Special Marine Warning Issued for Lake Michigan from Winthrop Harbor to Wilmette Harbor IL
This alert is no longer in effect.
NOAA issued it on April 14, 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.
The National Weather Service in Chicago has issued a Special Marine Warning for Lake Michigan areas from Winthrop Harbor to Wilmette Harbor until 3:45 AM CDT, with wind gusts up to 40 knots that could damage small craft.
Read this weather record in 30 seconds
- Record type
- Special Marine Warning
- Affected area
- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL
- Issued
- April 14, 2026
- Issuing authority
- NWS Chicago IL
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 from Winthrop Harbor to Wilmette Harbor IL.
Special Marine Warning in Lake Michigan
Alert Details
A Special Marine Warning has been issued by the National Weather Service (NWS) Chicago IL. This alert is effective from 1:42 AM CDT on April 14, 2026, until 3:45 AM CDT on April 14, 2026.
Affected Areas
The warning covers Winthrop Harbor to Wilmette Harbor IL, including Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake. Specific locations impacted include Winthrop Harbor and Waukegan Harbor.
What You Should Do
Move to safe harbor until hazardous weather passes.
Expected Conditions
Hazardous conditions include wind gusts to 40 knots from strong thunderstorms and outflow winds, located along a line extending from 13 nm west of Oak Creek to 15 nm north of McHenry, moving southeast at 45 knots.
Timeline
The alert is effective from 1:42 AM CDT on April 14, 2026, and ends at 3:45 AM CDT on April 14, 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 (918 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 14, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.