potential for some heavy amounts, especially in the mountains, where there could be some swaths of 1-2 inches of rainfall. But the higher likelihood is that most of the area is looking at 1/2 to 1 inch of rainfall. (The Weather Company)

Editor鈥檚 Note: The 海角精品黑料 Workweek Weather Blog is intended as an in-depth yet plain language summary of the business week鈥檚 weather potential in the D.C. area along with an explanation of the contingencies and uncertainties that exist at the time of publication. For the latest actual Storm Team 4 forecast, check out the link on the main聽.

Source

]]>
/weather/2017/10/workweek-weather-blog-muggy-monday-fall-like-friday/feed/ 0
Workweek weather: Summerlike temps return this week /weather/2017/10/workweek-weather-summerlike-temps/ /weather/2017/10/workweek-weather-summerlike-temps/#respond Mon, 02 Oct 2017 04:23:30 +0000 http://wtop.com/?p=15915656 It was certainly a fantastic weekend weather-wise courtesy of a big dome of high pressure building in from Canada.

This same dome of high pressure will continue to dominate the weather pattern for the entire week. This will mean some temperature swings, but it also means almost no chance of needed rain until almost Friday.

The dry air and clear skies at night will mean a few almost chilly mornings until the second half of the week, when the center of the high shifts slightly offshore and a change in wind direction will bring in more humidity.

Milder starts to the mornings, sunshine and southwesterly winds will lead to summerlike temperatures in the afternoons. A weak cold front will approach the area on Friday and basically stall out. But that may provide just enough lift to the atmosphere with the increased humidity to bring a few light showers.

It’s not back in a formal drought yet, but September finished 2.29 inches of rainfall below average for the month (Washington-Reagan National data) and the topsoil is getting pretty dry. The are could use an all-day soaking rainstorm for that reason alone. Further down the road when there would be plenty of fallen dry leaves, fire weather danger would only increase.

Also worthy of note, as of this article鈥檚 publication, there is no active tropical activity in the Atlantic Ocean.

Seasonable average highs this week are in the low to mid 70s and average lows are in the mid 50s.

Seasonable average highs this week are in the low to mid 70s, and average lows are in the mid 50s. (海角精品黑料/Storm Team 4)
Seasonable average highs this week are in the low to mid 70s, and average lows are in the mid 50s. (海角精品黑料/Storm Team 4)
Also worthy of note, as of this article鈥檚 publication, there is no active tropical activity in the Atlantic Ocean (National Hurricane Center/NOAA)
Also worthy of note, as of this article鈥檚 publication, there is no active tropical activity in the Atlantic Ocean (National Hurricane Center/NOAA)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
It looks like the dry spell will continue through most of the week. The GFS also shows no accumulated rainfall from now through Thursday, and only a potential for light amounts on Friday. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
It looks like the dry spell will continue through most of the week. The GFS also shows no accumulated rainfall from now through Thursday, and only a potential for light amounts on Friday. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
It looks like the dry spell will continue through most of the week. The GFS also shows no accumulated rainfall from now through Thursday, and only a potential for light amounts on Friday. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
It looks like the dry spell will continue through most of the week. The GFS also shows no accumulated rainfall from now through Thursday, and only a potential for light amounts on Friday. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
(1/14)
Seasonable average highs this week are in the low to mid 70s, and average lows are in the mid 50s. (海角精品黑料/Storm Team 4)
Also worthy of note, as of this article鈥檚 publication, there is no active tropical activity in the Atlantic Ocean (National Hurricane Center/NOAA)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
The GFS computer model shows the likely trend in temperatures this week, starting off chilly in the mornings early in the week, then gradually building back to milder morning lows and much warmer afternoon highs. The wide range in potential low temperatures Tuesday and Wednesday mornings will be due to variations in wind direction and humidity (drier areas will be cooler). There is the potential for Friday to be cooler than shown if the next cold front is faster and brings in the clouds sooner. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
It looks like the dry spell will continue through most of the week. The GFS also shows no accumulated rainfall from now through Thursday, and only a potential for light amounts on Friday. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)
It looks like the dry spell will continue through most of the week. The GFS also shows no accumulated rainfall from now through Thursday, and only a potential for light amounts on Friday. (Data: Weather Prediction Center/NOAA | Graphics: Storm Team 4)

Daily weather highlights

Monday

  • Clear and chilly start, especially in the rural areas
  • Abundant sunshine
  • Warming quickly after sunrise
  • Seasonable highs in the afternoon
  • Very low humidity and light winds out of the north

Tuesday

  • Mostly clear start except near the Chesapeake, a risk of low level cloudiness there
  • Chilly start but near the Bay not as chilly
  • Light winds, variable wind direction
  • Slightly more humid, still very comfortable

Wednesday

  • Cool start in the morning with patchy fog
  • Mostly sunny skies all day with warmer than average temperatures
  • Slightly more humid but again still very comfortable

