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Coastal Waters Forecast for Grand Portage to Grand Marais MN (LSZ140) (Text-Only)
NWS Forecast for: Grand Portage to Grand Marais MN (LSZ140)
Issued by: National Weather Service Duluth, MN
Last Update: 232 AM CST Mon Feb 16 2026		Print



Today: West wind 5 to 10 knots. Chance of light freezing rain and flurries early in the morning. Waves 1 foot or less.

Tonight: West wind 5 to 10 knots becoming northeast early in the morning. Partly cloudy. Waves 1 foot or less.

Tuesday: Northeast wind 20 to 25 knots with gales to around 35 knots. Partly sunny. Waves 1 foot or less. A gale warning may be needed.

Tuesday Night: Northeast wind up to 30 knots with storm force gusts to around 50 knots becoming east gales to 35 knots with storm force gusts to around 50 knots after midnight. Chance of snow and slight chance of light freezing rain in the evening, then snow likely after midnight. Waves 1 foot or less. A storm warning may be needed.

note...wave height forecasts are for ice free areas.






Zone Forecast: Grand Portage to Grand Marais MN (LSZ140)

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