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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: 1102 PM EDT Tue May 12 2026		Print



Rest Of Tonight: Northwest wind 15 to 20 knots. Cloudy with a slight chance of rain showers. Waves 2 to 4 feet building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.

Wednesday: Northwest wind 10 to 15 knots. Mostly sunny. Waves subsiding to 1 to 2 feet.

Wednesday Night: Northwest wind less than 10 knots in the evening becoming variable. Mostly clear. Waves 1 to 2 feet.

Thursday: East wind less than 10 knots increasing to 10 to 20 knots in the afternoon. Mostly sunny. Waves building 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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