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Posted at 9:00 PM ET, 05/26/2009

PM Update: Showers, Flooding to Subside

By Capital Weather Gang

* CWG Summer Outlook | Congress Ponders New Climate Agency *

Moist flow off the ocean interacting with a warm front draped over the region brought frequent and sometimes intense showers to the area overnight and this morning, causing localized flooding in some areas, particularly in Montgomery County. Showers diminished this afternoon and should be sparse for the drive home.

Through Tonight: Showers should be few and far between through the commute. More rain could threaten this evening, though much of it may be confined to areas west of the Beltway, before rain chances wane toward dawn. Cloudy skies linger overnight and patchy morning fog is possible as temperatures remain steady -- mainly near 60.

Tomorrow (Wednesday): A wind from the south/southeast will elevate temperatures back to normal levels, with highs in the mid-70s. Can't rule out upper 70s to near 80 if the sun can put a bigger dent in the mostly cloudy skies than we're currently anticipating. By late afternoon and early evening, there's a 40% chance of some isolated showers and thunderstorms -- likely less numerous than earlier today.

See Matt Rogers' full forecast through the weekend.

Flooding Rain: Two to four inches of rain has fallen since yesterday in many parts of the D.C. metro area, enough to cause some flash flooding. In Montgomery County, a flood warning remains in effect for Seneca Creek (near Dawsonville) and Rock Creek (at Sherrill Dr.), where flood waters are expected to crest between 8 and 9 feet this afternoon. A Flood Watch is in effect for the entire region until tomorrow morning. (Flood Warnings and Watch have been cancelled.)

By Capital Weather Gang  | May 26, 2009; 9:00 PM ET
Categories:  Forecasts  
Save & Share:  Send E-mail   Facebook   Twitter   Digg   Yahoo Buzz   StumbleUpon   Technorati   Google Buzz   Previous: Congress Ponders National Climate Service
Next: Forecast: Warming Back Up. Drying Out?


Unofficial totals indicate new daily rainfall records at all 3 major reporting locations.

Posted by: CapitalClimate | May 26, 2009 4:05 PM | Report abuse

It is refreshing to read a weather predicition where the weather forecaster does not attempt to predict the exact temperature like all of the TV forecasters do, particularly since everyone knows that is iompossible.

Posted by: jjkovski | May 26, 2009 5:52 PM | Report abuse

National airport shows 1.47 inches the past 24 hours. Wonder what that does for the yearly rainfall.

Also, loading the main page is problematic. I sometimes get the ads and the borders but the middle content doesn't show up. I know it's not my hook up b/c I have Verizon fios at home.

Posted by: jojo2008 | May 26, 2009 6:02 PM | Report abuse

Why does the NWS still have a flood watch up until tomorrow morning if most of the rain is going to be west of here? Is the watch mostly for the western areas?

Posted by: steske | May 26, 2009 8:09 PM | Report abuse

Looks like NWS has cancelled flood watch, or so says their website...

Posted by: steske | May 26, 2009 8:24 PM | Report abuse

Five inches of rain in our gauge here in Capitol Hill!

Posted by: psilosome | May 26, 2009 9:59 PM | Report abuse

Got back from the woods with Gertie the other day. You guys were good, I tell you. Not a single drop of rain. Barely a cloud, in fact. Grandma Gertie was so happy, she out-drank me sitting around the fire Friday night. Then threw up in the tent. But other than that, a great weekend.

Unfortunately, I'm not floating down the Potomac after getting washed away in Alexandria. Not sure how long this Internet signal will last. At least I've got my friend Jim Beam with me. Hey look, a fish!

Posted by: SnowMonsterDC | May 26, 2009 10:46 PM | Report abuse

Strike that, Senator. I meant to say "I'm NOW floating down the Potomac." Just ate Salmon, though. When were those released into the river? Delicious, particularly the third eye.

Posted by: SnowMonsterDC | May 26, 2009 10:48 PM | Report abuse

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