THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * TORNADO WARNING FOR... THE DISTRICT OF COLUMBIA... SOUTHEASTERN ARLINGTON COUNTY IN NORTHERN VIRGINIA... WESTERN PRINCE GEORGES COUNTY IN CENTRAL MARYLAND... EASTERN CITY OF ALEXANDRIA IN NORTHERN VIRGINIA... EASTERN FAIRFAX COUNTY IN NORTHERN VIRGINIA... * UNTIL 100 PM EDT * AT 1223 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS NEAR HUNTINGTON...AND WAS MOVING NORTH AT 35 MPH. * LOCATIONS IMPACTED INCLUDE... REAGAN NATIONAL AIRPORT... CRYSTAL CITY... US CAPITOL... NATIONALS PARK... ANACOSTIA... CORAL HILLS... GALLAUDET UNIVERSITY... DOWNTOWN WASHINGTON... HOWARD UNIVERSITY... RFK STADIUM... PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING AND AVOID WINDOWS. IF OUTDOORS OR IN A MOBILE HOME OR VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST RESORT...EITHER PARK AND STAY IN YOUR VEHICLE...OR ABANDON YOUR VEHICLE AND LAY FLAT IN A LOW SPOT.