Special Marine Warning Issued for Lake Michigan Near St. Joseph to South Haven
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NWS Grand Rapids has issued a Special Marine Warning for nearshore and open waters from St. Joseph to South Haven MI until 1:45 AM EDT.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Lake Michigan near St. Joseph to South Haven MI
- Issued
- September 5, 2026
- Issuing authority
- NWS Grand Rapids 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: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Special Marine Warning has been issued by the National Weather Service in Grand Rapids MI. The alert is effective from September 5, 2026 at 12:12 AM EDT until September 5, 2026 at 1:45 AM EDT.
Affected Areas
The warning covers nearshore and open waters from St Joseph to South Haven MI, including Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake. Locations impacted include South Haven Light, St. Joseph Light, and St. Joseph.
What You Should Do
Frequent lightning is occurring with this storm. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. Small craft could be damaged in briefly higher winds and suddenly higher waves.
Expected Conditions
At 12:10 AM EDT, a strong thunderstorm was located 9 nm southwest of South Haven Light, moving east at 20 knots. Additional strong thunderstorms were located at mid lake, roughly 40 miles west of the South Haven Light, also moving east at 20 knots. Hazards include wind gusts to 40 knots and small hail.
Timeline
The alert is in effect from September 5, 2026 at 12:12 AM EDT and expires September 5, 2026 at 1:45 AM EDT.
Original source: NOAA Official Notice ↗
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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 (1,171 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to September 5, 2026.
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