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Detroit/Pontiac, MI Local Forecast Office

12NM N Port Sanilac MI

Marine Zone Forecast

Today

Northwest winds 5 to 10 knots veering to the north early in the afternoon, then increasing to 10 to 15 knots late in the afternoon. Partly cloudy in the morning becoming cloudy. A chance of showers. Waves 2 feet or less.

Tonight

North winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 30 knots in the late evening and overnight. Mostly cloudy. A slight chance of showers early in the evening. Waves 1 to 3 feet building to 5 to 7 feet in the late evening and overnight. Waves occasionally around 10 feet.

Friday

North winds 20 to 25 knots diminishing to 15 to 20 knots in the late morning and afternoon. Partly cloudy until late afternoon then clearing. Waves 5 to 7 feet. Waves occasionally around 10 feet.

Friday Night

North winds 15 to 20 knots becoming northwest 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.

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