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Special Marine Warning

Active

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

Status In Progress Started 14 minutes ago
Ends
Issued
Severity Severe
Urgency Immediate
Certainty Likely

Details

For the following areas...
Open Waters from Winthrop Harbor to Michigan City out to Mid Lake...
At 429 AM CDT, a severe thunderstorm was located 18 nm east of Wilmette Harbor, moving southeast at 25 knots.
HAZARD...Wind gusts 34 knots or greater and large hail.
SOURCE...Radar indicated.
IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Large hail could result in structural damage.
The severe thunderstorm will remain over mainly open waters.
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Data from the National Weather Service
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