Coastal Waters Forecast for Munising to Grand Marais MI (LSZ250) (Text-Only)
NWS Forecast for: Munising to Grand Marais MI (LSZ250)
Issued by: National Weather Service Marquette, MI
Last Update: 1101 AM EDT Thu Apr 2 2026
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Rest Of Today: East wind 20 to 25 knots with gale force gusts up to 34 knots. Snow possibly mixed with freezing rain and sleet by late morning, then sleet possibly mixed with rain, freezing rain and snow late. Waves 3 to 5 feet occasionally to 7 feet building to 4 to 7 feet occasionally to 9 feet.

Tonight: East wind 20 to 25 knots backing north 15 to 25 knots late. Gusts up to 32 knots. Rain possibly mixed with sleet through late evening, then a chance of rain by midnight. A slight chance of rain late. Waves subsiding to 3 to 6 feet occasionally to 8 feet.

Friday: North wind 15 to 25 knots becoming 15 to 20 knots in the afternoon. Mostly cloudy. Waves building to 4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet occasionally to 7 feet.

Friday Night: Northeast wind 15 to 20 knots veering east after midnight. Gusts up to 29 knots. Mostly cloudy. A slight chance of rain in the evening, then freezing rain possibly mixed with rain after midnight. Waves subsiding to 2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.







Zone Forecast: Munising to Grand Marais MI (LSZ250)

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