The Meteorological Service (Met Service) has issued a Flash Flood Watch for low-lying and flood-prone areas of all parishes, effective until 5 a.m. tomorrow (June 16). Some areas of the storm will experience torrential downpours, which can produce localized flash flooding.
The most active hour with pockets of heavy rain for the Baltimore area is around 3:30 p.m. A tornado or two and some hail may also be possible, according to the weather service's Storm Prediction Center.
Be prepared for the storms this afternoon to contain damaging winds and some hail. We'll really have to start watching the sky around 3 p.m., as the line of strong thunderstorms begins pushing across the Delaware River.
A flood warning remained in effect for Woodford and northeastern Tazewell counties, as well.
An approaching cold front is bringing the stormy weather to southern New England, where the weather was hot and humid Monday morning, the service said.
The watch area includes Prince William, Fairfax and Arlington counties, as well as communities in and around Fairfax, Falls Church, Manassas, Alexandria, Leesburg, Ashburn and Sterling.
The storm threat increases Sunday night, with the chance of precipitation at 90 percent and rainfall amounts between a half- and three-quarters of an inch possible.
Flash flooding is expected. Plan to take shelter if/when NWS Sterling issues weather warnings. Temperatures will rise into the 80s inland and top off in the upper-70s to near 80 degrees along the Shoreline.
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