Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 251148
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
547 AM CST Tue Nov 25 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.

LSZ140-251700-
Grand Portage to Grand Marais MN-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 20 to 25 knots with gusts to around
30 knots. Slight chance of rain and snow in the morning, then
chance of rain and snow in the afternoon. Waves 1 to 3 feet
building to 3 to 5 feet in the late morning and afternoon.
.TONIGHT...North wind up to 30 knots. Gusts up to 35 knots
increasing to 40 knots in the late evening and overnight. Snow.
Waves 5 to 8 feet. Waves occasionally to 11 feet.
.WEDNESDAY...North wind up to 30 knots. Gales up to 45 knots
decreasing to 40 knots late in the afternoon. Snow in the
morning, then snow likely in the afternoon. Waves 5 to 8 feet
subsiding to 4 to 6 feet late in the afternoon. Waves
occasionally to 11 feet.
.WEDNESDAY NIGHT...Northwest wind up to 30 knots. Gales up to
40 knots decreasing to 35 knots after midnight. Chance of snow in
the evening. Waves 3 to 5 feet. Waves occasionally to 7 feet.

$$

LSZ141-251700-
Grand Marais to Taconite Harbor MN-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 15 to 20 knots. Gusts up to 20 knots
increasing to 30 knots. Slight chance of rain early in the
morning, then chance of rain in the late morning and early
afternoon. Chance of snow in the late morning and afternoon.
Waves 1 to 2 feet building to 2 to 4 feet in the late morning and
afternoon.
.TONIGHT...North wind up to 30 knots with gales to around
40 knots. Snow. Waves 3 to 5 feet. Waves occasionally to 7 feet.
.WEDNESDAY...North wind up to 30 knots with gales to around
40 knots. Snow likely in the morning, then chance of snow in the
afternoon. Waves 4 to 6 feet. Waves occasionally to 8 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to
35 knots decreasing to 30 knots early in the morning. Chance of
snow in the evening. Waves 2 to 4 feet.

$$

LSZ142-251700-
Taconite Harbor to Silver Bay Harbor MN-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 15 to 20 knots. Gusts up to 20 knots
increasing to 30 knots. Chance of rain until late afternoon. Snow
likely late in the afternoon. Waves 4 to 6 feet. Waves
occasionally to 8 feet.
.TONIGHT...North wind 20 to 25 knots. Gusts up to 30 knots
increasing to 35 knots in the late evening and overnight. Snow.
Waves 4 to 6 feet. Waves occasionally to 8 feet.
.WEDNESDAY...North wind 20 to 25 knots with gales to around
40 knots. Snow likely in the morning, then chance of snow in the
afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet.
.WEDNESDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to
35 knots decreasing to 30 knots after midnight. Slight chance of
snow in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet
in the late evening and overnight.

$$

LSZ143-251700-
Silver Bay Harbor to Two Harbors MN-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 20 to 25 knots. Gusts up to 25 knots
increasing to 35 knots. Chance of rain in the morning, then rain
likely in the afternoon. Snow likely late in the afternoon. Waves
5 to 8 feet. Waves occasionally to 10 feet.
.TONIGHT...North wind 20 to 25 knots with gales to around
35 knots. Slight chance of rain in the evening. Snow through the
night. Waves 5 to 8 feet. Waves occasionally to 10 feet.
.WEDNESDAY...Northwest wind 20 to 25 knots. Gusts up to 35 knots
increasing to 40 knots early in the afternoon, then decreasing to
35 knots late in the afternoon. Snow likely in the morning, then
chance of snow in the afternoon. Waves 4 to 6 feet. Waves
occasionally to 7 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots with gales to
around 35 knots easing to 10 to 15 knots with gusts to around
30 knots early in the morning. Slight chance of snow in the
evening. Waves 2 to 4 feet subsiding to 1 to 2 feet after
midnight.

