SVRLWX The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... Southwestern Prince Georges County in central Maryland... Charles County in southern Maryland... Southeastern Fairfax County in northern Virginia... The southeastern City of Alexandria in northern Virginia... * Until 700 PM EDT. * At 608 PM EDT, severe thunderstorms were located along a line extending from Springfield to 7 miles east of Quantico to near King George, moving east at 20 mph. HAZARD...60 mph wind gusts. 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... Alexandria, Waldorf, Clinton, Springfield, Fort Washington, Fort Hunt, Groveton, Huntington, La Plata, Fort Belvoir, National Harbor, Port Tobacco River, Andrews Air Force Base, Camp Springs, Lorton, Franconia, Oxon Hill, Hybla Valley, Newington, and Friendly.