Thursday

  • Mild start in the morning with patchy fog
  • Starting to really notice the increased humidity, feeling sticky
  • Temperatures well above average, feeling like summer
  • Sunshine with a mix of fair weather clouds

Friday

  • Muggy by October standards
  • Increasing clouds during the day, especially north of Washington
  • Chance of light showers or drizzle
  • Summerlike temperatures if clouds are delayed later, lots of uncertainty

Editor鈥檚 Note: The 海角精品黑料 Workweek Weather Blog is intended as an in-depth yet plain language summary of the business week鈥檚 weather potential in the D.C. area along with an explanation of the contingencies and uncertainties that exist at the time of publication. For the latest actual Storm Team 4 forecast, check out the link on the main聽.

Source

]]>
/weather/2017/10/workweek-weather-summerlike-temps/feed/ 0
Workweek weather: Finally feeling like fall by Friday /weather-news/2017/09/workweek-weather-finally-feeling-like-fall-friday/ /weather-news/2017/09/workweek-weather-finally-feeling-like-fall-friday/#respond Mon, 25 Sep 2017 01:39:57 +0000 http://wtop.com/?p=15807161 WASHINGTON 鈥 High pressure that has been keeping us dry and unseasonably warm (it got to above 90 degrees at Reagan National on Sunday) will remain in control of our weather, but some interactions with Hurricane Maria will bring some caveats.

For one thing, a change in wind direction will pump in even more humidity off the ocean and the bay. However, in that process, the extreme summer-like temperatures will be trimmed somewhat. In terms of comfort level, it may end up like 鈥渟ix of one, half dozen of the other鈥 if it cools down but gets more humid. At any rate, as Maria makes its closest approach to the mid-Atlantic coast, we will certainly see some clouds blowing off the top of the storm system. By midweek there could even be a few showers here at home, but we would just be on the westernmost fringe and aren鈥檛 expecting the showers to add up to much.

It looks like the dry spell will continue, even with a strong cold front on the way for the end of the week. This front will kick Maria out to sea for good. But it will also finally bring autumnal weather back to our area. During this stretch of warm weather in the East, it鈥檚 been very cool in the western U.S. and Canada, especially in the mountains. Some of that weather is simply spreading east.

The pattern is pretty well established and confidence is pretty high on the details. The only wild cards this week are how much cloud cover we get on Tuesday from Maria (that would have an effect on high temperatures) and if any showers will even produce measurable rainfall. Also, the timing of the cold front for Thursday has some variability: if it鈥檚 faster we鈥檒l end up cooler; if it鈥檚 slower we鈥檒l be warmer and unstable enough perhaps for a thunderstorm or two.

Check the National Hurricane Center’s latest official concerning Maria.

High pressure that has been keeping us dry and unseasonably warm (getting above 90 degrees at Reagan National on Sunday) will remain in control of our weather, but some interactions with Hurricane Maria will bring some caveats. (海角精品黑料/Storm Team 4)
High pressure that has been keeping us dry and unseasonably warm (getting above 90 degrees at Reagan National on Sunday) will remain in control of our weather, but some interactions with Hurricane Maria will bring some caveats. (海角精品黑料/Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid 60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
The rainfall forecast for the week from the Weather Prediction Center backs up the thinking that the dry spell here will continue. We haven鈥檛 had a soaking rain since Sep. 6, and that was only .55 inches at Reagan National. In this graphic, note the severe weather and excessive rainfall in the South as the cold front marches across the country. The heaviest rain from Maria will stay out to sea. This data is valid through Friday evening. (Weather Prediction Center, NOAA)
The rainfall forecast for the week from the Weather Prediction Center backs up the thinking that the dry spell here will continue. We haven鈥檛 had a soaking rain since Sep. 6, and that was only .55 inches at Reagan National. In this graphic, note the severe weather and excessive rainfall in the South as the cold front marches across the country. The heaviest rain from Maria will stay out to sea. This data is valid through Friday evening. (Weather Prediction Center, NOAA)
(1/12)
High pressure that has been keeping us dry and unseasonably warm (getting above 90 degrees at Reagan National on Sunday) will remain in control of our weather, but some interactions with Hurricane Maria will bring some caveats. (海角精品黑料/Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
The following images from the RPM computer model output show dew point temperatures climbing through Wednesday morning, as the onshore flow increases between high pressure over New England and the hurricane moving closer to the Carolinas coastline. Dew points in the mid-60s would be considered uncomfortable in the middle of summer, much less the beginning of fall. So getting close to 70 will be an almost tropical, muggy feel. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
Also from the RPM computer model, we can see the increasing cloud cover as we go through midweek. The model does produce a few light scattered showers and drizzle Tuesday afternoon and evening, right on the fringe of Maria鈥檚 circulation. The breeze may pick up a bit, too, Tuesday night into Wednesday. Heavier rains and winds are unlikely to make it farther northwest than the Outer Banks or Hampton Roads. Note the clouds and the easterly winds keeping temperatures from being as close to 90 as we were over the weekend. (Data: The Weather Company. Graphics: Storm Team 4)
The rainfall forecast for the week from the Weather Prediction Center backs up the thinking that the dry spell here will continue. We haven鈥檛 had a soaking rain since Sep. 6, and that was only .55 inches at Reagan National. In this graphic, note the severe weather and excessive rainfall in the South as the cold front marches across the country. The heaviest rain from Maria will stay out to sea. This data is valid through Friday evening. (Weather Prediction Center, NOAA)

