(Updated at 4:40 p.m.) Arlington County is under a Severe Thunderstorm Warning through 5:30 p.m.
Strong storms are approaching the area from the southwest. Reagan National Airport is under a ground stop as a result of the approaching line of storms.
From the National Weather Service:
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR… THE DISTRICT OF COLUMBIA… SOUTHEASTERN MONTGOMERY COUNTY IN CENTRAL MARYLAND… HOWARD COUNTY IN CENTRAL MARYLAND… SOUTHEASTERN ARLINGTON COUNTY IN NORTHERN VIRGINIA… NORTHERN PRINCE GEORGES COUNTY IN CENTRAL MARYLAND… NORTHWESTERN ANNE ARUNDEL COUNTY IN CENTRAL MARYLAND…
* UNTIL 530 PM EDT
* AT 426 PM EDT… SEVERE THUNDERSTORMS WERE DETECTED ALONG A LINE EXTENDING FROM ROCKVILLE TO FORT TOTTEN TO 9 MILES SOUTHWEST OF CRYSTAL CITY… AND WERE MOVING NORTHEAST AT 25 MPH. THIS LINE OF STORMS IS CAPABLE OF PRODUCING HAIL UP TO THE SIZE OF QUARTERS AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.
* LOCATIONS IMPACTED INCLUDE… HOWARD UNIVERSITY… LANGLEY PARK… ASPEN HILL… ADELPHI… OLNEY… BYRD STADIUM… DOWNTOWN WASHINGTON… WHITE OAK… CRYSTAL CITY… HYATTSVILLE…
PRECAUTIONARY/PREPAREDNESS ACTIONS…
THIS IS A DANGEROUS LINE OF STORMS. IF YOU ARE IN ITS PATH… MOVE INDOORS TO A STURDY BUILDING AND STAY AWAY FROM WINDOWS. WHEN IT IS SAFE TO DO SO… REPORT SEVERE WEATHER TO LOCAL LAW ENFORCEMENT OR TO THE NATIONAL WEATHER SERVICE.