$$

LSZ144-251700-
Two Harbors to Duluth MN-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 20 to 25 knots. Gusts up to 25 knots
increasing to 35 knots. Chance of rain in the morning, then rain
likely early in the afternoon. Rain and snow late in the
afternoon. Waves 6 to 9 feet. Waves occasionally to 11 feet.
.TONIGHT...North wind up to 30 knots with gales to around
35 knots. Slight chance of rain in the evening. Snow through the
night. Waves 6 to 9 feet subsiding to 4 to 7 feet after midnight.
Waves occasionally to 11 feet.
.WEDNESDAY...Northwest wind up to 30 knots with gales to around
35 knots. Snow likely in the morning, then chance of snow in the
afternoon. Waves 4 to 6 feet. Waves occasionally to 7 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to
30 knots decreasing to 25 knots after midnight. Slight chance of
snow in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet
after midnight. A small craft advisory may be needed.

$$

LSZ145-251700-
Duluth MN to Port Wing WI-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind up to 30 knots with gales to around
35 knots. Chance of rain early in the morning, then rain likely
in the late morning and early afternoon. Rain late in the
afternoon. Waves 6 to 9 feet. Waves occasionally to 12 feet.
.TONIGHT...North wind up to 30 knots with gales to around
40 knots becoming north up to 30 knots with gales to around
35 knots early in the morning. Rain in the evening. Snow through
the night. Waves 7 to 10 feet. Waves occasionally to 13 feet.
.WEDNESDAY...Northwest wind up to 30 knots. Gusts up to 35 knots
increasing to 40 knots in the afternoon. Snow likely. Waves 6 to
9 feet. Waves occasionally to 11 feet.
.WEDNESDAY NIGHT...Northwest wind up to 30 knots with gales to
around 35 knots easing to 15 to 20 knots with gusts to around
30 knots after midnight. Slight chance of snow in the evening.
Waves 4 to 6 feet subsiding to 2 to 4 feet early in the morning.
Waves occasionally to 8 feet.

$$

LSZ146-251700-
Port Wing to Sand Island WI-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 20 to 25 knots. Gusts up to 25 knots
increasing to 35 knots. Chance of rain in the morning, then rain
likely early in the afternoon. Rain late in the afternoon. Waves
5 to 8 feet. Waves occasionally to 11 feet.
.TONIGHT...North wind up to 30 knots. Gusts up to 35 knots
increasing to 40 knots in the late evening and overnight. Rain in
the evening. Snow through the night. Waves 7 to 10 feet building
to 8 to 11 feet after midnight. Waves occasionally to 14 feet.
.WEDNESDAY...Northwest wind up to 30 knots. Gales up to 40 knots
increasing to 45 knots in the afternoon. Snow in the morning,
then snow likely in the afternoon. Waves 7 to 10 feet subsiding
to 5 to 8 feet late in the afternoon. Waves occasionally to
14 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots with gales to
around 35 knots easing to 15 to 20 knots with gusts to around
30 knots after midnight. Chance of snow in the evening, then
slight chance of snow after midnight. Waves 4 to 7 feet subsiding
to 3 to 5 feet early in the morning. Waves occasionally to
9 feet.

$$

LSZ147-251700-
Sand Island to Bayfield WI-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 20 to 25 knots with gales to around
35 knots. Chance of rain in the morning. Rain likely early in the
afternoon, then rain late in the afternoon. Waves 5 to 8 feet.
Waves occasionally to 10 feet.
.TONIGHT...North wind up to 30 knots with gales to around
40 knots. Rain in the evening. Snow through the night. Waves 8 to
11 feet. Waves occasionally to 14 feet.
.WEDNESDAY...North wind up to 30 knots. Gales up to 40 knots
increasing to 45 knots in the afternoon. Snow likely. Waves 8 to
11 feet subsiding to 6 to 9 feet late in the afternoon. Waves
occasionally to 14 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to
35 knots decreasing to 30 knots early in the morning. Chance of
snow. Waves 5 to 8 feet subsiding to 3 to 5 feet early in the
morning. Waves occasionally to 10 feet.