Daily weather highlights

MONDAY:
鈥 A mild and sticky start, some patchy fog in the river valleys
鈥 Lots of sunshine with a hint of haze and high level clouds
鈥 Hot in the afternoon, especially for late September

TUESDAY:
鈥 Clouding over from the southeast to northwest
鈥 Easterly breezes make it more humid
鈥 Slight chance of some drizzle or light showers, mostly east of I-95 and toward the Chesapeake Bay
鈥 Still feeling like summer but not as hot

WEDNESDAY:
鈥 Breezy
鈥 Mostly cloudy
鈥 Warm and very muggy
鈥 A chance of light showers or drizzle, mostly east of I-95

THURSDAY:
鈥 Mix of clouds and sun
鈥 Breezy & warm
鈥 Still humid
鈥 Watching possibility of showers or a thunderstorm
鈥 Lowering humidity later in the day

FRIDAY:
鈥 Mix of clouds and sun
鈥 Breezy, more seasonable, and more comfortable

Editor鈥檚 Note: The 海角精品黑料 Workweek Weather Blog is intended as an in-depth yet plain language summary of the business week鈥檚 weather potential in the D.C. area along with an explanation of the contingencies and uncertainties that exist at the time of publication. For the latest actual Storm Team 4 forecast, check out the link on the main聽.

Source

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Workweek Weather: Some showers from Jose possible this week /weather/2017/09/workweek-weather-some-showers-from-jose-possible-this-week/ /weather/2017/09/workweek-weather-some-showers-from-jose-possible-this-week/#respond Mon, 18 Sep 2017 05:08:41 +0000 http://wtop.com/?p=15701336
Although the autumnal equinox is this week, it won’t feel like a change of seasons. (海角精品黑料/Storm Team 4)

WASHINGTON — The autumnal equinox is Sept. 22 at 4:02 p.m. It won鈥檛 feel like a change of seasons, however. The other season that it is right now of course is hurricane season, and the tropics are still busy.

Jose is being watched closely and it will be close enough to potentially bring some of us some showers.

Other than that threat, there will not be a lot happening this week while we are trapped in a strong ridge of high pressure in the eastern United States, while a deep trough of low pressure and cool weather sets up shop in the West.

Temperatures will be above average every day this week, but it will also be uncomfortably humid. Dewpoints will be in the low to mid 60s all week, which would make it feel as sticky as the mid-summer. Considering it鈥檚 mid-September, it might feel downright muggy to a lot of people.

With longer nights, temperatures have more time to cool to the dewpoints, and patchy fog may be a daily occurrence in the mornings.

Onshore flow between high pressure and the approach of Hurricane Jose will bring a chance for spotty showers on Monday at any time during the day, only isolated at most.

But Tuesday, even though landfall is not anticipated near the mid-Atlantic, the storm will be large enough for some of the outer bands to bring some showers to eastern parts of our area, mostly east of Interstate 95, in terms of highest likelihood.

The heavier rains would be along the beaches, and winds here would only be breezy at worst. As the center of Jose heads for New England, it will weaken, and the actual center of the storm may not make landfall at all.

A look at the 11 p.m. EDT Sunday official forecast graphic for Jose from the National Hurricane Center. (Courtesy NHC/NOAA)

For the latest information and official forecasts concerning Jose (as well as Lee and Maria), check the .

This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
  This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
The model only produces a few tenths of an inch of rainfall at most for us. So if the model ends up being indeed too far west with Jose, we would be looking at even less rainfall on Tuesday. (Data: The Weather Company. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
(1/12)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images is output from the RPM computer model, simulating the future satellite and radar/precipitation intensity. It shows the low level clouds, fog, and spotty showers on Monday as the strong easterly fetch is set up coming off the ocean. The hurricane can be then seen coming up from the south, parallel to the coast. Tuesday it shows some showers from the outer spiral bands affecting some of us. But the heaviest rainfall is along the immediate coast (and so are the windiest conditions, not shown). It should be noted that this model is much more west compared to the official hurricane forecast, especially when it鈥檚 close to New England. Many other weather models are farther east, bringing us even less of a chance for showers. So Tuesday鈥檚 weather here will be determined by last minute, mile-by-mile movements of Jose. (Data: The Weather Company, Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)
The other story of this week鈥檚 weather will be above average daily high temperatures (normal high is around 80 this week for Reagan National). The GFS computer model shows a warm week ahead, especially the second half of the week. Notice the cooler temperatures for the beaches, though, because of the influence of Jose. (Data: Environmental Modeling Center, NOAA. Graphics: Storm Team 4)

