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Posted at 3:15 PM ET, 04/30/2009

PM Update: Warm Front To Bring Mild Friday

By Ian Livingston

Late-afternoon storms possible to end work week

* Capitol Sunrise Photos | NatCast: Cool, Stray Shower? *

Clouds and cool conditions persisted today as we await a warm front that will bring about 24-48 hours of milder, though still mostly cloudy, weather. Highs today are mostly reaching around to just over 60, so the cooler air mass that arrived yesterday is already giving way a bit. As anticipated, most shower activity remains well northwest of the region, but some isolated sprinkles are possible the rest of the day.

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

Tonight: A warm front lifting through the area will keep us mild overnight. Some showers are possible as the front heads north, primarily between midnight and early morning. With increased moisture levels, some fog and drizzle is also possible. Lows should fall to around 60 throughout the area.

Tomorrow (Friday): Highs will be fairly warm Friday, at least into the mid-70s most spots, even with mostly cloudy skies. We could see a few showers during the morning and early afternoon, but the best chances for steadier rain should be north and west of the immediate metro area. In the late afternoon, just about everyone stands a chance (about 40-50%) of seeing some heavier showers and thunderstorms.

See Josh Larson's full forecast through the beginning of next week.

Air Quality Awareness: Today is day 4 of Air Quality Awareness Week, and the focus is How to Get Current Air Quality Information. About 300 cities nationwide, including Washington D.C., issue daily air quality products. Thanks in part to recent rain and cool weather, today's local indicators are showing fairly innocuous air conditions. See (and bookmark for future reference) the current Air Quality Index and forecast guidance.

By Ian Livingston  | April 30, 2009; 3:15 PM ET
Categories:  Forecasts  
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