National Weather Service Marine Forecast FZUS53 KDLH

FZUS53 KDLH 261416
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
916 AM CDT Thu Mar 26 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.

LSZ140-262200
Grand Portage to Grand Marais MN
916 AM CDT Thu Mar 26 2026

REST OF TODAY
Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the morning. Mostly cloudy. Waves 1 to 2 feet.

TONIGHT
North wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less.

FRIDAY
North wind 5 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Mostly cloudy. Waves 1 to 2 feet.

FRIDAY NIGHT
West wind 10 to 15 knots. Gusts up to 20 knots until early morning. Partly cloudy. Waves 1 to 2 feet.

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

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LSZ141-262200
Grand Marais to Taconite Harbor MN
916 AM CDT Thu Mar 26 2026

REST OF TODAY
Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet.

TONIGHT
North wind 5 to 10 knots. Partly cloudy. Waves 1 foot or less.

FRIDAY
North wind 5 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Partly sunny. Waves 1 to 2 feet.

FRIDAY NIGHT
Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west 5 to 10 knots with gusts to around 20 knots in the late evening and overnight. Mostly clear. Waves 1 to 2 feet.

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

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LSZ142-262200
Taconite Harbor to Silver Bay Harbor MN
916 AM CDT Thu Mar 26 2026

REST OF TODAY
Northeast wind 5 to 10 knots. Slight chance of light freezing rain and snow late in the morning. Waves 1 to 2 feet.

TONIGHT
North wind 5 to 10 knots. Partly cloudy. Waves 1 to 2 feet.

FRIDAY
North wind 5 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Partly sunny. Waves 1 foot or less.

FRIDAY NIGHT
West wind 10 to 15 knots. Gusts up to 20 knots in the evening. Mostly clear. Waves 1 foot or less.

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

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LSZ143-262200
Silver Bay Harbor to Two Harbors MN
916 AM CDT Thu Mar 26 2026

REST OF TODAY
Northeast wind 5 to 10 knots. Slight chance of light freezing rain and snow late in the morning. Waves 1 to 3 feet.

TONIGHT
Northeast wind 5 knots becoming north after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet.

FRIDAY
Northeast wind 5 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Slight chance of snow in the morning. Waves 1 foot or less.

FRIDAY NIGHT
West wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Mostly clear. Waves 1 foot or less.

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

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LSZ144-262200
Two Harbors to Duluth MN
916 AM CDT Thu Mar 26 2026

REST OF TODAY
Northeast wind 10 to 15 knots. Slight chance of light freezing rain and snow late in the morning. Waves 1 to 3 feet.

TONIGHT
Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet.

FRIDAY
Northeast wind 5 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Slight chance of snow showers in the morning. Waves 1 to 2 feet.

FRIDAY NIGHT
West wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots early in the morning. Mostly clear. Waves 1 to 2 feet.

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

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LSZ145-262200
Duluth MN to Port Wing WI
916 AM CDT Thu Mar 26 2026

REST OF TODAY
Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the morning. Slight chance of snow and light freezing rain late in the morning. Waves 1 to 3 feet.

TONIGHT
Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet.

FRIDAY
Northeast wind 5 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Slight chance of snow showers in the morning, then slight chance of snow in the afternoon. Waves 1 to 2 feet.

FRIDAY NIGHT
West wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots early in the morning. Mostly clear. Waves 1 to 2 feet.

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

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LSZ146-262200
Port Wing to Sand Island WI
916 AM CDT Thu Mar 26 2026

REST OF TODAY
Northeast wind 10 to 15 knots. Gusts up to 20 knots late in the morning. Slight chance of snow and light freezing rain late in the morning. Waves 1 to 3 feet.

TONIGHT
Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 to 2 feet.

FRIDAY
Northeast wind 5 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Slight chance of snow showers in the morning, then slight chance of snow in the afternoon. Waves 1 to 2 feet.

FRIDAY NIGHT
Northwest wind 10 to 15 knots with gusts to around 20 knots becoming west early in the morning. Mostly clear. Waves 1 to 2 feet.

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

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LSZ147-262200
Sand Island to Bayfield WI
916 AM CDT Thu Mar 26 2026

REST OF TODAY
Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and early afternoon. Slight chance of snow and light freezing rain late in the morning. Waves 1 to 3 feet.

TONIGHT
Northeast wind 5 to 10 knots. Slight chance of snow showers after midnight. Waves 1 to 2 feet.

FRIDAY
Northeast wind 5 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Slight chance of snow showers in the morning. Slight chance of snow in the afternoon. Waves 1 to 2 feet.

FRIDAY NIGHT
West wind 10 to 15 knots. Gusts up to 20 knots until early morning. Mostly clear. Waves 1 to 2 feet.

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

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LSZ150-262200
Outer Apostle Islands Beyond 5 NM from Mainland
916 AM CDT Thu Mar 26 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON

REST OF TODAY
Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and early afternoon. Slight chance of snow late in the morning. Waves 3 to 5 feet.

TONIGHT
Northeast wind 5 to 10 knots. Slight chance of snow showers after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight.

FRIDAY
Northeast wind 5 to 10 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Slight chance of snow showers in the morning. Slight chance of snow in the afternoon. Waves 1 to 2 feet.

FRIDAY NIGHT
Northwest wind 15 to 20 knots. Partly cloudy. Waves 1 to 3 feet.

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

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LSZ148-262200
Oak Point to Saxon Harbor WI
916 AM CDT Thu Mar 26 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON

REST OF TODAY
Northeast wind 10 to 15 knots. Gusts up to 20 knots in the late morning and early afternoon. Slight chance of snow late in the morning. Waves 3 to 5 feet.

TONIGHT
Northeast wind 5 to 10 knots. Slight chance of snow showers after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight.

FRIDAY
Northeast wind 5 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late morning and afternoon. Slight chance of snow showers in the morning, then slight chance of snow in the afternoon. Waves 1 to 2 feet.

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

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

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

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