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Gale Warning
ActiveWinthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Northerly Island to Calumet Harbor IL
Starts
Ends
Issued
Severity
Moderate
Urgency
Expected
Certainty
Likely
Details
* WHAT...For the first Small Craft Advisory, north winds to 30 kt and significant waves to 7 ft occasionally to 9 ft expected. For the Gale Warning, north gales to 35 kt and significant waves to 14 ft occasionally to 18 ft expected. For the second Small Craft Advisory, north winds to 30 kt with a few gale force gusts to 35 kt and significant waves to 14 ft occasionally to 18 ft expected.
* WHERE...Winthrop Harbor to Calumet Harbor IL.
* WHEN...For the first Small Craft Advisory, from midnight tonight to 6 AM CST Thursday. For the Gale Warning, from 6 AM to 5 PM CST Thursday. For the second Small Craft Advisory, from 5 PM Thursday to 4 AM CST Saturday.
* IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
Instructions
Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.
Data from the National Weather Service
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