The National Weather Service issued watches for the D.C. area Thursday.
Most of the D.C. metropolitan area is under a severe thunderstorm watch until 9 p.m. and a flash flood watch until midnight.
A flood warhing for Calvert, Charles and St. Mary's counties in Maryland expires at 8:45 p.m.
Doppler radar detected severe storms in the area Thursday afternoon into the evening.
A tornado warning for Calvert and St. Mary's counties in Maryland expired at 6:30 p.m.
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