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D.C. area forecast: Showers and storms today, some heavy; but then beautiful

Today’s Daily Digit

A somewhat subjective rating of the day’s weather, on a scale of 1 to 10.

Knocking it for the dreariness, but not too much since we need those drops

Express Forecast

Today: Cloudy, showers and storms.  Highs: 78-83.

Tonight: More showers, few storms especially evening.  Lows: 64-70.

Tomorrow: Partly cloudy.  Highs: 81-84.


Radar & lightning: Latest regional 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.

Low pressure lifting northeast from the Ohio Valley to New England trails a soggy cold front through our area today, generating lots of showers and mainly afternoon to evening thunderstorms.  Rain coverage should be widespread today and into tonight before the entire system vacates the area by tomorrow, leaving us in another round of fresh, comfortable air that dominates the balance of the week.  The weekend is looking just swell also with mostly sunny conditions with highs in the 80s.  Sunday could start to be a touch more humid though as we set the stage for a hotter pattern next week.

Today (Tuesday): Clouds rule our skies today with periods of showers and storms.   Temperatures are held back by clouds and precipitation, but we manage to make the upper 70s and low 80s during the afternoon.  Best chance to hear rumbles of thunder is in the afternoon into evening period, though some are possible in the morning too.  A few storms may be strong to severe (although the amount of instability may be a limiting factor). Rain totals should reach  0.5″ with locally higher amounts possible. Winds blow from the south and southeast at 5 to 10 mph with occasional higher gusts.  Confidence: Medium-High

Tonight: Cloudy conditions continue with more scattered showers and storms, especially through around midnight.  Heavy rain is possible.  While storm totals are probably mostly in the 0.5-1″ range, isolated amounts over 2 inches cannot be ruled out and even areas of flooding before the rain clears.  Breezes from the south and southwest shifting to come from the west and northwest late at night mostly in the 5 to 10 mph range.  Lows drop into the middle 60s in the outer ‘burbs to just low 70s right in the city.  Confidence: Medium-High

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

Tomorrow (Wednesday):  A cool, drier air mass starts its process of advancing into our area.  Partly sunny with a few isolated early morning showers possible, but then a comfortable day as highs reach the lower 80s in the afternoon buoyed along by breezy winds from the northwest at 5 to 15 mph with occasionally higher gusts.   Confidence: Medium-High

Tomorrow night: Mostly clear and comfortable with lows slipping to the upper 50s and low 60s.  Winds becoming light. Confidence: Medium-High


Thursday and Friday are Nice Day qualifiers with mostly sunny weather, very comfortable humidity, and high temperatures only lifting to the lower to middle 80s.  For those of you tracking dew points, we are talking 50s with this very low humidity- take that Dog Days of August! Thursday night is mostly clear and comfortable with lows ranging from the middle to upper 50s in the suburbs to lower 60s in the city.   Confidence:  High

The weekend seems like a real nice one for middle August with mostly sunny skies both days.  Highs Saturday should range into the middle 80s, but we escalate into the middle to upper 80s on Sunday with slightly higher humidity levels too.  Just a few clouds Saturday night with lows in the 60s.  Enjoy this weekend as we expect a surge of increased heat and humidity next week with more 90s returning for a final summer hurrah.   Confidence: Medium-High

Heavy showers flooded streets and backyards in the Washington area on Tuesday, but forecasters said the weather should clear up by the end of the week. (The Washington Post)
Matt Rogers is a meteorologist and a Petworth resident. He is president and co-founder of Commodity Weather Group in Bethesda, Md., which focuses on weather risks for the energy and agriculture sectors. Like most meteorologists, his passion for weather started extremely early in life and has never let go.
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