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Posted at 3:15 PM ET, 09/11/2009

PM Update: Pesky Coastal Storm Moving Out

By Ian Livingston

Clearing Saturday and quite nice on Sunday

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After several days of waiting for rain, it showed today. Some places south and west of the city probably wonder what the big deal was. Through 2 p.m. daily totals include 0.80" at National, 0.20" at Dulles, and 1.42" at BWI. As forecast, the most impressive totals have been over north and east portions of the area, with even higher totals nearer the coast. As the storm moves out, clearer sky is trying to return from southwest to northeast, but it will be slow. Light rain is still possible for a few hours, mainly north and east of D.C. Highs that rose to near 70 in many spots will fall back through the 60s this evening.

Radar: Latest regional 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.

Through Tonight: Once we get through evening, rainfall (mostly north and east of D.C.) should be just about done, but we can still expect a mostly cloudy night with some drizzle or passing showers possible mainly before midnight. It will be another cool one with lows mainly ranging from the upper 50s to lower 60s.

Tomorrow (Saturday): The pesky and slow-moving storm system will finally pull away on Saturday, but we should still see a fair amount of clouds float by and possibly a shower or two. Any precipitation should be light and isolated, with many or most places staying dry. Highs likely rise into the mid-70s, maybe a little higher.

See Camden Walker's full forecast through the beginning of next week. And if you haven't already, join us on Facebook and follow us on Twitter.

Tropics: Hurricane Fred continues to spin way out in the Atlantic. Fred is expected to weaken back down to at least a tropical depression if not totally dissipate. NASA satellites captured some cool images of Fred over the past few days, including a high-resolution QuickScat image yesterday and a beautiful visible satellite image on Wednesday. Looking beyond Fred, Jeff Masters reminds us we are not done with the season after the climatological peak passed yesterday. Though El Nino's wind shear is expected to increase as time passes, disruptive wind averages across the Atlantic remain fairly normal for this time of year, and he still expects another hurricane to make landfall in the basin.

By Ian Livingston  | September 11, 2009; 3:15 PM ET
Categories:  Forecasts  
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Next: Forecast: Gray Skies to Gradually Clear


Is this area of rain to the north going to come back into DC this evening?

Posted by: Tom8 | September 11, 2009 4:50 PM | Report abuse

A bike blog I read posted a time-lapse video of some interesting clouds. Thought some folks here would enjoy it:

Posted by: debiguity | September 11, 2009 7:02 PM | Report abuse

Why was this storm not named? It clearly had tropical charcteristics, a closed-upper system, no fronts, clearly-defined feeder bands, and a warm-core (or at least warmish-core) structure. It also developed over, and was sustained by warm Gulf Stream waters, and was obviously not an extratropical system. I think NHC simply goofed on this one, and didn't see the forest for the trees.

Posted by: MMCarhelp | September 11, 2009 10:42 PM | Report abuse


I thought it was a hybrid, at best. Yes, convection fired up over the warm gulf stream, but I noticed extratropical structure.

Posted by: Jason-CapitalWeatherGang | September 12, 2009 12:54 AM | Report abuse

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