Severe · Special Marine WarningThis alert has expired. It is kept for reference.
Special Marine Warning issued September 3 at 11:18AM EDT until September 3
Affecting St. Clair River; Lake St. Clair Open Lake (U.S. Portion)
In effect until: Sep 3, 2026, 4:45 PM
St. Clair River; Lake St. Clair Open Lake (U.S. Portion)
Likely impact; effects through 4:45 PM.
Move to safe harbor immediately as gusty winds and high waves are expected.
Read the original bulletin (official text)
SMWDTX The National Weather Service in Detroit/Pontiac has issued a * Special Marine Warning for... Lake St. Clair Open Lake (U.S. Portion)... St. Clair River... * Until 1245 PM EDT. * At 1117 AM EDT, strong thunderstorms were located along a line extending from 23 nm northwest of New Baltimore to 23 nm northwest of St. Clair Shores to 25 nm northwest of The Ambassador Bridge, moving east at 35 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will be near... New Baltimore around 1145 AM EDT. St. Clair Shores around 1150 AM EDT. Mt Clemens Harbor Of Refuge and Metro Beach Metropark Marina around 1155 AM EDT. St Clair Flats Old Channel Light around 1200 PM EDT. Algonac around 1205 PM EDT.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™