Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 110743
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
143 AM CST Tue Nov 11 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.

LSZ140-111700-
Grand Portage to Grand Marais MN-
143 AM CST Tue Nov 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southwest wind 15 to 20 knots with gusts to around
30 knots becoming west 10 to 15 knots with gusts to around
20 knots in the afternoon. Chance of sprinkles and flurries in
the morning. Chance of sprinkles late in the afternoon. Waves
4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves
occasionally to 8 feet.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots after midnight. Chance of sprinkles
through the night. Waves 1 to 3 feet.
.WEDNESDAY...Northwest wind 15 to 20 knots. Gusts up to 30 knots
increasing to 35 knots in the late morning and early afternoon,
then decreasing to 30 knots late in the afternoon. Partly sunny.
Waves 1 to 3 feet. A gale warning may be needed.
.WEDNESDAY NIGHT...West wind 10 to 15 knots with gusts to around
25 knots. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ141-111700-
Grand Marais to Taconite Harbor MN-
143 AM CST Tue Nov 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southwest 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. Chance of sprinkles early in the
morning. Chance of flurries in the morning. Chance of sprinkles
late in the afternoon. Waves 4 to 6 feet subsiding to 1 to 3 feet
late in the afternoon. Waves occasionally to 7 feet.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots after midnight. Slight chance of rain in
the evening. Waves 1 to 3 feet.
.WEDNESDAY...Northwest wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 25 knots late in the afternoon. Mostly sunny. Waves
1 to 3 feet.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. Mostly
clear. Waves 1 to 2 feet.

$$

LSZ142-111700-
Taconite Harbor to Silver Bay Harbor MN-
143 AM CST Tue Nov 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southwest 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. Chance of flurries late in the
morning. Chance of sprinkles late in the afternoon. Waves 2 to
4 feet subsiding to 1 to 3 feet in the afternoon.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
increasing to 30 knots after midnight, then decreasing to
25 knots early in the morning. Chance of sprinkles in the
evening. Waves 1 to 2 feet.
.WEDNESDAY...West wind 10 to 15 knots with gusts to around
25 knots. Mostly sunny. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. Mostly
clear. Waves 1 foot or less.

$$

LSZ143-111700-
Silver Bay Harbor to Two Harbors MN-
143 AM CST Tue Nov 11 2025

.TODAY...Southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 knots with gusts to around 20 knots
early in the afternoon, then rising to 10 to 15 knots with gusts
to around 20 knots late in the afternoon. Chance of sprinkles
late in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet
in the afternoon.
.TONIGHT...West wind 15 to 20 knots with gusts to around
25 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet.
.WEDNESDAY...West wind 10 to 15 knots with gusts to around
25 knots. Mostly sunny. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. Mostly
clear. Waves 1 to 2 feet.

$$

LSZ144-111700-
Two Harbors to Duluth MN-
143 AM CST Tue Nov 11 2025

.TODAY...Southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 to 15 knots with gusts to around
25 knots in the afternoon. Partly sunny. Waves 2 to 4 feet
subsiding to 1 to 2 feet in the afternoon.
.TONIGHT...West wind 15 to 20 knots with gusts to around
25 knots. Mostly cloudy in the evening then becoming partly
cloudy. Waves 1 to 3 feet.
.WEDNESDAY...West wind 15 to 20 knots with gusts to around
25 knots. Sunny. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
in the evening. Mostly clear. Waves 1 to 2 feet.

$$

LSZ145-111700-
Duluth MN to Port Wing WI-
143 AM CST Tue Nov 11 2025

.TODAY...Southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 to 15 knots with gusts to around
25 knots in the afternoon. Mostly cloudy. Waves 1 to 3 feet.
.TONIGHT...West wind 15 to 20 knots with gusts to around
25 knots. Mostly cloudy. Waves 2 to 4 feet. A small craft
advisory may be needed.
.WEDNESDAY...West wind 15 to 20 knots with gusts to around
25 knots. Sunny. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Mostly clear. Waves 1 to 3 feet subsiding to
1 to 2 feet in the late evening and overnight.

$$

LSZ146-111700-
Port Wing to Sand Island WI-
143 AM CST Tue Nov 11 2025

.TODAY...Southwest wind 15 to 20 knots with gusts to around
30 knots becoming west with gusts to around 25 knots late in the
afternoon. Mostly cloudy. Waves 2 to 4 feet.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots after midnight. Chance of sprinkles in the
evening. Waves 3 to 5 feet. A small craft advisory may be needed.
.WEDNESDAY...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late morning and afternoon. Mostly
sunny. Waves 2 to 4 feet. A small craft advisory may be needed.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. Mostly clear. Waves 1 to
3 feet.

$$

LSZ147-111700-
Sand Island to Bayfield WI-
143 AM CST Tue Nov 11 2025

.TODAY...Southwest wind 15 to 20 knots becoming west in the
afternoon. Gusts up to 25 knots. Mostly cloudy. Waves 2 to
4 feet.
.TONIGHT...West wind 20 to 25 knots. Gusts up to 30 knots after
midnight. Chance of sprinkles in the evening. Waves 3 to 5 feet.
Waves occasionally to 7 feet. A small craft advisory may be
needed.
.WEDNESDAY...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late morning and afternoon. Mostly
sunny. Waves 2 to 4 feet. A small craft advisory may be needed.
.WEDNESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. Mostly clear. Waves 1 to
3 feet.

$$

LSZ150-111700-
Outer Apostle Islands Beyond 5 NM from Mainland-
143 AM CST Tue Nov 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...

.TODAY...Southwest wind 15 to 20 knots with gusts to around
30 knots becoming west with gusts to around 25 knots late in the
afternoon. Mostly cloudy. Waves 3 to 5 feet. Waves occasionally
to 7 feet.
.TONIGHT...West wind 20 to 25 knots with gusts to around
30 knots. Chance of sprinkles in the evening. Waves 4 to 6 feet.
Waves occasionally to 8 feet.
.WEDNESDAY...West wind 20 to 25 knots with gusts to around
30 knots. Mostly sunny. Waves 4 to 6 feet. Waves occasionally to
8 feet.
.WEDNESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. Mostly clear. Waves 2 to
4 feet.

$$

LSZ121-111700-
Chequamegon Bay-Bayfield to Oak Point WI-
143 AM CST Tue Nov 11 2025

.TODAY...Southwest wind 10 to 15 knots with gusts to around
25 knots becoming west with gusts to around 20 knots in the
afternoon. Chance of sprinkles late in the afternoon. Waves 1 to
2 feet.
.TONIGHT...West wind 15 to 20 knots with gusts to around
25 knots. Chance of sprinkles in the evening. Waves 1 to 2 feet.
.WEDNESDAY...West wind 10 to 15 knots with gusts to around
25 knots. Sunny. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Mostly clear. Waves 1 foot or less.

$$

LSZ148-111700-
Oak Point to Saxon Harbor WI-
143 AM CST Tue Nov 11 2025

.TODAY...Southwest wind 15 to 20 knots with gusts to around
30 knots becoming west 10 to 15 knots with gusts to around
25 knots in the afternoon. Chance of sprinkles late in the
afternoon. Waves 1 to 3 feet.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots early in the morning. Chance of sprinkles
in the evening. Waves 1 to 3 feet building to 2 to 4 feet in the
late evening and overnight. A small craft advisory may be needed.
.WEDNESDAY...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots early in the afternoon, then decreasing to
25 knots late in the afternoon. Mostly sunny. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Mostly clear. Waves 1 to 3 feet.

$$

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

WFO DLH