NWS Detroit/Pontiac MIMA.W 0072September 2, 2026
Special Marine Warning: St. Clair River, Detroit River and Lake St. Clair Open Lake (U.S. Portion)
The National Weather Service office in Detroit/Pontiac issued a special marine warning for St. Clair River, Detroit River and Lake St. Clair Open Lake (U.S. Portion), which was in force until 12:00 a.m. local time on September 3. It was the 72nd special marine warning the NWS office in Detroit/Pontiac issued in 2026.
ExpiredWarning
In force for 1.5 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Detroit/Pontiac MI
- Area
- St. Clair River, Detroit River and Lake St. Clair Open Lake (U.S. Portion)
- Level
- Warning
- Issued
- 10:32 p.m. EDT, September 2, 2026
- Expires
- 12:00 a.m. EDT, September 3, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KDTX MA.W 0072
- Official source
- National Weather Service: the notice at its source
NWS notices, September 2026The latest from the National Weather Service
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
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.
What the agency told people to do
Move to safe harbor until hazardous weather passes.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.