Severe · Special Marine WarningThis alert has expired. It is kept for reference.
Special Marine Warning issued September 2 at 7:07PM EDT until September 2
Affecting Port Sanilac to Port Huron MI; Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border
In effect until: Sep 2, 2026, 11:45 PM
Port Sanilac to Port Huron MI; Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border
Likely impact; effects through 11:45 PM.
Boaters should seek safe harbor immediately until this storm passes. Wind gusts to nearly 50 knots, large hail, high waves, dangerous lightning, and heavy rain are possible with this storm.
Read the original bulletin (official text)
For the following areas... Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border... Port Sanilac to Port Huron MI... At 707 PM EDT, a severe thunderstorm was located near Lakeport, moving southeast at 35 knots. HAZARD...Wind gusts to nearly 50 knots and large hail. SOURCE...Radar indicated. 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 remain over mainly open waters.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™