Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 012033
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
233 PM CST Mon Dec 1 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.

LSZ140-020500-
Grand Portage to Grand Marais MN-
233 PM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots in the
evening. Chance of flurries in the evening. Waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight.
.TUESDAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming southwest 15 to 20 knots with gusts to around 30 knots
in the afternoon. Slight chance of snow in the morning. Snow
likely in the afternoon. Waves 1 to 2 feet building to 4 to
6 feet in the afternoon. Waves occasionally to 8 feet. A small
craft advisory may be needed.
.TUESDAY NIGHT...West wind 15 to 20 knots with gusts to around
30 knots becoming northwest with gusts to around 25 knots after
midnight. Snow likely in the evening, then chance of snow after
midnight. Waves 4 to 6 feet subsiding to 2 to 4 feet early in the
morning. Waves occasionally to 8 feet. A small craft advisory may
be needed.
.WEDNESDAY...Northwest wind 20 to 25 knots with gusts to around
30 knots. Mostly sunny. Waves 2 to 4 feet. A small craft advisory
may be needed.

$$

LSZ141-020500-
Grand Marais to Taconite Harbor MN-
233 PM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots early
in the evening. Chance of flurries in the evening. Waves 1 to
3 feet.
.TUESDAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming southwest with gusts to around 25 knots in the
afternoon. Chance of snow in the afternoon. Waves 1 to 2 feet
building to 2 to 4 feet in the afternoon. A small craft advisory
may be needed.
.TUESDAY NIGHT...West wind 10 to 15 knots with gusts to around
25 knots becoming northwest with gusts to around 25 knots after
midnight. Snow likely in the evening, then chance of snow after
midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet early in the
morning. A small craft advisory may be needed.
.WEDNESDAY...Northwest 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 1 to 3 feet.

$$

LSZ142-020500-
Taconite Harbor to Silver Bay Harbor MN-
233 PM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots in the
evening. Chance of flurries in the evening. Waves 1 to 2 feet.
.TUESDAY...Southwest wind 10 to 15 knots with gusts to around
25 knots. Chance of snow in the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...West wind 5 to 10 knots with gusts to around
20 knots becoming northwest with gusts to around 25 knots after
midnight. Snow likely in the evening, then chance of snow after
midnight. Waves 1 to 3 feet.
.WEDNESDAY...Northwest wind 10 to 15 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 1 to 2 feet.

$$

LSZ143-020500-
Silver Bay Harbor to Two Harbors MN-
233 PM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots in the
evening. Slight chance of snow early in the evening, then chance
of flurries late in the evening. Waves 1 to 2 feet.
.TUESDAY...Southwest wind 10 to 15 knots. Gusts up to 25 knots.
Snow likely in the afternoon. Waves 1 to 2 feet building to 1 to
3 feet in the afternoon.
.TUESDAY NIGHT...Southwest wind 10 to 15 knots with gusts to
around 25 knots becoming northwest with gusts to around 25 knots
after midnight. Snow likely in the evening, then chance of snow
after midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after
midnight.
.WEDNESDAY...Northwest wind 10 to 15 knots with gusts to around
25 knots. Mostly sunny. Waves 1 to 2 feet.

$$

LSZ144-020500-
Two Harbors to Duluth MN-
233 PM CST Mon Dec 1 2025

.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the evening. Chance of flurries in the evening. Waves 1 to
2 feet.
.TUESDAY...Southwest wind 10 to 15 knots. Gusts up to 25 knots.
Chance of snow in the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...Southwest wind 10 to 15 knots with gusts to
around 25 knots becoming west 15 to 20 knots after midnight. Snow
likely in the evening, then chance of snow after midnight. Waves
2 to 4 feet subsiding to 1 to 2 feet after midnight.
.WEDNESDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots
in the late morning and afternoon. Mostly sunny. Waves 1 to
3 feet.

$$

LSZ145-020500-
Duluth MN to Port Wing WI-
233 PM CST Mon Dec 1 2025

.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the evening. Chance of flurries in the evening. Waves 1 to
2 feet.
.TUESDAY...Southwest wind 15 to 20 knots with gusts to around
25 knots. Chance of snow in the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...Southwest wind 15 to 20 knots with gusts to
around 25 knots becoming northwest with gusts to around 25 knots
early in the morning. Snow likely in the evening, then chance of
snow after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet
early in the morning.
.WEDNESDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots late in the afternoon. Mostly sunny. Waves
2 to 4 feet.

