At 1222 AM EDT, Doppler radar was tracking a strong thunderstorm over Spotsylvania, or 8 miles southwest of Fredericksburg, moving east at 45 mph. HAZARD. Wind gusts up to 40 mph and penny size hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to outdoor objects is possible. This strong thunderstorm will be near. Port Royal and Fort Walker around 1245 AM EDT. Other locations impacted by this storm include Rappahannock Academy, Sparta, Villboro, Nancy Wrights Corner, Guinea, Corbin, and Woodford.

SMWLWX The National Weather Service in Sterling Virginia has issued a * Special Marine Warning for. Tidal Potomac from Cobb Island MD to Smith Point VA. Tidal Potomac from Indian Head to Cobb Island MD. * Until 115 AM EDT. * At 1219 AM EDT, strong thunderstorms were located along a line extending from near Quantico to 20 nm southwest of Potomac Creek, moving east at 45 knots. HAZARD. Wind gusts 34 knots or greater and small hail. SOURCE. Radar indicated. IMPACT. Boaters in small craft could be thrown overboard by suddenly higher winds and waves capsizing their vessel. * Locations impacted include. Potomac Creek, Breton Bay, Widewater, Saint Clements Bay, Maryland Point, Nanjemoy Creek, Port Tobacco River, Leesylvania State Park, Quantico, Cobb Island, Swan Point, Coltons Point, Nomini Bay, Mathias Point, U.S. 301 Nice Memorial Bridge, Wicomico River, Popes Creek, Brent Point, Smallwood State Park, and Westmoreland State Park.

The areas affected include. Tidal Potomac from Key Bridge to Indian Head MD. At 1216 AM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from near Key Bridge to near Mason Neck State Park, moving east at 35 knots. Locations impacted include. Fort Washington, Tidal Basin, Reagan National Airport, Gunston Hall, Woodrow Wilson Bridge, Key Bridge, Fort Hunt, National Harbor, and Alexandria.

* WHAT. East winds 10 to 15 kts gusts up to 25 kts expected. * WHERE. Chesapeake Bay from Pooles Island MD to Smith Point VA, Tidal Potomac from Cobb Island MD to Smith Point VA, Choptank River to Cambridge MD and the Little Choptank River, and Tangier Sound and the inland waters surrounding Bloodsworth Island. * WHEN. Until 4 AM EDT Friday. * IMPACTS. Conditions will be hazardous to small craft.