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Posted at 1:30 PM ET, 09/ 9/2008

Forecast: Cold Front Coming With Showers, Storms

By Matt Rogers

Some thunderstorms today could be strong or severe

*Flash Flood Watch in Effect through this evening*
*Severe Thunderstorm Watch in effect until 4 p.m. cancelled except for eastern counties-- nastiest storms northeast of our immediate area*

A significant cold front is on the way into the area today and it will bring the potential for some strong to possible severe thunderstorms, from late this morning into the evening. Once the cold front sweeps through, the stage will be set for some pleasant September weather on Wednesday and Thursday. Warmer weather, increased humidity, and more thunderstorms get re-introduced to the DC area by Friday and the upcoming weekend. It looks like our dry August is definitely behind us!


Showers and thunderstorms today. Highs in the upper 80s. We should expect one of those variable cloud cover days with scattered showers and thunderstorms, especially after noon. The Storm Prediction Center is predicting an opportunity for severe thunderstorms today too, so expect a chance for some heavy downpours and gusty winds. Chance of rain is 70%. Highs should be in the upper 80s throughout the area, but expect typical cloud and shower-induced temperature volatility today.

Severe Weather Tracking Station
Warning Text: DC | MD | VA
Radar: Latest D.C. area radar loop from Weather Underground. Click on image to expand, zoom and for other options. Refresh page to update.
LWX Warnings
Warnings: Severe warnings from the National Weather Service. Updates without refresh (most browsers). Click label in legend for detailed warning text.

Tonight, storms could linger into the evening hours, but the winds should shift and temperatures should begin cooling. Look for lows in the lower to middle 60s with cooler breezes developing.

Confidence: Medium

Keep reading for the forecast through the weekend.


Sunshine returns. Top notch hump day! Highs in the lower 70s. The cold front should do its good work by tomorrow and the day should be quite comfortable with highs only in the lower 70s and nice breezes from the northwest. A few scattered clouds are possible.

Wednesday night is shaping up to be quite cool with lows in the 50s throughout the area (even downtown!). This potentially coolest night of September so far should also come with mostly clear skies.


Thursday stays with the "nice weather" theme by offering up only lower to middle 70s for highs. Look for mostly sunny skies and pleasant breezes again. Lows Thursday night in the 50s to lower 60s. Confidence: Medium-High

Friday sets another change in motion with an increase in temperatures and a little humidity. High temperatures are forecast to reach back up to near 80 through the area and we must re-introduce a chance of showers and thunderstorms (30%). The modest September humidity should keep lows back up in the upper 60s Friday night. Confidence: Low-Medium

The weekend keeps to Friday's theme of more warmth, clouds, and scattered shower and thunderstorm chances (about 30% each day) due to the proximity of a frontal system. Look for highs to hold up in the lower to middle 80s with lows primarily in the 60s. Hopefully, as the weekend gets closer, we should get a better handle on which day of the weekend has the better chance of being the nicer one. But it does appear like our drier pattern of our pre-Hanna days has come to a close. Confidence: Low-Medium

By Matt Rogers  | September 9, 2008; 1:30 PM ET
Categories:  Forecasts  
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Next: Hurricane Ike Hammering Cuba


Severe Thunderstorm Watch up for D.C. area and east.

Posted by: Ian, Capital Weather Gang | September 9, 2008 9:46 AM | Report abuse

ok, for fun I checked out the wash post snowcam at

Is this snowcam located in some bushes? will the plants be cleared out before December?


Posted by: Jack | September 9, 2008 11:22 AM | Report abuse

Looks more as though our storms will more likely be early rather than late. Much of the action here in the Metro area may be done by the time I need to leave for my dance at 8 PM.

Some of these dances are getting expensive. Tonight's dance is $15 rather than the usual $10 @ Clarendon Ballroom. The dance Sunday night in Bethesda is $50.00! That's awfully expensive if they have only a DJ and not a live band. The extra $5.00 tonight is due to the swing band's being from London rather than local.

Posted by: El Bombo | September 9, 2008 11:48 AM | Report abuse

Jack, I love your forward thinking...get those snow cams in place!!! Bring on the SLCB!!

Posted by: missy | September 9, 2008 12:21 PM | Report abuse

Looks like the NWS cancelled the t-storm watch. It's currently raining steadily here in on the Bethesda/NW DC/Chevy Chase border, but that's all we saw.

Posted by: Jed in Bethesda | September 9, 2008 12:57 PM | Report abuse

Have there been severe storms anywhere?

Posted by: Laura in NWDC | September 9, 2008 1:42 PM | Report abuse

There are extremely sever thunderstorms going on right now in Old Town Alexandria.

People are scrambling for water, dry goods and sand bags. This might be the work or terrorists manipulating the environment, or all the fault of that evil George Bush who of course works with these terrorists in secret.

Posted by: LoDaddy Watkins | September 9, 2008 2:56 PM | Report abuse

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