Special Marine Warning Issued for Lake St. Clair and St. Clair River
This alert is no longer in effect.
NOAA issued it on May 31, 2026, 2 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Detroit/Pontiac has issued a Special Marine Warning for severe thunderstorms with wind gusts to 50 knots and large hail affecting Lake St. Clair and the St. Clair River until 4:45 PM EDT.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Lake St. Clair Region
- Issued
- May 31, 2026
- Issuing authority
- NWS Detroit/Pontiac MI
Marine notices apply to named waters or shoreline zones. They may not describe conditions on land, even when the nearest place name is the same.
Record status: historical. It was issued 2 months ago; use the issuing agency's live warning service for current conditions in Lake St. Clair Region.
Alert Details
A Special Marine Warning (event code MAW) was issued by the National Weather Service Detroit/Pontiac MI. The alert is effective from May 19, 2026 at 3:16 PM EDT until May 19, 2026 at 4:45 PM EDT.
Affected Areas
The warning covers St. Clair River; Lake St. Clair Open Lake (U.S. Portion); and Port Sanilac to Port Huron MI.
What You Should Do
Small craft should avoid the area due to the risk of damage from higher winds and waves. Large hail may cause structural damage.
Expected Conditions
Severe thunderstorms were located along a line extending from 8 nm northwest of St. Clair to 6 nm west of New Baltimore to 11 nm northwest of St. Clair Shores, moving east at 40 knots. Hazards include wind gusts to nearly 50 knots and large hail.
Timeline
The alert is in effect from 3:16 PM EDT to 4:45 PM EDT on May 19, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (851 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 31, 2026.
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