Severe · Special Marine WarningThis alert has expired. It is kept for reference.
Special Marine Warning issued September 4 at 12:55AM EDT until September 4
Affecting 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, 6:00 AM
Tidal Potomac from Indian Head to Cobb Island MD; Tidal Potomac from Cobb Island MD to Smith Point VA
Likely impact; effects through 6:00 AM.
Move to safe harbor until hazardous weather passes.
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... * Until 200 AM EDT. * At 1254 AM EDT, multiple areas of strong thunderstorms were located along a line extending from Cuckold Creek to 8 nm south of Fairview Beach, moving southeast at 45 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... Yeocomico River, Breton Bay, Saint Clements Bay, Piney Point, Mouth Of The Potomac River, Maryland Point, Nanjemoy Creek, Port Tobacco River, Colonial Beach, Cobb Island, Point Lookout, Tall Timbers, Swan Point, Coltons Point, Mathias Point, U.S. 301 Nice Memorial Bridge, Saint George Island, Wicomico River, White Point Beach, and Popes Creek.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™