DAILY WEATHER HIGHLIGHTS

MONDAY:

Mild, muggy start with areas of fog

Staying mostly cloudy

Warm and humid

Isolated showers or drizzle

TUESDAY:

Mild, muggy start with areas of fog

Mostly cloudy, more peeks of sun likely along Blue Ridge

Showers possible along and east of I-95. Showers likely close to the Bay and southern Maryland

Warm and humid

WEDNESDAY and THURSDAY:

Warm and muggy start with patchy fog

Becoming partly to mostly sunny
Unseasonably very warm and humid

FRIDAY:

Warm and muggy start

Possibly not quite as warm, depending on cold front which may approach from the north

Editor鈥檚 Note: The 海角精品黑料 Workweek Weather Blog is intended as an in-depth yet plain language summary of the business week鈥檚 weather potential in the D.C. area along with an explanation of the contingencies and uncertainties that exist at the time of publication. For the latest actual Storm Team 4 forecast, check out the link on the main聽.

Source

]]>
/weather/2017/09/workweek-weather-some-showers-from-jose-possible-this-week/feed/ 0
Workweek Weather: Irma remnants to bring showers to DC /weather-news/2017/09/workweek-weather-irma-remnants-to-bring-showers-to-dc/ /weather-news/2017/09/workweek-weather-irma-remnants-to-bring-showers-to-dc/#respond Mon, 11 Sep 2017 04:33:13 +0000 http://wtop.com/?p=15592196 WASHINGTON — All eyes are understandably still on early this morning as it appears the center will continue to move right up the middle of the Florida peninsula, or at least hug the western shoreline.

The center staying mostly or completely over land will ensure a rapid weakening in terms of wind speeds, but torrential rains will continue to fall all the way up into the majority of Georgia and South Carolina.

The official track from the National Hurricane Center continues to have it turning a bit toward the West as it moves farther inland, followed by a very rapid weakening to a tropical storm and then tropical depression, followed by the storm鈥檚 remnants in the Tennessee and Ohio Valleys.

As this process happens, the eastern spiral bands will be heading our way, tapping Atlantic moisture, bringing us some substantial showers in their own right. However, we are not looking at very heavy rain or anything close to what one might expect from a tropical connection.

By Monday afternoon the storm should be reduced to tropical storm strength, weakening to a depression by Tuesday afternoon. For the latest National Hurricane Center information, visit the . (Courtesy NHC, NOAA)

High pressure which brought the cool, dry weather for several days here in the D.C. area and most of the Northeast will finally be heading out to sea, steering Irma inland. Lots of high level clouds from the edge of the system will be moving overhead on Monday and Monday night.

On Tuesday, we鈥檒l start to see some of the final spiral band remnants approaching. Showers could be here as soon as the afternoon; keep in mind these will be showers with an occasional thunderstorm but not a large area of steady, heavy rain. These showers will continue into Tuesday night and Wednesday.

National Weather Service radar from Melbourne, Florida, showing the center of Irma moving into Polk County. Flash Flood and Tornado Warnings up along the coast at the time. (海角精品黑料/Storm Team 4)

The forecast for the rest of the week is a little trickier. The exact center in the Ohio Valley will have to shear apart and drift east. Most longer range computer models bring those remnants through our area again starting on Thursday. But if the center of low pressure moves a little farther north toward the Great Lakes, then we would likely just see mostly cloudy, breezy, warm and humid conditions.

That possibility is just an outlier in a realm of reasonable solutions, and right now Storm Team 4 believes we will get more showers and some thunderstorms Thursday and Friday.

Hurricane Jose will head back out to sea in this time period 鈥 at least temporarily. Many long range computer models 鈥渓oop鈥 it back toward North America but not necessarily making landfall. If our area were to experience Jose in any way, it would take more than a week from now.

