Special Marine Warning for Lake Michigan Regions
This alert is no longer in effect.
NOAA issued it on April 16, 2026, 4 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.
A Special Marine Warning has been issued for parts of Lake Michigan due to severe thunderstorms that could produce waterspouts and wind gusts up to 40 knots until 10:45 PM CDT.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Lake Michigan
- Issued
- April 16, 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 4 months 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 (NWS) Milwaukee/Sullivan WI. It is effective from 8:08 PM CDT on April 15, 2026, until 10:45 PM CDT on the same day.
Affected Areas
The warning covers the following areas: North Point Light to Wind Point WI; Wind Point WI to Winthrop Harbor IL; Lake Michigan from North Point Light to Wind Point WI 5NM offshore to Mid Lake; and Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM offshore to Mid Lake.
What You Should Do
Boaters and mariners are advised to avoid the affected waters, as waterspouts can overturn boats and create hazardous seas, potentially damaging small craft in high winds.
Expected Conditions
Severe thunderstorms capable of producing waterspouts, wind gusts to 40 knots, and small hail are expected over mainly open waters.
Timeline
The alert is effective from 8:08 PM CDT on April 15, 2026, and will expire at 10:45 PM CDT on April 15, 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 (977 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 16, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.