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30NM SE Grand Portage MN

Marine Zone Forecast

Rest Of Tonight

South winds 5 to 15 knots veering southwest after midnight. A slight chance of showers by midnight. Waves calm to 2 feet.

Sunday

Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Sunday Night

South winds 5 to 15 knots diminishing to less than 10 knots after midnight, then becoming southwest 5 to 15 knots late. Waves calm to 2 feet.

Monday

Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Monday Night

Southwest winds 5 to 15 knots. Waves calm to 2 feet.

Tuesday

Southwest winds 10 to 20 knots. A chance of showers. Waves building to 1 to 3 feet.

Tuesday Night

Northwest winds 15 to 25 knots becoming north 20 to 30 knots after midnight. Showers and a chance of thunderstorms. Waves building to 4 to 7 feet occasionally to 9 feet.

Wednesday

North gales to 35 knots diminishing to 20 to 30 knots. A chance of showers. Waves building to 5 to 8 feet occasionally to 10 feet, then subsiding to 3 to 5 feet occasionally to 7 feet.

Thursday

Northwest winds 15 to 25 knots diminishing to 10 to 20 knots. A chance of showers. Waves subsiding to 1 to 3 feet, then building to 2 to 4 feet.