Daily weather highlights:
MONDAY:
鈥 Sunny and cool to start the day
鈥 Increasing high level 鈥渨hispy鈥 clouds, lowering and thickening later in the day
鈥 Temperatures again below average (low 80s this time of year)

TUESDAY:
鈥 Mostly cloudy
鈥 Breezy, more humid but still unseasonably cool
鈥 Showers and possible thunderstorms scattered around and arriving later in the day

WEDNESDAY:
鈥 Mostly cloudy
鈥 Breezy, much warmer and humid
鈥 Scattered showers and possible thunderstorms

THURSDAY and FRIDAY:
鈥 Cloudy, breezy, warm and humid
鈥 Showers and thunderstorms
鈥 Amount of showers and thunderstorm coverage depending on track of final remnants of Irma

This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
These amounts of rain could double if the final remnant low pressure center moves directly over us Thursday-Friday. (海角精品黑料/Storm Team 4)
These amounts of rain could double if the final remnant low pressure center moves directly over us Thursday-Friday. (海角精品黑料/Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
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This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)
These amounts of rain could double if the final remnant low pressure center moves directly over us Thursday-Friday. (海角精品黑料/Storm Team 4)
This series of images are from the RPM computer model initialized Sunday evening, lasting through Wednesday morning. It shows the potential future satellite and radar for our area. Clouds in gray overspread the area on Monday and the eastern spiral bands (light to dark green to yellow) of Irma鈥檚 remnants starting moving through on Tuesday, lasting through Wednesday. On the left side of the graphics on Wednesday will be the center of what鈥檚 left of the storm. It will drift eastward the rest of the week. (Data: The Weather Company, Graphics: Storm Team 4)

The output from the same run of the RPM shows rainfall amounts for our area over half an inch through Wednesday afternoon, the exact placement will depend on exactly where the spiral bands of showers move.

These amounts could double if the final remnant low pressure center moves directly over us Thursday-Friday.

IBM鈥檚 experimental new weather forecast model, Deep Thunder, shows what can be expected: torrential rain through northern Florida tapering to 鈥渞egular鈥 heavy rain as the center moves through Georgia into the Tennessee and Ohio Valleys, tapering to showers.

This graphic is a running total starting Sunday afternoon ending this Friday at midnight. The dark colors out to sea are from Jose, and note the turn west then north, paralleling the coast.

A look at the running total starting Sunday afternoon ending Friday at midnight. (Courtesy The Weather Company/IBM)

IBM is the parent company of The Weather Company.

Editor鈥檚 Note: The 海角精品黑料 Workweek Weather Blog is intended as an in-depth yet plain language summary of the business week鈥檚 weather potential in the D.C. area along with an explanation of the contingencies and uncertainties that exist at the time of publication. For the latest actual Storm Team 4 forecast, check out the link on the main聽.

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Workweek weather: Big temperature swings, plus more rain /weather-news/2017/09/big-temperature-swings-week-plus-rain/ /weather-news/2017/09/big-temperature-swings-week-plus-rain/#respond Mon, 04 Sep 2017 05:15:54 +0000 http://wtop.com/?p=15477711 WASHINGTON 鈥 The new workweek, shortened by Labor Day for many, will be a fairly active week weather-wise, as the D.C. area will have some ups and downs in temperature extremes and another dose of soaking rainfall.聽

Monday and Tuesday both come with reminders that Labor Day is only the unofficial end of summer, as temperatures will be back into the upper 80s, if not 90s, and the humidity will start climbing again on Tuesday. This will all be due to high pressure cutting to the south, putting the region in a broad southwesterly wind flow.

Temperatures will be maximized on Tuesday afternoon, just ahead of a strong cold front approaching from central Canada. Showers and storms will accompany the front, and temperatures will start dropping almost as soon as it starts raining.

The front looks like it will slow down and hang up just to the east Wednesday. That would put us not just on the cold side of the front, but northerly winds added to more soaking rain will keep Wednesday on the cool side, perhaps a lot like it was on Saturday when the remnants of Harvey were here.

It looks like most of the area will pick up close to an inch of rainfall in the Wednesday-Thursday time frame, adding to the surplus for the year. (It鈥檚 almost hard to believe the region was in a drought most of the year.) The Washington Nationals return to D.C. for a series with the Phillies starting Thursday. If the front slows down even more, the Thursday game may have some issues.

High pressure will finally push the front out to sea for the end of the week and provide us with cooler, dry northwesterly winds. Temperatures will be higher than the cool washout on Wednesday, but they will be below average. Average high temperatures this time of year for the area are in the low 80s.

海角精品黑料 and Storm Team 4 will be tracking the progress of Hurricane Irma in the days ahead. If the D.C. area were to eventually get any direct effects from the storm, it would not be until the beginning of next week. It is the same front moving through here midweek which will eventually have an effect on Irma鈥檚 path. Whether the front will cause enough of a turn to protect the eastern seaboard of the U.S. is the huge wild card at this point.

