A Severe Thunderstorm Watch is in effect for the majority of the D.C. area until 9 p.m. tonight. Storms will continue to develop mainly southwest of D.C. and move into the region closer to the evening rush around 5 p.m. to 6 p.m. Very heavy rainfall will be possible in storms, which is why the National Weather Service also put the entire area under a Flash Flood Watch. Be sure not to cross any flooded roadways.(Severe Thunderstorm Watch until 9 p.m.)
Storms will linger through late this evening but should diminish overnight. A few showers will be possible through the morning hours as the front continues to move through the region and Hurricane Arthur approaches from the south.