Coastal Waters Forecast for Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays (LSZ247) (Text-Only)
NWS Forecast for: Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays (LSZ247)
Issued by: National Weather Service Marquette, MI
Last Update: 502 AM EDT Thu Sep 18 2025




Early This Morning: Northeast wind less than 10 knots. Mostly cloudy. Waves calm to 1 foot building to 1 to 2 feet.

Today: Northeast wind 10 to 15 knots. Mostly cloudy. A slight chance of showers late. Waves building to 2 to 3 feet, then subsiding to 1 to 2 feet.

Tonight: East wind 10 to 15 knots. Mostly cloudy. A slight chance of showers through late evening. Waves building to 2 to 3 feet.

Friday: East wind 10 to 20 knots with gusts up to 27 knots. Mostly cloudy. A slight chance of showers in the morning. Waves building to 2 to 4 feet.

Friday Night: East wind 10 to 15 knots with gusts up to 25 knots. Mostly cloudy. A chance of showers after midnight. Waves subsiding to 2 to 3 feet.







Zone Forecast: Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays (LSZ247)

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