Weather Alert WatchOfficial-source alert index

NWS coastal zone LMZ777

Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake weather alerts

Marine alerts linked to this verified National Weather Service zone.

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Current answer

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No active alerts found

The latest successful NWS collection contained no active public alerts matched to Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake. Conditions can change.

How matching works
Official zone ID
LMZ777
Zone type
coastal
State
Marine or multi-state area
Metadata verified
Yes, from NWS

Context only

Recently ended alerts

Ended Official severity: Severe

Special Marine Warning for Wilmette Harbor to Northerly Island IL; Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake; Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake

Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake, Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake, Wilmette Harbor to Northerly Island IL

Ended

Zone matching is not a personal forecast

This page uses official NWS zone membership. For exact location matching, an alert must include official geometry or be linked to a verified zone geometry that contains the point.

How location matching works