Updated at 3:35 p.m. — NWS has issued a Flash Flood Warning for the Tysons area. The warning is in effect until 6:30 p.m.
More from NWS:
At 330 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the area. Up to two inches of rain have already fallen in portions of the area, and rainfall amounts around 2 to 3 inches are expected within one hour. Flash flooding is ongoing or expected to begin shortly.
Earlier: Tysons and surrounding areas are under a Flash Flood Watch today.
The National Weather Service issued the watch shortly after 1:30 p.m. The watch will be in effect until 11 p.m.
According to NWS, heavy rainfall of 1-3 inches is expected to fall within an hour, possibly leading to flash flooding in local areas.
The Tysons area is also under a Heat Advisory and Severe Thunderstorm Watch this afternoon and evening.
Flash Flood Watch until 11 PM pic.twitter.com/GA144bSV5g
— NWS Baltimore-Washington (@NWS_BaltWash) July 22, 2020