The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... Southeastern Washington County in north central Maryland... West central Frederick County in north central Maryland... North central Loudoun County in northern Virginia... Northern Clarke County in northwestern Virginia... Jefferson County in the Panhandle of West Virginia... Southern Berkeley County in the Panhandle of West Virginia... * Until 430 PM EDT. * At 349 PM EDT, a severe thunderstorm was located near Charles Town, moving east at 30 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, Shepherdstown, Brunswick, Ranson, Boonsboro, Harpers Ferry, Kearneysville, Corporation Of Ranson, Lovettsville, Keedysville, Bolivar, Sharpsburg, Shenandoah Junction, Middleway, Rosemont, Rohrersville, Burkittsville, Gapland, Brownsville and Antietam. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room