Severe · Special Marine WarningThis alert has expired. It is kept for reference.
Special Marine Warning issued September 2 at 10:32PM EDT until September 3
Affecting St. Clair River; Detroit River; Lake St. Clair Open Lake (U.S. Portion)
In effect until: Sep 3, 2026, 4:00 AM
St. Clair River; Detroit River; Lake St. Clair Open Lake (U.S. Portion)
Likely impact; effects through 4:00 AM.
Move to safe harbor until hazardous weather passes.
Affected areas
Detroit
Read the original bulletin (official text)
SMWDTX The National Weather Service in Detroit/Pontiac has issued a * Special Marine Warning for... Detroit River... Lake St. Clair Open Lake (U.S. Portion)... St. Clair River... * Until midnight EDT. * At 1030 PM EDT, a severe thunderstorm was located 38 nm northwest of The Ambassador Bridge, moving east at 45 knots. There is additional strong thunderstorm development behind this initial thunderstorm that may impact Lake St Clair through Midnight. HAZARD...Wind gusts to nearly 50 knots and large hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage. * The severe thunderstorm will be near... St. Clair Shores around 1120 PM EDT. Grosse Pointe around 1125 PM EDT.
Free. In your language.
Get the next alert for your area before it matters.
Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™