Station List

National Weather Service Marine Forecast FZUS53 KDLH

FZUS53 KDLH 041632
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1032 AM CST Wed Mar 4 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.

LSZ140-042300
Grand Portage to Grand Marais MN
1032 AM CST Wed Mar 4 2026

REST OF TODAY
Northeast wind 10 to 15 knots. Gusts up to 20 knots in the afternoon. Patchy fog in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet late.

TONIGHT
Northeast wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late evening and overnight. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY
Northeast wind 20 to 25 knots. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally to 7 feet. A small craft advisory may be needed.

THURSDAY NIGHT
East wind 10 to 15 knots with gusts to around 20 knots becoming southeast 5 to 10 knots after midnight. Cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight.

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

LSZ141-042300
Grand Marais to Taconite Harbor MN
1032 AM CST Wed Mar 4 2026

REST OF TODAY
East wind 10 to 15 knots with gusts to around 20 knots. Mostly cloudy. Waves 1 to 2 feet building to 1 to 3 feet late.

TONIGHT
Northeast wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late evening and overnight. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally to 7 feet. A small craft advisory may be needed.

THURSDAY
East wind 15 to 20 knots. Gusts up to 25 knots in the morning. Mostly cloudy. Waves 3 to 5 feet. Waves occasionally to 7 feet. A small craft advisory may be needed.

THURSDAY NIGHT
East wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight.

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

LSZ142-042300
Taconite Harbor to Silver Bay Harbor MN
1032 AM CST Wed Mar 4 2026

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

TONIGHT
Northeast wind 20 to 25 knots with gusts to around 30 knots. Patchy fog in the evening. Waves 3 to 5 feet. A small craft advisory may be needed.

THURSDAY
Northeast wind 15 to 20 knots. Gusts up to 25 knots decreasing to 20 knots in the afternoon. Mostly cloudy. Waves 3 to 5 feet. A small craft advisory may be needed.

THURSDAY NIGHT
Northeast wind 10 to 15 knots with gusts to around 20 knots becoming east 5 knots early in the morning. Cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight.

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

LSZ143-042300
Silver Bay Harbor to Two Harbors MN
1032 AM CST Wed Mar 4 2026

REST OF TODAY
Southeast wind 5 knots becoming northeast late. Mostly cloudy. Waves 1 to 2 feet.

TONIGHT
Northeast wind 20 to 25 knots with gusts to around 30 knots. Patchy fog. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY
Northeast wind 15 to 20 knots. Gusts up to 25 knots in the morning. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY NIGHT
Northeast wind 10 to 15 knots with gusts to around 20 knots becoming east 5 knots early in the morning. Cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. A small craft advisory may be needed.

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

LSZ144-042300
Two Harbors to Duluth MN
1032 AM CST Wed Mar 4 2026

REST OF TODAY
South wind 5 knots becoming east late. Partly sunny. Waves 1 to 2 feet.

TONIGHT
Northeast wind 20 to 25 knots with gusts to around 30 knots. Patchy fog after midnight. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY
Northeast wind 15 to 20 knots. Gusts up to 25 knots until late afternoon. Patchy fog in the morning. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY NIGHT
East wind 10 to 15 knots. Gusts up to 20 knots early in the evening. Slight chance of rain showers after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight. A small craft advisory may be needed.

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

LSZ145-042300
Duluth MN to Port Wing WI
1032 AM CST Wed Mar 4 2026

REST OF TODAY
Southwest wind 5 to 10 knots becoming southeast late. Mostly sunny. Waves 1 to 2 feet.

TONIGHT
Northeast wind 20 to 25 knots. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY
Northeast wind 20 to 25 knots. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY NIGHT
Northeast wind 15 to 20 knots becoming east 5 to 10 knots after midnight. Slight chance of rain showers after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. A small craft advisory may be needed.

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

LSZ146-042300
Port Wing to Sand Island WI
1032 AM CST Wed Mar 4 2026

REST OF TODAY
South wind 5 knots becoming northeast late. Mostly cloudy late in the morning then becoming partly sunny. Waves 1 to 2 feet.

TONIGHT
Northeast wind 20 to 25 knots. Patchy fog in the evening. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY
Northeast wind 20 to 25 knots. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY NIGHT
East wind 10 to 15 knots with gusts to around 20 knots easing to 5 knots early in the morning. Cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight.

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

LSZ150-042300
Outer Apostle Islands Beyond 5 NM from Mainland
1032 AM CST Wed Mar 4 2026

REST OF TODAY
Southeast wind 5 knots becoming east 10 to 15 knots late. Mostly cloudy. Waves 1 to 2 feet.

TONIGHT
Northeast wind 20 to 25 knots. Gusts up to 25 knots increasing to 30 knots in the late evening and overnight. Patchy fog in the evening. Waves 2 to 4 feet building to 5 to 8 feet in the late evening and overnight. Waves occasionally to 10 feet. A small craft advisory may be needed.

THURSDAY
Northeast wind 20 to 25 knots. Mostly cloudy. Waves 5 to 8 feet subsiding to 4 to 6 feet late in the afternoon. Waves occasionally to 11 feet. A small craft advisory may be needed.

THURSDAY NIGHT
East wind 10 to 15 knots with gusts to around 20 knots becoming southeast 5 to 10 knots after midnight. Mostly cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet early in the morning. A small craft advisory may be needed.

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

LSZ148-042300
Oak Point to Saxon Harbor WI
1032 AM CST Wed Mar 4 2026

REST OF TODAY
Southwest wind 5 knots becoming northeast late. Partly sunny. Waves 1 to 2 feet.

TONIGHT
Northeast wind 15 to 20 knots. Gusts up to 20 knots increasing to 25 knots in the late evening and overnight. Patchy fog after midnight. Waves 1 to 2 feet building to 3 to 5 feet in the late evening and overnight. A small craft advisory may be needed.

THURSDAY
Northeast wind 15 to 20 knots. Partly sunny. Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory may be needed.

THURSDAY NIGHT
East wind 10 to 15 knots becoming southeast 5 to 10 knots in the late evening and overnight. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. A small craft advisory may be needed.

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

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

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