SMWLWX The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for. Tidal Potomac from Key Bridge to Indian Head MD. * Until 945 PM EDT. * At 822 PM EDT, a severe thunderstorm capable of producing waterspouts was located over Alexandria, moving east at 10 knots. HAZARD. Wind gusts 34 knots or greater and waterspouts. SOURCE. Radar indicated. IMPACT. Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. Waterspouts can easily overturn boats and create locally hazardous seas. * Locations impacted include. Fort Washington, Tidal Basin, Reagan National Airport, Woodrow Wilson Bridge, Key Bridge, Fort Hunt, National Harbor, and Alexandria.

SVRLWX The National Weather Service in Sterling Virginia has issued a * Severe Thunderstorm Warning for. The southeastern District of Columbia. West central Prince Georges County in central Maryland. Southeastern Arlington County in northern Virginia. East central Fairfax County in northern Virginia. The City of Alexandria in northern Virginia. * Until 915 PM EDT. * At 824 PM EDT, a severe thunderstorm was located over Lincolnia, or over Springfield, moving east at 15 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. Arlington, Alexandria, Annandale, Clinton, Springfield, Fort Washington, Groveton, Huntington, Coral Hills, National Harbor, Reagan National Airport, Crystal City, RFK Stadium, Nationals Park, Andrews Air Force Base, Lincolnia, Camp Springs, Franconia, Oxon Hill, and Walker Mill.

At 840 PM EDT, a severe thunderstorm was located over Alexandria, moving east at 15 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. Arlington, Alexandria, Clinton, Huntington, Coral Hills, National Harbor, Reagan National Airport, RFK Stadium, Nationals Park, Andrews Air Force Base, Camp Springs, Oxon Hill, Walker Mill, Temple Hills, Cheverly, Marlow Heights, Seat Pleasant, Anacostia, Kenilworth, and District Heights.

FFWLWX The National Weather Service in Sterling Virginia has issued a * Flash Flood Warning for. Northeastern Washington County in north central Maryland. Northeastern Berkeley County in the panhandle of West Virginia. * Until 1145 PM EDT. * At 837 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD. Flash flooding caused by thunderstorms. SOURCE. Radar. IMPACT. Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include. Hagerstown. Municipal Stadium. Robinwood. Fountainhead-Orchard Hills. Paramount-Long Meadow. Wilson-Conococheague. Williamsport. Saint James. Long Meadow. Halfway. Maugansville. Funkstown. Leitersburg. Clear Spring. Chewsville. Big Spring. Big Pool. Middleburg. Warrenton. Bridgeport.