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🟡 Moderate

Gale Warning

Lake Huron from Harbor Beach to Port Sanilac 5NM Off Shore to US/Canadian border; Lake Huron from Port Sanilac to Port Huron 5NM Off Shore to US/Canadian border

Gale Warning issued December 17 at 3:42PM EST until December 19 at 7:00PM EST by NWS Detroit/Pontiac MI

Alert Description

* WHAT...Expect sustained winds up to 31 knots from the southwest with gusts up to 39 knots. The largest significant waves will be 9 feet with a potential maximum wave height of 13 feet. * WHERE...Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore and Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore. * WHEN...The maximum winds are expected around 12 PM EST Friday with the largest waves expected around 3 PM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.

Safety 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.

Time Information

Effective
Dec 18, 2025, 12:00 PM
Expires
Dec 18, 2025, 9:30 AM
Issued
Dec 17, 2025, 8:42 PM

Alert Details

Severity
Moderate
Urgency
Expected
Certainty
Likely
Category
Met

Issued By

NWS Detroit/Pontiac MI
National Weather Service

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