Severe · Special Marine WarningActive alert
Special Marine Warning issued September 3 at 10:54PM EDT until September 4
Affecting Tidal Potomac from Key Bridge to Indian Head MD; Tidal Potomac from Indian Head to Cobb Island MD; Tidal Potomac from Cobb Island MD to Smith Point VA
In effect until: Sep 4, 2026, 5:00 AM
Tidal Potomac from Key Bridge to Indian Head MD; Tidal Potomac from Indian Head to Cobb Island MD; Tidal Potomac from Cobb Island MD to Smith Point VA
Likely impact; effects through 5:00 AM.
Move to safe harbor immediately as gusty winds and high waves are expected.
Read the original bulletin (official text)
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... Tidal Potomac from Key Bridge to Indian Head MD... * Until 100 AM EDT. * At 1053 PM EDT, strong thunderstorms were located along a line extending from 15 nm northwest of Leesylvania State Park to 7 nm southwest of Aquia Creek, moving northeast at 30 knots. HAZARD...Wind gusts 34 knots or greater. 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, Nanjemoy Creek, Quantico, Swan Point, Coltons Point, Gunston Hall, Occoquan Bay, Popes Creek, Saint Clements Bay, Maryland Point, Port Tobacco River, Colonial Beach, Leesylvania State Park, Cobb Island, Mathias Point, U.S. 301 Nice Memorial Bridge, Mason Neck State Park, Woodrow Wilson Bridge, and Wicomico River.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™