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Posted at 10:00 AM ET, 06/ 4/2009

Forecast: Sharply Cooler & Very Wet End of Week

By Josh Larson

But weekend's weather will be sunny, dry & much warmer

* Flood Watch This Afternoon Through Tomorrow Afternoon *
* NatCast | UnitedCast | The Birth of a Pond *

EXPRESS FORECAST

Today: Sharply cooler. Overcast & showery. Mid-60s. | Tonight: Overcast and rainy. Upper 50s. | Tomorrow: Overcast and rainy. Mid-60s. | A Look Ahead

FORECAST IN DETAIL

We're in for a jarring end to the work week with much colder temperatures (off some 20-25 degrees from the past couple days' highs), completely overcast skies, and very wet weather. In fact, over the next 48 hours much of the region may see 2-3" of (sometimes-pouring) rain. The good news is that high pressure arrives just in time for the weekend and pushes the wet weather out. In its place will be sunny and dry conditions with high temperatures popping right back into the 80s.


Radar: Latest D.C. area radar loop shows movement of precipitation over past two hours. Powered by HAMweather. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Today (Thursday): Bring at least a light jacket and umbrella to work today since a frontal boundary moving to the south of us will spawn showers, especially in the afternoon and evening, and a northeast flow off the ocean will keep highs only in the mid-60s. A rumble of thunder is not out of the question but no organized or severe thunderstorms are expected. (Generally 0.3-0.6" of rain may fall through early evening.) Confidence: Medium-High

Tonight: Overcast skies will prevail with just about all locations with widespread showers and periods of moderate to heavy rain. Again, a rumble of thunder is possible here and there, but should be a non-issue. (0.5-1" will generally fall, with locally heavier amounts). Overnight lows slip to the mid-to-upper 50s. Confidence: Medium-High

Keep reading for the vastly improved weekend forecast...

Tomorrow (Friday): If you don't like today's weather you're not going to like tomorrow's any better. A coastal low will "ride" up the eastern seaboard bringing with it completely overcast skies and a plethora of rain, sometimes of the moderate to even heavy nature, and northeasterly winds again hold highs only in the mid-60s. Some areas may see up to (and even over) an inch of new rainfall. Confidence: Medium-High

Tomorrow Night: You should still bring an umbrella with you Friday night, but this time somewhat drier air will be attempting to filter into the area. That means that any showers will be less widespread and more periodic than during the daytime Friday. Overnight lows will drop to the upper 50s but northerly winds at up to 10mph will probably make it feel colder than that. Confidence: Medium

A LOOK AHEAD

Good news, fair-weather fans! For the second weekend in a row, Mother Nature will cooperate in bringing high pressure to the region which will dry things out rapidly and foster a good deal of sunshine.

If you wake up early enough on Saturday you may see mostly cloudy conditions, but skies should rapidly clear giving way to a mostly sunny afternoon with light winds. Highs will be near or a few degrees above the 80-degree mark, with humidity largely in check; by afternoon, however, we'll see high UV indices, so sun block is encouraged. Partly cloudy skies Saturday night with mild overnight lows in the mid-60s. Confidence: High

Plan on another pleasant day on Sunday, though temperatures will probably rise a notch or two into the mid-80s. Also, we may see a touch more in the way of cloudiness than on Saturday, but the day should still feature at least moderate sunshine. I think clouds will be on the increase Sunday night, helping to keep lows from dropping much below 70. Confidence: Medium-High

The forecast for Monday is rather uncertain, with some models suggesting the possibility of showers and thunderstorms while others keep us more or less dry. I can tell you with relative confidence, however, that regardless of which solution pans out we'll probably see mostly cloudy skies. At this point, I'd put the chance of precipitation at about 40%. Afternoon highs remain in the mid-80s with overnight lows near 70. Confidence: Low-Medium

By Josh Larson  | June 4, 2009; 10:00 AM ET
Categories:  Forecasts  
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Next: Strong Storms Douse Region with Rain

Comments

The clouds and cool are welcome. The rain can stay away. As can the ants that have been flooded out yet again; they are once more in the kitchen.

Anyhoo, the big line of storms brought even more rain and lots of thunder last night to Silver Spring. Fortunately the electricity stayed on the entire time.

Posted by: Murre | June 4, 2009 6:16 AM | Report abuse

This current pattern of fronts stalling out across our area with waves of low pressure riding along it is atypical for this time of year, correct?

We need a pattern change. Any chance of that in the near future?

Tired of standing in the rain while waiting for the bus seemingly every single day.

Posted by: ThinkSpring | June 4, 2009 7:33 AM | Report abuse

63 degrees, cloudy and foggy at 7:20.

