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A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 845 PM EDT. For the following areas. Tidal Potomac from Cobb Island MD to Smith Point VA. Tidal Potomac from Indian Head to Cobb Island MD. Tidal Potomac from Key Bridge to Indian Head MD. At 824 PM EDT, a surge of southwest wind was located 8 nm west of Deale, moving northeast at 30 knots. HAZARD. Wind gusts 34 knots or greater. SOURCE. Observed Wind. 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, Nanjemoy Creek, Smallwood State Park, Quantico, Reagan National Airport, Swan Point, Coltons Point, Gunston Hall, Saint George Island, Occoquan Bay, Popes Creek, Saint Clements Bay, Piney Point, Mouth Of The Potomac River, Maryland Point, Port Tobacco River, Colonial Beach, Leesylvania State Park and Cobb Island. HAIL. 0.00IN WIND. >34KTS