This week, temperatures will see some ups and downs, and there will be a dose of soaking rainfall. (海角精品黑料/Storm Team 4)
This week, temperatures will see some ups and downs, and there will be a dose of soaking rainfall. (海角精品黑料/Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
As mentioned, the rain this week could be soaking. Projections from the National Weather Service are in line with most computer models bringing our area an inch of rainfall if not a little more. This graphic is valid from 8 a.m. Monday through 8 a.m. Friday. Our amounts would occur Wednesday and Thursday. (Weather Prediction Center, NOAA)
As mentioned, the rain this week could be soaking. Projections from the National Weather Service are in line with most computer models bringing the D.C. area an inch of rainfall, if not a little more. This graphic is valid from 8 a.m. Monday through 8 a.m. Friday. The region’s amounts would occur Wednesday and Thursday. (Weather Prediction Center, NOAA)
(1/11)
This week, temperatures will see some ups and downs, and there will be a dose of soaking rainfall. (海角精品黑料/Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
This series of images is from the RPM computer model starting Tuesday, showing the progress of the cold front with rain arriving late and lasting through Wednesday, the extent of this particular run. (Data: The Weather Company. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
The American global model, the GFS, shows the potential for the big temperature changes this week thanks to the cold front and the rain. Monday and Tuesday are summery; Wednesday during the likely washout will not be summery. If the front ends up much slower, then the model is too warm for Thursday. Even though Friday will be a dry day, northwesterly winds will keep it feeling like fall. (Data: Weather Prediction Center, NOAA. Graphics: Storm Team 4)
As mentioned, the rain this week could be soaking. Projections from the National Weather Service are in line with most computer models bringing our area an inch of rainfall if not a little more. This graphic is valid from 8 a.m. Monday through 8 a.m. Friday. Our amounts would occur Wednesday and Thursday. (Weather Prediction Center, NOAA)

Daily weather highlights

MONDAY
鈥 Cool start
鈥 Borderline mostly-to-partly-sunny conditions
鈥 Warmer than over the weekend, feeling like summer again

TUESDAY
鈥 Becoming muggy during the day
鈥 Temperatures above average with some spots near 90, especially urban areas
鈥 Increasing clouds late in the day
鈥 Slight chance of showers or a thunderstorm
鈥 Steadier rain holding off until overnight

WEDNESDAY
鈥 Cloudy, damp and cooler
鈥 Temperatures well below average
鈥 Periods of rain, moderate at times
鈥 Chance of thunder
鈥 Temperatures could vary greatly across the area based on meandering front or lesser amounts of rain

THURSDAY
鈥 Likely still raining in the morning
鈥 Steady rain tapering to showers or ending completely close to evening
鈥 Temperatures still cool for this time of year

FRIDAY
鈥 Mix of clouds and sun; 鈥渃hangeable鈥 skies
鈥 Breezy and still cool for September, but milder than midweek

 

Editor’s Note: The 海角精品黑料 Workweek Weather Blog is intended as an in-depth yet plain language summary of the business week鈥檚 weather potential in the D.C. area along with an explanation of the contingencies and uncertainties that exist at the time of publication. For the latest actual Storm Team 4 forecast, check out the main .

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Labor Day plans? Here’s the weather forecast /weather-news/2017/09/labor-day-plans-heres-expect-weather/ /weather-news/2017/09/labor-day-plans-heres-expect-weather/#respond Fri, 01 Sep 2017 15:15:30 +0000 http://wtop.com/?p=15401951 WASHINGTON 鈥 The holiday extended weekend is upon us, starting out with an autumnal feel to Friday’s weather thanks(?) to the strong cold front which passed through Thursday evening.

Folks getting away to the mountains or the beaches still look like they will not have many travel problems due to the weather Friday, especially if they鈥檙e leaving before the evening. During the later evening hours into the overnight, some light rain from the remnants of 鈥淗arvey鈥 will start overspreading the area, possibly slowing things with wet roadways. The rain will last through Saturday and Saturday night/early Sunday morning. Then we will be back to summerlike weather for the rest of the weekend.

Saturday morning radar. (Courtesy: The Weather Company)
Saturday morning radar. This series of images is from the Weather Company鈥檚 RPM computer model, which is still projecting the same future radar scenario: light rain and drizzle overnight Friday into Saturday, some heavier rain/thunderstorms along the beaches, and all of us drying out for Sunday afternoon through Monday. Cloud cover is not shown. (Courtesy: The Weather Company)
Saturday afternoon radar. (Courtesy: The Weather Company)
Saturday afternoon radar. (Courtesy: The Weather Company)
Radar for Saturday overnight. (Courtesy: The Weather Company)
radar for Saturday overnight. (Courtesy: The Weather Company)
Sunday morning radar. (Courtesy: The Weather Company)
Sunday morning radar. (Courtesy: The Weather Company)
Sunday afternoon radar. (Courtesy: The Weather Company)
Sunday afternoon radar. (Courtesy: The Weather Company)
Radar for Monday morning. (Courtesy: The Weather Company)
radar for Monday morning. (Courtesy: The Weather Company)
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Saturday morning radar. (Courtesy: The Weather Company)
Saturday afternoon radar. (Courtesy: The Weather Company)
Radar for Saturday overnight. (Courtesy: The Weather Company)
Sunday morning radar. (Courtesy: The Weather Company)
Sunday afternoon radar. (Courtesy: The Weather Company)
Radar for Monday morning. (Courtesy: The Weather Company)

Cloudy skies and the rain and drizzle will certainly keep Saturday on the gloomy side, but considering these are tropical remnants, and considering Harvey鈥檚 terrible history, the 海角精品黑料 listening area will be getting off easy.

