National Weather Service Marine Forecast FZUS53 KDLH

FZUS53 KDLH 240747
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
247 AM CDT Thu Apr 24 2025

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.

LSZ140-141-241615
Grand Portage to Grand Marais MN
Grand Marais to Taconite Harbor MN
247 AM CDT Thu Apr 24 2025

TODAY
Northwest wind 5 to 10 knots becoming east in the late morning and afternoon. Mostly cloudy. Waves 1 foot or less.

TONIGHT
Northeast wind 5 to 10 knots. Slight chance of rain showers through the night. Waves 1 foot or less.

FRIDAY
Northeast wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less.

FRIDAY NIGHT
North wind 5 to 10 knots. Mostly clear. Waves 1 foot or less.

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

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LSZ142-143-241615
Taconite Harbor to Silver Bay Harbor MN
Silver Bay Harbor to Two Harbors MN
247 AM CDT Thu Apr 24 2025

TODAY
North wind 5 knots becoming east in the late morning and afternoon. Mostly cloudy. Waves 1 foot or less.

TONIGHT
Northeast wind 5 to 10 knots. Slight chance of rain showers in the evening, then chance of rain showers after midnight. Waves 1 foot or less.

FRIDAY
Northeast wind 5 to 10 knots. Partly sunny. Waves 1 foot or less.

FRIDAY NIGHT
North wind 5 knots. Mostly clear. Waves 1 foot or less.

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

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LSZ144-145-241615
Two Harbors to Duluth MN-Duluth MN to Port Wing WI
247 AM CDT Thu Apr 24 2025

TODAY
North wind 5 knots becoming northeast in the late morning and afternoon. Mostly cloudy. Waves 1 to 2 feet.

TONIGHT
Northeast wind 10 to 15 knots. Chance of rain showers. Waves 1 to 2 feet.

FRIDAY
Northeast wind 5 to 10 knots. Slight chance of rain showers in the morning. Waves 1 to 2 feet.

FRIDAY NIGHT
Northeast wind 5 knots becoming north early in the morning. Mostly clear. Waves 1 foot or less.

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

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LSZ146-241615
Port Wing to Sand Island WI
247 AM CDT Thu Apr 24 2025

TODAY
Northwest wind 5 knots becoming northeast in the late morning and afternoon. Mostly cloudy. Waves 1 foot or less.

TONIGHT
Northeast wind 5 to 10 knots. Chance of rain showers. Waves 1 to 2 feet.

FRIDAY
Northeast wind 5 to 10 knots. Slight chance of rain showers in the morning. Waves 1 to 2 feet.

FRIDAY NIGHT
Northeast wind 5 knots becoming north after midnight. Mostly clear. Waves 1 foot or less.

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

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LSZ147-241615
Sand Island to Bayfield WI
247 AM CDT Thu Apr 24 2025

TODAY
Northwest wind 5 knots becoming northeast in the late morning and afternoon. Mostly cloudy. Waves 1 foot or less.

TONIGHT
Northeast wind 5 to 10 knots. Chance of rain showers. Waves 1 foot or less.

FRIDAY
Northeast wind 5 to 10 knots. Slight chance of rain showers in the morning. Waves 1 foot or less.

FRIDAY NIGHT
Northeast wind 5 knots becoming north in the late evening and overnight. Mostly clear. Waves 1 foot or less.

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

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LSZ121-241615
Chequamegon Bay-Bayfield to Oak Point WI
247 AM CDT Thu Apr 24 2025

TODAY
Northwest wind 5 knots becoming northeast in the late morning and afternoon. Slight chance of rain showers late in the afternoon. Waves 1 foot or less.

TONIGHT
Northeast wind 5 to 10 knots. Chance of rain showers. Waves 1 to 2 feet.

FRIDAY
Northeast wind 5 to 10 knots. Slight chance of rain showers in the morning. Waves 1 to 2 feet.

FRIDAY NIGHT
Northeast wind 5 knots becoming north 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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LSZ148-241615
Oak Point to Saxon Harbor WI
247 AM CDT Thu Apr 24 2025

TODAY
Northwest wind 5 knots becoming northeast in the late morning and afternoon. Slight chance of rain showers late in the afternoon. Waves 1 foot or less.

TONIGHT
Northeast wind 10 to 15 knots. Chance of rain showers in the evening, then rain showers likely after midnight. Waves 1 to 2 feet.

FRIDAY
Northeast wind 10 knots rising to 10 to 15 knots late in the morning, then easing to 5 to 10 knots in the afternoon. Chance of rain showers in the morning. Waves 1 to 2 feet.

FRIDAY NIGHT
North wind 5 knots. Mostly clear. Waves 1 to 2 feet.

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

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LSZ150-241615
Outer Apostle Islands Beyond 5 NM from Mainland
247 AM CDT Thu Apr 24 2025

TODAY
Northwest wind 5 knots becoming northeast late in the afternoon. Mostly cloudy. Waves 1 foot or less.

TONIGHT
Northeast wind 10 to 15 knots. Chance of rain showers through the night. Waves 1 to 2 feet.

FRIDAY
Northeast wind 10 to 15 knots. Slight chance of rain showers in the morning. Waves 1 to 2 feet.

FRIDAY NIGHT
North wind 5 knots. Mostly clear. 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

Britt