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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 Small Craft Advisory, west winds to 30 kt with a few gale force gusts to 35 kt expected. For the Gale Warning, northerly gales to 40 kt and significant waves to 14 ft occasionally to 18 ft expected.
* WHERE...Winthrop Harbor to Calumet Harbor IL.
* WHEN...For the Small Craft Advisory, until 1 PM CDT Friday. For the Gale Warning, from 1 PM Friday to 1 AM CDT Saturday.
* IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
* ADDITIONAL DETAILS...Locally higher winds may occur near lake effect rain showers Friday afternoon.
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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