Slow-moving storms this afternoon and evening may pack downpours that could cause flooding, forecasters say.
The National Weather Service just issued a Flood Watch for Arlington, the District and most of the region as a result.
Weather
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Update at 10:20 p.m. — Portions of northern Arlington County are now under a Flash Flood Warning after an extended period of heavy rain.
Flash Flood Warning including Washington DC, Arlington VA and Chillum MD until 1:15 AM EDT pic.twitter.com/9ywbqnDoL2
If you think today is hot, bad news: tomorrow is going to be worse.
The National Weather Service has already issued a Heat Advisory for Thursday, calling for heat index values of up to 106 in parts of the D.C. region.
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Update at 3:50 p.m. — A Severe Thunderstorm Warning has been issued for the far northern tip of Arlington.
Severe Thunderstorm Warning for DC, Montgomery, Prince Georges, Arlington, and Fairfax counties until 4:30PM. Main hazards are 60mph wind gusts and quarter size hail. #vawx #dcwx #mdwx pic.twitter.com/3TnBKyYKUY
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(Updated at 11:15 a.m.) It will be hot and humid today — so bad that the National Weather Service has issued a Heat Advisory for Arlington, D.C. and other parts of the area.
The advisory will go into effect later this morning.
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Update at 1:50 p.m. — A Severe Thunderstorm Watch was just issued for parts of the D.C. area, including Arlington, and much of the D.C.-Baltimore-Philly-NYC corridor. That’s in addition to the Flood Watch, below.
From the National Weather Service:
A Severe Thunderstorm Warning was just issued for Arlington County.
A strong storm is approaching the area from the west. The line of storms has already prompted a severe warning in Fairfax County.
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Updated at 2:15 p.m. — A Severe Thunderstorm Watch was also just issued for the area.
A severe thunderstorm watch has been issued for parts of District of Columbia, Maryland, Virginia and West Virginia until 10 PM EDT pic.twitter.com/SpwWlujlua
Arlington and much of the D.C. area will be under a Flood Watch starting tonight.
Heavy rain and storms are expected tonight. The rain is expected to persist through Saturday afternoon, raising the possibility of flooding, including flash flooding caused by “excessive rainfall.”
Saturday night’s severe storms caused significant tree damage in parts of northern Arlington.
The southern reaches of the storms that flooded portions of D.C. and suburban Maryland also packed a punch in Arlington, ripping through the northern corner of the county with heavy rain and high winds. Other parts of Arlington only received moderate rainfall.
Arlington and much of the D.C. area is now under a Severe Thunderstorm Watch.
The watch is in effect until 7 p.m.
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A line of “training” thunderstorms could lead to an extended period of heavy rain and flooding in Arlington and surrounding areas.
The National Weather Service just issued a Flood Warning for the area, in effect until 3 a.m.