Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays Marine Forecast

NOAA marine forecast

Text forecast

Updated 5:00am EDT Oct 11, 2026

Small Craft Advisory In Effect Until 11 Am Edt This Morning

Early This Morning

Southwest wind 15 to 20 knots with gusts up to 33 knots. Clear. Waves 2 to 4 feet.

Today

Southwest wind 10 to 20 knots with gusts up to 31 knots backing south less than 10 knots with gusts up to 18 knots late.

Tonight

Northeast wind 10 to 20 knots. Cloudy. A slight chance of showers late. Waves building to 2 to 4 feet.

Monday

Northeast wind 15 to 20 knots with gusts up to 28 knots. Cloudy. A chance of showers in the morning, then a slight chance of showers in the afternoon. Waves building to 6 to 9 feet occasionally to 11 feet, then subsiding to 5 to 8 feet occasionally to 10 feet.

Monday Night

Northeast wind 15 to 20 knots. Showers. Waves subsiding to 3 to 5 feet occasionally to 7 feet.

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Interactive Mapbox map highlighting marine forecast zone LSZ247.