A portion of southern Arlington County is now under a Flood Warning, as a slow-moving storm drenches areas south of Route 50.
The warning is in effect until 8:45 p.m. An inch or so of rain has fallen and flooding is imminent, the National Weather Service says.
A Flash Flood Watch, meanwhile, remains in effect until 6 a.m.
More from NWS:
BULLETIN – IMMEDIATE BROADCAST REQUESTED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
453 PM EDT THU AUG 6 2020
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A
* FLOOD WARNING FOR… SOUTHEASTERN ARLINGTON COUNTY IN NORTHERN VIRGINIA… SOUTHEASTERN FAIRFAX COUNTY IN NORTHERN VIRGINIA… THE CITY OF ALEXANDRIA IN NORTHERN VIRGINIA…
* UNTIL 845 PM EDT.
* AT 452 PM EDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN WHICH WILL CAUSE FLOODING. UP TO ONE INCH OF RAIN HAS ALREADY FALLEN. ADDITIONAL RAINFALL AMOUNTS OF UP TO ONE INCH ARE POSSIBLE.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE… ARLINGTON, ALEXANDRIA, SPRINGFIELD, FORT WASHINGTON, FORT HUNT, GROVETON, HUNTINGTON, FORT BELVOIR, CRYSTAL CITY, LINCOLNIA, LORTON, FRANCONIA, HYBLA VALLEY, NEWINGTON, WEST SPRINGFIELD, MOUNT VERNON, HAYFIELD AND MASON NECK.
TURN AROUND, DON’T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES.
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS, URBAN AREAS, HIGHWAYS, STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.