The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... Northwestern Montgomery County in central Maryland... Southwestern Frederick County in north central Maryland... Northeastern Loudoun County in northern Virginia... Southeastern Jefferson County in the Panhandle of West Virginia... * Until 515 PM EDT. * At 422 PM EDT, severe thunderstorms were located along a line extending from 6 miles southwest of Brunswick to near Charles Town, moving east at 5 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles. * Locations impacted include... Charles Town, Poolesville, Brunswick, Ranson, Point Of Rocks, Corporation Of Ranson, Adamstown, Lovettsville, Barnesville, Hillsboro, Waterford, Neersville, Doubs, Park Mills, Lucketts, Dickerson, Beallsville, Tuscarora, Millville and Taylorstown. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. To report severe weather, contact your nearest law enforcement agency. They will send your report to the National Weather Service office in Sterling Virginia. By The National Weather Service, Sterling, Va.