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Detroit/Pontiac, MI Local Forecast Office

12NM N Port Sanilac MI

Marine Zone Forecast

Tonight

West winds 15 to 20 knots becoming northwest 20 to 25 knots early in the morning. Light snow showers in the evening, then partly cloudy with isolated light snow showers after midnight. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet.

Thursday

Northwest winds 20 to 25 knots with gusts to 30 knots becoming west 15 to 20 knots early in the afternoon. Partly cloudy with isolated light snow showers. Waves 4 to 6 feet. Waves occasionally around 7 feet.

Thursday Night

Southwest winds 10 to 15 knots increasing to 20 to 25 knots. Partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet after midnight.

Friday

Southwest winds 20 to 25 knots diminishing to 15 to 20 knots early in the afternoon. Partly cloudy. Waves 2 to 4 feet.

see lake huron open lake forecast for days 3 through 5.