It does look like umbrellas will be needed for most of the day, but rainfall may only add up to about half an inch in the mountains and close to D.C. Slightly higher amounts of an inch or more will be likely from the Hampton Roads/Virginia Beach areas and the Outer Banks.

As was mentioned in the previous outlook, there is still likely to be a big temperature variance across the region, with cooler numbers in the 60s along the Delmarva beaches and here at home, with slightly higher temperatures in Va. Beach/Outer Banks. This will depend on the exact position of the old front which by then will have merged with Harvey鈥檚 old circulation.

Regardless of Saturday鈥檚 outcome, Sunday will feature gradually clearing skies and warming temperatures courtesy of increasing sunshine and predominantly westerly winds. Most of us will be back up to near 80 in the afternoon, and Labor Day Monday will have all of us in the mid 80s. So with the exception of Saturday, the weather will cooperate for the rest of weekend plans.

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Workweek weather: Coastal storm brings rain, return of humidity /weather/2017/08/workweek-weather-coastal-storm-brings-rain-return-humidity/ /weather/2017/08/workweek-weather-coastal-storm-brings-rain-return-humidity/#respond Mon, 28 Aug 2017 05:29:29 +0000 http://wtop.com/?p=15372866 WASHINGTON 鈥 While Tropical Storm Harvey continues to bring catastrophic, life-threatening flooding to Texas in the days ahead, we may have a named tropical low pressure system moving up the eastern seaboard from now through the middle of the week.

While Tropical Storm "Harvey" continues to bring catastrophic, life-threatening flooding to Texas in the days ahead, we may have a named tropical low pressure system moving up the eastern seaboard from now through the middle of the week.
(海角精品黑料/Storm Team 4)
While Tropical Storm “Harvey” continues to bring catastrophic, life-threatening flooding to Texas in the days ahead, we may have a named tropical low pressure system moving up the eastern seaboard from now through the middle of the week. (海角精品黑料/Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
How could it all add up for our area? The RPM shows that it鈥檚 umbrella weather, but rainfall amounts won鈥檛 be heavy. Again, keep in mind, most of the amounts shown would fall on Tuesday and Tuesday night. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
(1/17)
While Tropical Storm "Harvey" continues to bring catastrophic, life-threatening flooding to Texas in the days ahead, we may have a named tropical low pressure system moving up the eastern seaboard from now through the middle of the week.
(海角精品黑料/Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
These images show the RPM computer model simulation of cloud cover and weather radar as the next likely tropical depression or Tropical Storm 鈥淚rma鈥 heads up the eastern seaboard to the mid-Atlantic before heading out to sea. Clouds increase Monday and light rain/drizzle arrive Tuesday, ending early Wednesday. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)
The constant easterly winds Monday and Tuesday will definitely have an effect on temperatures. It鈥檚 not until Wednesday that it will start to feel like summer again. (Data: The Weather Company | Graphics: Storm Team 4)

The name would be Irma. The storm is forming off the coasts of northern Florida and the Carolinas along an old stalled-out frontal boundary in a climatologically favored area for this to occur. Most models develop the storm and send it close enough to us that the D.C. area will get some light to moderate rainfall from it, but mostly east of the mountains.

Easterly winds set up between the low and the high pressure system over New England that has been providing us with comfortable weather for days will keep clouds around and temperatures down, remaining well below average until the middle of the week. Along with this increased rain chance will be an increase in the humidity, with dew points climbing out of the 50s into the 60s starting Monday, making it feel a bit more uncomfortable. However, tropical storm conditions would be confined to coastal areas, especially Hampton Roads and the Outer Banks.

The rain will end Wednesday morning at the latest, followed by partial clearing of the skies courtesy of a switch to a more westerly wind direction. That will also result in some higher temperatures, back up to more seasonable levels for the first time in a while, and making those higher dew points much more noticeable. So the middle of the week will be a bit more like August. Then a cold front will slide through on Thursday followed by a return to much less humid air and cooler than average temperatures.

There is a lot of disagreement in the longer range computer models about what to do with the ultimate remnants of Harvey, whether dissipating it over Arkansas or taking it into the Tennessee Valley. Either way, rain from the storm will not affect us this week.