$$

LSZ150-251700-
Outer Apostle Islands Beyond 5 NM from Mainland-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 20 to 25 knots. Gusts up to 25 knots
increasing to 35 knots. Chance of rain in the morning. Rain
likely early in the afternoon, then rain late in the afternoon.
Waves 4 to 7 feet building to 6 to 9 feet late in the afternoon.
Waves occasionally to 12 feet.
.TONIGHT...Northeast wind up to 30 knots. Gales up to 40 knots
increasing to 45 knots in the late evening and overnight. Rain in
the evening. Snow through the night. Blowing snow after midnight.
Waves 7 to 12 feet building to 10 to 15 feet in the late evening
and overnight. Waves occasionally to 20 feet.
.WEDNESDAY...North wind up to 30 knots with gales to around
45 knots rising to gales to 35 knots with gales to around
45 knots early in the afternoon, then becoming northwest up to
30 knots with gales to around 45 knots late in the afternoon.
Snow in the morning, then snow likely in the afternoon. Waves
10 to 15 feet subsiding to 7 to 12 feet late in the afternoon.
Waves occasionally to 20 feet.
.WEDNESDAY NIGHT...Northwest wind up to 30 knots. Gales up to
40 knots decreasing to 35 knots in the late evening and
overnight. Chance of snow. Waves 8 to 11 feet subsiding to 5 to
8 feet after midnight. Waves occasionally to 14 feet.

$$

LSZ121-251700-
Chequamegon Bay-Bayfield to Oak Point WI-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 20 to 25 knots with gales to around
35 knots. Chance of rain early in the morning, then rain likely
in the late morning and early afternoon. Rain late in the
afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon.
.TONIGHT...North wind up to 30 knots. Gusts up to 35 knots
increasing to 40 knots in the late evening and early morning,
then decreasing to 35 knots early in the morning. Rain in the
evening. Snow through the night. Waves 2 to 4 feet.
.WEDNESDAY...Northwest wind up to 30 knots. Gales up to 40 knots
decreasing to 35 knots in the late morning and early afternoon,
then increasing to 40 knots late in the afternoon. Snow in the
morning, then snow likely in the afternoon. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to
35 knots decreasing to 30 knots in the late evening and
overnight. Chance of snow. Waves 1 to 3 feet subsiding to 1 to
2 feet in the late evening and overnight.

$$

LSZ148-251700-
Oak Point to Saxon Harbor WI-
548 AM CST Tue Nov 25 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM CST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 2 PM CST THIS AFTERNOON THROUGH
LATE WEDNESDAY NIGHT...

.TODAY...Northeast wind 20 to 25 knots with gales to around
35 knots. Chance of rain early in the morning, then rain likely
in the late morning and early afternoon. Rain late in the
afternoon. Waves 6 to 9 feet. Waves occasionally to 12 feet.
.TONIGHT...Northeast wind up to 30 knots with gales to around
40 knots becoming north with gales to around 40 knots early in
the morning. Rain in the evening. Snow through the night. Blowing
snow after midnight. Waves 8 to 11 feet building to 10 to 15 feet
in the late evening and overnight. Waves occasionally to 19 feet.
.WEDNESDAY...North wind up to 30 knots with gales to around
40 knots. Snow. Waves 9 to 14 feet subsiding to 7 to 12 feet in
the afternoon. Waves occasionally to 19 feet.
.WEDNESDAY NIGHT...Northwest wind up to 30 knots. Gales up to
40 knots decreasing to 30 knots. Snow likely in the evening, then
chance of snow after midnight. Waves 6 to 9 feet subsiding to
4 to 6 feet after midnight. Waves occasionally to 12 feet.

$$

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

WFO DLH