$$

LSZ146-020500-
Port Wing to Sand Island WI-
233 PM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
20 knots. Slight chance of snow in the evening, then chance of
flurries after midnight. Waves 1 to 3 feet subsiding to 1 to
2 feet late in the night.
.TUESDAY...Southwest wind 15 to 20 knots with gusts to around
25 knots. Snow likely in the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...Southwest wind 15 to 20 knots becoming west
10 to 15 knots after midnight, then becoming northwest 5 to
15 knots early in the morning. Gusts up to 25 knots. Snow in the
evening, then snow likely after midnight. Waves 2 to 4 feet
subsiding to 1 to 3 feet early in the morning.
.WEDNESDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the afternoon. Partly sunny. Waves 2 to
4 feet. A small craft advisory may be needed.

$$

LSZ147-020500-
Sand Island to Bayfield WI-
233 PM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Chance of snow early in the evening, then
slight chance of snow late in the evening. Chance of flurries
after midnight. Waves 1 to 3 feet subsiding to 1 to 2 feet late
in the night.
.TUESDAY...Southwest wind 10 to 15 knots. Gusts up to 25 knots.
Slight chance of snow in the morning. Snow likely in the
afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...Southwest wind 10 to 15 knots becoming west
after midnight. Gusts up to 25 knots. Snow. Waves 1 to 3 feet.
.WEDNESDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late morning and afternoon. Slight
chance of snow in the morning. Waves 2 to 4 feet. A small craft
advisory may be needed.

$$

LSZ150-020500-
Outer Apostle Islands Beyond 5 NM from Mainland-
233 PM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...Southwest wind 15 to 20 knots. Chance of snow early in
the evening, then slight chance of snow late in the evening.
Chance of flurries after midnight. Waves 2 to 4 feet subsiding to
1 to 3 feet late in the night.
.TUESDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Slight chance of snow.
Waves 1 to 3 feet building to 2 to 4 feet in the afternoon.
.TUESDAY NIGHT...Southwest wind 15 to 20 knots becoming northwest
10 to 15 knots early in the morning. Gusts up to 25 knots. Snow.
Waves 2 to 4 feet. A small craft advisory may be needed.
.WEDNESDAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late morning and afternoon. Slight
chance of snow in the morning. Waves 4 to 6 feet. Waves
occasionally to 8 feet. A small craft advisory may be needed.

$$

LSZ121-020500-
Chequamegon Bay-Bayfield to Oak Point WI-
233 PM CST Mon Dec 1 2025

.TONIGHT...Southwest wind 10 to 15 knots. Chance of flurries in
the evening. Waves 1 foot or less.
.TUESDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Slight chance of snow in the morning. Snow likely
in the afternoon. Waves 1 to 2 feet.
.TUESDAY NIGHT...Southwest wind 10 to 15 knots with gusts to
around 25 knots becoming west with gusts to around 20 knots early
in the morning. Snow. Waves 1 to 2 feet.
.WEDNESDAY...Northwest wind 15 to 20 knots with gusts to around
25 knots. Slight chance of snow in the morning. Waves 1 to
2 feet.

$$

LSZ148-020500-
Oak Point to Saxon Harbor WI-
233 PM CST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CST THIS EVENING...

.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots
early in the evening. Chance of flurries in the evening. Waves
1 to 2 feet.
.TUESDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the late morning and afternoon. Slight chance of snow in the
morning. Chance of snow in the afternoon. Waves 1 to 2 feet.
.TUESDAY NIGHT...Southwest wind 10 to 15 knots with gusts to
around 25 knots becoming west with gusts to around 20 knots early
in the morning. Snow likely in the evening, then snow after
midnight. Waves 1 to 2 feet building to 1 to 3 feet early in the
morning.
.WEDNESDAY...Northwest wind 15 to 20 knots with gusts to around
25 knots. Chance of snow in the morning. Waves 2 to 4 feet. A
small craft advisory may be needed.

$$

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

WFO DLH