Daily weather highlights

Monday

  • Just a few clouds to start, cool and comfortable, also
  • Clouding over from south to north during the day
  • Temperatures still below average
  • Breeze picks up toward evening

Tuesday

  • Cloudy, damp and cool
  • Coolest day of the week, not getting much milder than morning lows
  • Rain and drizzle, especially east of the mountains
  • Rain may be moderate from central Virginia through southern Maryland, and some thunder will be possible
  • Breezy and gusty

Wednesday

  • Any lingering rain ending in the morning
  • Breezy and turning warmer with gradually clearing skies
  • Warm and sticky during the afternoon

Thursday

  • Increasing clouds
  • Warm and muggy
  • Chance of a few showers or thunderstorms later in the day

Friday

  • Back to autumn-like conditions
  • Breezy with much lower humidity
  • Sun goes in and out of fair weather clouds

Editor’s Note: The 海角精品黑料 Workweek Weather Blog is intended as an in-depth yet plain language summary of the business week鈥檚 weather potential in the D.C. area along with an explanation of the contingencies and uncertainties that exist at the time of publication. For the latest actual Storm Team 4 forecast, check out the main .

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Workweek Weather: Some clouds for eclipse; back to humidity /weather-news/2017/08/workweek-weather-some-clouds-for-eclipse-back-to-humidity/ /weather-news/2017/08/workweek-weather-some-clouds-for-eclipse-back-to-humidity/#respond Mon, 21 Aug 2017 04:02:21 +0000 http://wtop.com/?p=15263561 WASHINGTON 鈥 The late American comedian George Carlin at night followed by partial lightness toward morning. On Monday, that鈥檚 the forecast for most of the afternoon followed by the evening.

Naturally, this is regarding the much-anticipated solar eclipse. Unfortunately, it does not look like Monday will have a repeat of Sunday鈥檚 near totally clear skies. But at the same time, it still looks like the eclipse will be at least partially visible through the clouds.

(The Weather Company, Storm Team 4)

(And, again, it cannot be emphasized enough to make sure you’re doing so with approved, genuine eclipse filters or you’re not looking directly at all.)

High pressure that brought abundant sunshine on Sunday is heading out to sea, and southeasterly winds in its circulation started transporting increased humidity back into the D.C. area at night. That’s what led to the cloud cover that will be over some of the area first thing Monday morning.

However, these types of clouds this time of year are usually a morning phenomenon, and the daytime heating will mix them up and break them up into scattered cumulus clouds 鈥 they are not expected to interfere completely with eclipse viewing. We are categorizing the day as “partly sunny,” which basically means even though there will be some cloud cover, at most times, the disc of the sun will be visible in the sky, even though there may not be an abundance of blue color.

Cloud cover or no cloud cover, during the eclipse, it will still get fairly dark. Temperatures will drop temporarily. Interpolating from some reports of past eclipses, there are estimates there could be a 5-10 degree drop in the greater D.C. area.

Later in the day after the eclipse is over, temperatures will climb again, and the region will likely be tracking an isolated or a few scattered thunderstorms that will form near the mountains. They would drift toward the greater 海角精品黑料 listening area in the evening.

After the eclipse and everything on Monday is over, the region will be in more of a southwesterly flow on Tuesday, keeping the humidity in place but bringing in even hotter temperatures. Combined with the humidity, Tuesday will be a very uncomfortable day. A line of storms will accompany a cold front in the Midwest and Ohio Valley but may not make it to the D.C. area before the day is through.

That cold front will pass through likely midday Wednesday. Some showers and storms will be scattered along the front, some with potentially gusty winds. But the good news is much drier air will filter in behind the front Wednesday evening and last the rest of the week, possibly into the upcoming weekend, courtesy of a big area of Canadian high pressure.

The second half of the week will have seasonable temperatures with much lower humidity levels. The region will be getting an extended break from storms and rain.

Recapping some eclipse factoids: The region is looking at 82 percent coverage, peaking at 2:42 p.m. The areas in the country which will see total coverage will stretch from Oregon to South Carolina.

(The Weather Company/Storm Team 4)

Daily weather highlights

MONDAY
鈥 Muggy to start with low-level clouds
鈥 Heating up quickly in partial morning sunshine
鈥 Mostly dark from roughly 1:45 p.m. until 3:45 p.m. (Yes, that鈥檚 the eclipse effect!)
鈥 Hot and humid, except for about 5-10 degrees cooler during the eclipse
鈥 Isolated thunderstorms toward evening

TUESDAY
鈥 Hazy, hot and very humid
鈥 Heat index close to 100
鈥 Isolated thunderstorms possible, mostly west or near Interstate 81

WEDNESDAY
鈥 Mostly cloudy, warm and very humid in the morning
鈥 Midday storms 鈥 at least scattered, possibly in an organized line
鈥 Breezy and turning less humid late in the day

THURSDAY & FRIDAY
鈥 Partly to mostly sunny
鈥 More seasonable high temperatures (low 80s)
鈥 Much lower humidity and very comfortable

Editor’s Note: The 海角精品黑料 Workweek Weather Blog is intended as an in-depth yet plain language summary of the business week鈥檚 weather potential in the D.C. area along with an explanation of the contingencies and uncertainties that exist at the time of publication. For the latest actual Storm Team 4 forecast, check out the main .

Source

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