National Weather Service Marine Forecast FZUS53 KDLH

FZUS53 KDLH 222317
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
517 PM CST Thu Jan 22 2026

For waters within five nautical miles of shore on Lake Superior.

Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum.

LSZ140-230500
Grand Portage to Grand Marais MN
517 PM CST Thu Jan 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots late in the night. Scattered flurries. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the night.

FRIDAY
Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots late in the morning, then decreasing to 20 knots early in the afternoon increasing to 25 knots late in the afternoon. Scattered snow showers in the morning, then scattered flurries in the afternoon. Waves 1 to 3 feet.

FRIDAY NIGHT
Northwest wind 10 to 15 knots. Gusts up to 25 knots. Partly cloudy. Waves 1 to 2 feet.

SATURDAY
Northwest wind 5 to 10 knots becoming west in the afternoon. Partly sunny. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


LSZ141-230500
Grand Marais to Taconite Harbor MN
517 PM CST Thu Jan 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind 20 to 25 knots. Gusts up to 30 knots increasing to 35 knots in the late evening and early morning, then decreasing to 30 knots late in the night. Scattered flurries. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the night.

FRIDAY
Northwest wind 15 to 20 knots. Gusts up to 30 knots decreasing to 20 knots. Scattered snow showers in the morning, then scattered flurries in the afternoon. Waves 1 to 2 feet.

FRIDAY NIGHT
Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots with gusts to around 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet.

SATURDAY
Northwest wind 5 to 10 knots becoming west in the afternoon. Partly sunny. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


LSZ142-230500
Taconite Harbor to Silver Bay Harbor MN
517 PM CST Thu Jan 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind 15 to 20 knots with gusts to around 30 knots. Scattered flurries through the night. Waves 1 to 3 feet subsiding to 1 to 2 feet after midnight.

FRIDAY
Northwest wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots in the afternoon. Scattered snow showers in the morning, then scattered flurries in the afternoon. Waves 1 to 2 feet.

FRIDAY NIGHT
Northwest wind 10 to 15 knots. Gusts up to 20 knots in the evening. Partly cloudy. Waves 1 foot or less.

SATURDAY
West wind 5 to 10 knots becoming southwest in the afternoon. Partly sunny. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


LSZ143-230500
Silver Bay Harbor to Two Harbors MN
517 PM CST Thu Jan 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind 20 to 25 knots. Gusts up to 30 knots decreasing to 25 knots after midnight. Scattered flurries through the night. Waves 1 to 3 feet subsiding to 1 to 2 feet after midnight.

FRIDAY
Northwest wind 15 to 20 knots. Gusts up to 25 knots. Scattered snow showers in the morning, then scattered flurries in the afternoon. Waves 1 to 2 feet.

FRIDAY NIGHT
Northwest wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Partly cloudy. Waves 1 foot or less.

SATURDAY
West wind 5 to 10 knots becoming southwest in the afternoon. Partly sunny. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


LSZ144-230500
Two Harbors to Duluth MN
517 PM CST Thu Jan 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind 20 to 25 knots with gusts to around 30 knots easing to 10 to 15 knots with gusts to around 25 knots late in the night. Scattered flurries through the night. Waves 1 to 3 feet subsiding to 1 to 2 feet after midnight.

FRIDAY
West wind 10 to 15 knots. Gusts up to 20 knots in the morning. Scattered flurries. Waves 1 to 2 feet.

FRIDAY NIGHT
West wind 10 to 15 knots. Partly cloudy. Waves 1 foot or less.

SATURDAY
West wind 5 to 10 knots becoming southwest late in the afternoon. Partly sunny. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


LSZ145-230500
Duluth MN to Port Wing WI
517 PM CST Thu Jan 22 2026

HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 4 AM CST FRIDAY

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind 20 to 25 knots. Scattered flurries in the evening. Scattered snow showers after midnight. Waves 3 to 5 feet. Waves occasionally to 7 feet.

FRIDAY
West wind 15 to 20 knots. Scattered snow showers in the morning. Scattered flurries in the afternoon. Waves 1 to 3 feet.

FRIDAY NIGHT
West wind 10 to 15 knots. Partly cloudy. Waves 1 to 2 feet.

SATURDAY
Southwest wind 5 to 10 knots. Partly sunny. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


LSZ146-230500
Port Wing to Sand Island WI
517 PM CST Thu Jan 22 2026

HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 4 AM CST FRIDAY

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind 20 to 25 knots. Gusts up to 30 knots early in the evening. Heavy freezing spray until early morning. Isolated snow showers early in the evening. Scattered snow showers in the late evening and overnight. Waves 4 to 6 feet. Waves occasionally to 8 feet.

FRIDAY
Northwest wind 15 to 20 knots with gusts to around 25 knots becoming west 10 to 15 knots with gusts to around 20 knots in the afternoon. Scattered snow showers. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon.

FRIDAY NIGHT
West wind 10 to 15 knots easing to 10 knots early in the morning. Scattered flurries in the evening. Waves 1 to 2 feet.

SATURDAY
Southwest wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


LSZ147-230500
Sand Island to Bayfield WI
517 PM CST Thu Jan 22 2026

HEAVY FREEZING SPRAY WARNING IN EFFECT UNTIL 4 AM CST FRIDAY

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind 20 to 25 knots. Heavy freezing spray. Scattered snow showers. Waves 4 to 7 feet. Waves occasionally to 9 feet.

FRIDAY
Northwest wind 15 to 20 knots. Gusts up to 25 knots early in the morning. Scattered snow showers. Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon.

FRIDAY NIGHT
West wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Scattered flurries in the evening. Waves 1 to 2 feet.

SATURDAY
Southwest wind 5 to 10 knots. Partly sunny. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


LSZ150-230500
Outer Apostle Islands Beyond 5 NM from Mainland
517 PM CST Thu Jan 22 2026

HEAVY FREEZING SPRAY WARNING IN EFFECT THROUGH FRIDAY MORNING

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind up to 30 knots. Heavy freezing spray through the night. Scattered snow showers until early morning. Numerous snow showers late in the night. Waves 6 to 9 feet. Waves occasionally to 12 feet.

FRIDAY
Northwest wind 20 to 25 knots. Numerous snow showers in the morning, then scattered snow showers in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally to 8 feet.

FRIDAY NIGHT
West wind 15 to 20 knots. Isolated snow showers in the evening. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight.

SATURDAY
Southwest wind 10 to 15 knots. Partly sunny. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


LSZ148-230500
Oak Point to Saxon Harbor WI
517 PM CST Thu Jan 22 2026

SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY AFTERNOON

TONIGHT
Northwest wind 20 to 25 knots. Scattered snow showers. Waves 1 foot or less.

FRIDAY
West wind 15 to 20 knots with gusts to around 25 knots easing to 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Scattered snow showers. Waves 1 foot or less.

FRIDAY NIGHT
Southwest wind 10 to 15 knots easing to 5 to 10 knots after midnight. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 foot or less.

SATURDAY
Southwest wind 5 to 10 knots. Partly sunny. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.


Graphical marine forecasts are available online at: weather.gov/greatlakes

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