The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for... Northeastern Washington County in north central Maryland... Northwestern Frederick County in north central Maryland... * Until 215 PM EDT. * At 127 PM EDT, a severe thunderstorm was located over Paramount-Long Meadow, or near Greencastle, moving southeast at 25 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... Hagerstown, Thurmont, Emmitsburg, Robinwood, Fountainhead-Orchard Hills, Smithsburg, Paramount-Long Meadow, Long Meadow, Maugansville, Cavetown, Leitersburg, Sabillasville, Fort Ritchie, Chewsville, Ringgold, Middleburg, Utica, Rocky Ridge, Highfield and Graceham. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building.