Special Marine Warning Issued for Lake Michigan Offshore Areas
This alert is no longer in effect.
NOAA issued it on July 4, 2026, 7 weeks 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 Milwaukee/Sullivan WI has issued a Special Marine Warning for Lake Michigan from Sheboygan WI to Winthrop Harbor IL due to strong thunderstorms until 5:30 PM CDT.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Lake Michigan
- Issued
- July 4, 2026
- Issuing authority
- NWS Milwaukee/Sullivan WI
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 7 weeks ago; use the issuing agency's live warning service for current conditions in Lake Michigan.
Alert Details
A Special Marine Warning has been issued by the National Weather Service Milwaukee/Sullivan WI. The alert is effective from 4:42 PM CDT on June 10, 2026, until 5:30 PM CDT on June 10, 2026.
Affected Areas
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore to Mid Lake; Lake Michigan from Port Washington to North Point Light WI 5NM offshore to Mid Lake; Lake Michigan from North Point Light to Wind Point WI 5NM offshore to Mid Lake; Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM offshore to Mid Lake.
What You Should Do
Move to safe harbor until hazardous weather passes.
Expected Conditions
At 4:42 PM CDT, strong thunderstorms were located along a line extending from 25 nm east of Sheboygan to 31 nm east of Winthrop Harbor, moving east at 40 knots. Hazards include wind gusts to nearly 50 knots and small hail.
Timeline
The warning is in effect until 5:30 PM CDT on June 10, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
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 (944 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 4, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.