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.

* 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.