D.C. area forecast: Thunderstorm, flooding threat looms through Thursday

Today’s Daily Digit

A somewhat subjective rating of the days weather, on a scale of 1 to 10.

5
Warm & more humid again with t’storm chance back by afternoon or evening. Who’s ready for a pattern change?

Express Forecast

Today: Partly sunny. 30% chance of p.m. showers/storms. Highs: Mid-to-upper 80s.

Tonight: Mostly cloudy. 30-50% chance of showers/storms. Lows: Near 70 to low 70s.

Tomorrow: Partly sunny, breezy. Showers and storms possible. Highs: Mid-to-upper 80s.

FORECAST IN DETAIL


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

Our unsettled weather pattern stays that way through tomorrow. Thunderstorm chances return by this afternoon and especially tonight and tomorrow thanks to the warm air, rising humidity, an intruding warm front and an energetic jet stream. Storms are not a certainty for everyone, but where they develop they could very well be severe with the potential for flooding and damaging winds. Good news is that we have a nice weekend ahead.

Related: Double trouble: severe storm risk both Wednesday and Thursday for D.C. area

Today (Wednesday): The atmosphere heats up to highs in the mid-to-upper 80s and the humidity climbs higher as well. Along with partly sunny skies and light winds from the west near 10 mph, a few strong to severe thunderstorms are possible in the afternoon with an overall chance of 30%. It won’t take much rain to bring about more flooding issues, so stay tuned to the blog or our Twitter or Facebook feeds for updates. Confidence: Medium

storm threat

Tonight: A more organized area of possibly strong to severe thunderstorms with potentially damaging winds may come at us from the Midwest, but again the timing remains very uncertain, and it might even wait until Thursday morning or try to miss us to the north. Generally speaking, storm chances are in the 30-40% range through evening, and then rise to around 50% overnight. Lows stay mild, from near 70 to the low 70s under mostly cloudy skies. Confidence: Low-Medium

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend…

Tomorrow (Thursday): We continue to watch the potential for an organized area of thunderstorms to come at us from the west, that is if it doesn’t come through overnight Wednesday or try to veer to our north. Best chance of seeing this is in the morning, and any storms could be severe with damaging winds and flooding rain, but then a cold front keeps the chance of showers and storms going during the afternoon into evening. Otherwise it’s a warm, humid and breezy day with partly sunny skies and highs in the mid-to-upper 80s. Confidence: Low-Medium

Tomorrow night: Depending on the speed of the cold front, the shower and storm risk may extend into the evening, but by the overnight rain chances dwindle and we should see at least partial clearing in the skies above as drier air pushes into the area. Lows bottom in the upper 50s to mid-60s. Confidence: Low-Medium

A LOOK AHEAD

Wow, so much better on Friday let me tell ya. Can’t rule out an isolated shower. But for the most part we’re looking at partly to mostly sunny skies and much lower humidity. Along with the drier air comes cooler highs in the upper 70s to near 80 with a bit of a breeze from the northwest. Quite comfortable Friday evening and overnight as lows drop back to the upper 50s to low 60s. Confidence: Medium

After a busy weather week we’ll be in the mood for a nice quiet weekend, and that’s pretty much what we have in store the way it looks now. Highs aim for the low-to-mid 80s with partly to mostly sunny skies and low humidity, though starting to rise again by Sunday. A shower or thunderstorm chance may also try to creep back in by late Sunday afternoon or night. Confidence: Medium-High

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