National Weather Service Marine Forecast FZUS53 KDLH

FZUS53 KDLH 110418
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1117 PM CDT Sat Oct 10 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.

LSZ140-111000
Grand Portage to Grand Marais MN
1117 PM CDT Sat Oct 10 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY

REST OF TONIGHT
South wind 5 knots with gusts to around 30 knots becoming southwest 15 to 20 knots with gusts to around 30 knots after midnight. Mostly clear. Waves 3 to 5 feet.

SUNDAY
Southwest wind 10 to 15 knots with gusts to around 25 knots becoming west 5 to 10 knots late in the afternoon. Sunny in the morning then becoming partly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. A small craft advisory may be needed.

SUNDAY NIGHT
Northeast wind 20 to 25 knots with gales to around 35 knots. Slight chance of rain showers in the evening, then chance of rain showers after midnight. Waves 1 to 2 feet building to 4 to 6 feet in the late evening and overnight. Waves occasionally to 8 feet. A gale warning may be needed.

MONDAY
Northeast wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Rain showers likely in the morning, then chance of rain showers in the afternoon. Waves 4 to 7 feet. Waves occasionally to 9 feet. A gale warning may be needed.

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LSZ141-111000
Grand Marais to Taconite Harbor MN
1117 PM CDT Sat Oct 10 2026

REST OF TONIGHT
East wind 5 knots with gusts to around 25 knots becoming south with gusts to around 25 knots after midnight. Mostly clear. Waves 1 to 3 feet.

SUNDAY
Southwest wind 5 to 10 knots becoming west late in the afternoon. Sunny in the morning then becoming partly sunny. Waves 1 to 3 feet.

SUNDAY NIGHT
Northeast wind 5 knots rising to 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Slight chance of rain showers in the evening, then chance of rain showers after midnight. Waves 1 to 2 feet building to 3 to 5 feet after midnight. A small craft advisory may be needed.

MONDAY
Northeast wind 15 to 20 knots with gusts to around 30 knots. Chance of rain showers. Waves 3 to 5 feet. Waves occasionally to 7 feet. A small craft advisory may be needed.

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LSZ142-111000
Taconite Harbor to Silver Bay Harbor MN
1117 PM CDT Sat Oct 10 2026

REST OF TONIGHT
South wind 5 to 10 knots. Gusts up to 30 knots decreasing to 20 knots. Mostly clear. Waves 1 to 2 feet.

SUNDAY
Southwest wind 5 to 10 knots easing to 5 knots late in the afternoon. Sunny in the morning then becoming partly sunny. Waves 1 to 2 feet.

SUNDAY NIGHT
Northeast wind 15 to 20 knots with gusts to around 30 knots. Slight chance of rain showers after midnight. Waves 1 to 3 feet building to 3 to 5 feet early in the morning. Waves occasionally to 7 feet. A small craft advisory may be needed.

MONDAY
Northeast wind 15 to 20 knots. Gusts up to 35 knots decreasing to 30 knots in the afternoon. Chance of rain showers. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed.

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LSZ143-111000
Silver Bay Harbor to Two Harbors MN
1117 PM CDT Sat Oct 10 2026

REST OF TONIGHT
Southwest wind 5 knots with gusts to around 30 knots rising to 10 to 15 knots with gusts to around 30 knots after midnight. Mostly clear. Waves 1 to 3 feet.

SUNDAY
Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Sunny in the morning then becoming partly sunny. Waves 1 to 2 feet.

SUNDAY NIGHT
Northeast wind 5 knots rising to 15 to 20 knots with gusts to around 30 knots in the late evening and overnight. Slight chance of rain showers after midnight. Waves 1 to 2 feet building to 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

MONDAY
Northeast wind 15 to 20 knots with gales to around 35 knots. Chance of rain showers. Waves 4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be needed.

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LSZ144-111000
Two Harbors to Duluth MN
1117 PM CDT Sat Oct 10 2026

REST OF TONIGHT
West wind 5 knots with gales to around 35 knots becoming southwest 10 to 15 knots with gusts to around 30 knots after midnight. Mostly clear. Waves 1 to 3 feet.

SUNDAY
Southwest wind 5 to 10 knots. Gusts up to 20 knots early in the morning. Sunny in the morning then becoming partly sunny. Waves 1 to 2 feet.

SUNDAY NIGHT
Northeast wind 5 knots rising to 20 to 25 knots with gusts to around 30 knots. Cloudy. Waves 1 to 2 feet building to 4 to 7 feet after midnight. Waves occasionally to 9 feet. A small craft advisory may be needed.

MONDAY
Northeast wind 20 to 25 knots easing to 15 to 20 knots in the afternoon. Gusts up to 35 knots. Slight chance of rain showers in the morning. Chance of rain showers in the afternoon. Waves 4 to 7 feet. Waves occasionally to 9 feet. A gale warning may be needed.

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LSZ145-111000
Duluth MN to Port Wing WI
1117 PM CDT Sat Oct 10 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY

REST OF TONIGHT
South wind 5 to 10 knots with gales to around 35 knots becoming southwest 15 to 20 knots with gales to around 35 knots after midnight. Mostly clear. Waves 1 to 2 feet.

SUNDAY
Southwest wind 10 to 15 knots with gusts to around 25 knots becoming west 5 knots early in the afternoon, then becoming north late in the afternoon. Mostly sunny. Waves 1 foot or less.