Most folks in Augusta and Rockingham received less than half an inch of rain yesterday, some received nothing.

Its getting a little dry. Yesterday I saw a farmer cultivating a field and creating lots of dust.

Hopefully we will receive copius amounts of rain later today and tonight. We could really use that 1-2 inches predicted.

D.C. continues to be pounded, but many areas less than 50 miles north, south, east,or west of D.C. have received below normal rainfall for the past 30 days. An amazing repeat of 2008.

Some of you D.C. folks would be jumping for joy if winter snowfall followed a similar pattern!!!!

Bombo: Cheer up! A beautiful weekend is on the way............before more rain next week!

Posted by: AugustaJim | June 4, 2009 7:37 AM | Report abuse

I see Dulles is now more than 5 inches above normal for the year....30% above normal in percentage terms.

That's significant.

Posted by: ThinkSpring | June 4, 2009 7:38 AM | Report abuse

ThinkSpring:
Part of this pattern can be blamed on the Bermuda High, which is a little weak in westward ridging this late spring, but sufficiently strong to bring fronts to a grinding halt.

A pattern change in the near future does not seem likely.

Posted by: AugustaJim | June 4, 2009 7:45 AM | Report abuse

Nice storms last night, my weather radio went off 10 times ;)

Oh, happy anniversary for the June 4 2008 derechos!

Posted by: weatherdudeVA | June 4, 2009 8:22 AM | Report abuse

West Springfield:
Yesterday morning's storm gave me 0.5" Yesteday afternoon/night up to 5:30am gave another 0.73"

28 hour total: 1.23"

Posted by: bikerjohn | June 4, 2009 8:59 AM | Report abuse

1.5 inches in the rain gauge from last night's gully washer. and we got .25 from a storm around midnight tuesday. The good news is that nobody's wells should run dry this year. Instead we should start building an ark ....

Posted by: weathergrrl | June 4, 2009 9:08 AM | Report abuse

@ThinkSpring,

This current pattern of fronts stalling in/around our area is not that atypical of this time of year, though normally more likely in April to mid-May than now...

It is my, not (necessarily) CapitalWeather Gang's thinking, that overall/generally wetter and cooler than normal conditions may last (well into) most of the summer...

Posted by: Josh-CapitalWeatherGang | June 4, 2009 9:39 AM | Report abuse

Over the next few hours it looks like precipitation is more likely over the northern suburbs than further south.

Also, remember to report your rain totals today/tonight/the next 48 hours!

Posted by: Josh-CapitalWeatherGang | June 4, 2009 9:50 AM | Report abuse

The NatsCast only covers the 7 pm game tonight, but we've got a doubleheader today now, with the first game at 4:30. Any chance they get at least one of two in?

Posted by: buckwheaton1 | June 4, 2009 10:08 AM | Report abuse

Thanks, Josh....I think.

Being a summer lover, I hope you're thinking is incorrect though. :)

I'm really sick of this rain and based on my conversations with co-workers, I'm not alone.

Posted by: ThinkSpring | June 4, 2009 10:26 AM | Report abuse

@buckwheaton1

NatCast was actually updated (about the same time you left your comment) to account for the doubleheader. Doesn't look great, but check out the updated NatCast for all the details.

Posted by: Dan-CapitalWeatherGang | June 4, 2009 10:27 AM | Report abuse

Have gotten 4.25" of rain since 5 pm Tues in NW Spotsy.

Posted by: VaTechBob | June 4, 2009 10:29 AM | Report abuse

What time will the rain start today? It's overcast here in Capitol Hill. I'd like to go out to get some lunch w/o getting drenched.

Posted by: jojo2008 | June 4, 2009 11:01 AM | Report abuse

@jojo2008: precipitation is moving in considerably slower than I thought it would -- mea culpa. It looks like the immediate DC metro area may not, now, see showers/rain until late afternoon...

Enjoy the dryness while you can!

Posted by: Josh-CapitalWeatherGang | June 4, 2009 11:26 AM | Report abuse

thanks. Made it back dry:)!

Looking at the radar: could it be possible that that band of rain misses the DC metro entirely? Looks like it may just kiss rockville and the N beltway area.

Posted by: jojo2008 | June 4, 2009 12:52 PM | Report abuse

...appears to be the perfect evening to stay inside and listen to the phenomenal new Dave Matthews Band album....

Posted by: finnellb1 | June 4, 2009 1:40 PM | Report abuse

I'd like a little elaboration on the -sort of- prediction of a cool wet summer. That prospect is going to depress me and a good many other people I know. We are sick to death of the weather pattern.

Posted by: liledjen4901 | June 4, 2009 2:30 PM | Report abuse

The comments to this entry are closed.

 
 
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