(Updated at 5:30 p.m.) Flooding has been reported in parts of Arlington, Alexandria, D.C. and Montgomery County after a period of very heavy rain.
In Arlington, the deluge left high water on Route 110, prompting police to close the highway between Rosslyn and the Pentagon. Standing water was also reported on Columbia Pike near the Pentagon.
If you are NB on Rt 1 in Crystal City you will be forced to exit onto NB I-395 due to the usual Rt 110 flooding. Both @ArlingtonVaFD & @ArlingtonVaPD responded to the flooding. Heavy rain has stopped. @ARLnowDOTcom @WTOPtraffic pic.twitter.com/apm5NwcubH
— Dave Statter (@STATter911) September 10, 2020
Flooding was also reported on the GW Parkway, near the airport.
⚠️ Due to reports of flooding on the George Washington Memorial Parkway near the airport Thursday afternoon, use Route 1 from Crystal City for airport access and expect roadway delays in the area
— Reagan Airport (@Reagan_Airport) September 10, 2020
As of 5 p.m., both Route 110 and the GW Parkway were reported to be back open.
The Flash Flood Warning was issued earlier this afternoon, and was in effect until 4:30 p.m. More from the National Weather Service:
140 PM EDT THU SEP 10 2020
…FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 430 PM EDT THIS AFTERNOON FOR SOUTHEASTERN MONTGOMERY, NORTHWESTERN PRINCE GEORGES, SOUTHEASTERN ARLINGTON AND SOUTHEASTERN FAIRFAX COUNTIES AND THE DISTRICT OF COLUMBIA AND THE CITY OF ALEXANDRIA…
AT 140 PM EDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. BETWEEN 1 AND 2 INCHES OF RAIN HAVE FALLEN. FLASH FLOODING IS ONGOING OR EXPECTED TO BEGIN SHORTLY.
HAZARD…LIFE THREATENING FLASH FLOODING. THUNDERSTORMS PRODUCING FLASH FLOODING.
SOURCE…DOPPLER RADAR.
IMPACT…LIFE THREATENING FLASH FLOODING OF CREEKS AND STREAMS, URBAN AREAS, HIGHWAYS, STREETS AND UNDERPASSES.
ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE WARNED AREA.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
TURN AROUND, DON’T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES.
Flash Flood Warning including Washington DC, Arlington VA, Alexandria VA until 4:30 PM EDT pic.twitter.com/mV92zVtRnX
— NWS Baltimore-Washington (@NWS_BaltWash) September 10, 2020