SUNDAY NIGHT
Northeast wind 5 knots rising to 20 to 25 knots with gales to around 35 knots. Cloudy. Waves 1 to 2 feet building to 4 to 7 feet after midnight. Waves occasionally to 9 feet. A gale warning may be needed.

MONDAY
Northeast wind 20 to 25 knots. Gusts up to 35 knots decreasing to 30 knots late in the afternoon. Slight chance of rain showers in the morning. Chance of rain showers in the afternoon. Waves 4 to 7 feet. Waves occasionally to 9 feet. A gale warning may be needed.

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LSZ146-111000
Port Wing to Sand Island WI
1117 PM CDT Sat Oct 10 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY

REST OF TONIGHT
South wind 10 to 15 knots. Gusts up to 35 knots decreasing to 30 knots after midnight. Mostly clear. Waves 1 to 3 feet.

SUNDAY
Southwest wind 10 to 15 knots with gusts to around 25 knots becoming west 5 knots early in the afternoon, then becoming southeast late in the afternoon. Sunny. Waves 1 to 2 feet.

SUNDAY NIGHT
East wind 5 to 10 knots with gusts to around 20 knots becoming northeast 20 to 25 knots with gusts to around 30 knots after midnight. Cloudy. Waves 1 foot or less building to 4 to 7 feet. Waves occasionally to 9 feet. A small craft advisory may be needed.

MONDAY
Northeast wind 20 to 25 knots with gales to around 35 knots. Chance of rain showers. Waves 4 to 7 feet. Waves occasionally to 9 feet. A gale warning may be needed.

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LSZ147-111000
Sand Island to Bayfield WI
1117 PM CDT Sat Oct 10 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY

REST OF TONIGHT
South wind 10 to 15 knots. Gusts up to 30 knots decreasing to 25 knots toward daybreak. Mostly clear. Waves 1 to 2 feet.

SUNDAY
Southwest wind 5 to 10 knots with gusts to around 20 knots becoming northwest late in the afternoon. Sunny. Waves 1 foot or less.

SUNDAY NIGHT
Northeast wind 5 to 10 knots with gusts to around 20 knots rising to 20 to 25 knots with gales to around 35 knots after midnight. Slight chance of rain showers after midnight. Waves 1 foot or less building to 4 to 7 feet. Waves occasionally to 9 feet. A gale warning may be needed.

MONDAY
Northeast wind up to 30 knots with gales to around 35 knots easing to 15 to 20 knots with gales to around 35 knots late in the afternoon. Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 4 to 7 feet. Waves occasionally to 9 feet. A gale warning may be needed.

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LSZ150-111000
Outer Apostle Islands Beyond 5 NM from Mainland
1117 PM CDT Sat Oct 10 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY

REST OF TONIGHT
South wind 15 to 20 knots. Gusts up to 30 knots decreasing to 25 knots toward daybreak. Mostly clear. Waves 2 to 4 feet.

SUNDAY
Southwest wind 10 to 15 knots with gusts to around 20 knots becoming northwest 5 knots late in the afternoon. Sunny. Waves 1 to 3 feet.

SUNDAY NIGHT
Northeast wind 5 knots rising to 20 to 25 knots with gales to around 35 knots in the late evening and overnight. Slight chance of rain showers after midnight. Waves 1 to 2 feet building to 5 to 8 feet. Waves occasionally to 10 feet. A gale warning may be needed.

MONDAY
Northeast wind up to 30 knots. Gusts up to 35 knots increasing to 40 knots late in the morning, then decreasing to 35 knots in the afternoon. Chance of rain showers in the morning, then slight chance of rain showers in the afternoon. Waves 6 to 9 feet. Waves occasionally to 12 feet. A gale warning may be needed.

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LSZ121-111000
Chequamegon Bay-Bayfield to Oak Point WI
1117 PM CDT Sat Oct 10 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY

REST OF TONIGHT
South wind 10 to 15 knots. Gusts up to 30 knots decreasing to 25 knots toward daybreak. Mostly clear. Waves 1 to 2 feet.

SUNDAY
Southwest wind 5 to 10 knots with gusts to around 25 knots becoming west late in the afternoon. Sunny. Waves 1 foot or less.

SUNDAY NIGHT
Northeast wind 10 to 15 knots with gusts to around 25 knots. Mostly cloudy. Waves 1 foot or less building to 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

MONDAY
Northeast wind 15 to 20 knots. Gusts up to 25 knots increasing to 30 knots in the late morning and afternoon. Slight chance of rain showers. Waves 6 to 9 feet. Waves occasionally to 12 feet. A small craft advisory may be needed.

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LSZ148-111000
Oak Point to Saxon Harbor WI
1117 PM CDT Sat Oct 10 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 7 AM CDT SUNDAY

REST OF TONIGHT
South wind 5 knots rising to 10 to 15 knots after midnight. Gusts up to 30 knots. Mostly clear. Waves 1 to 2 feet.

SUNDAY
South wind 10 to 15 knots with gusts to around 25 knots becoming southwest 5 to 10 knots with gusts to around 25 knots in the late morning and early afternoon, then becoming northwest late in the afternoon. Sunny. Waves 1 to 2 feet.

SUNDAY NIGHT
Northeast wind 15 to 20 knots with gusts to around 25 knots. Mostly cloudy. Waves 1 foot or less building to 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

MONDAY
Northeast wind 15 to 20 knots with gusts to around 30 knots. Slight chance of rain showers. Waves 6 to 9 feet. Waves occasionally to 12 feet. A small craft advisory may be needed.

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

WFO DLH