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FZUS53 KDLH 032308
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
508 PM CST Wed Dec 3 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.

LSZ140-040500-
Grand Portage to Grand Marais MN-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...

.TONIGHT...Northwest wind 20 to 25 knots. Gusts up to 30 knots
decreasing to 25 knots late in the night. Chance of flurries late
in the evening. Waves 1 to 3 feet.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots becoming southwest 20 to 25 knots with gales to around
35 knots in the afternoon. Freezing spray in the afternoon.
Slight chance of snow in the afternoon. Waves 1 to 2 feet
building to 6 to 9 feet. Waves occasionally to 12 feet. A gale
warning may be needed.
.THURSDAY NIGHT...Southwest wind up to 30 knots with gales to
around 40 knots becoming west 15 to 20 knots with gales to around
35 knots after midnight. Freezing spray through the night. Snow
in the evening. Chance of snow after midnight. Waves 8 to 11 feet
subsiding to 4 to 7 feet early in the morning. Waves occasionally
to 14 feet. A gale warning may be needed.
.FRIDAY...West wind 10 to 15 knots. Gusts up to 20 knots early in
the morning. Slight chance of snow through the day. Waves 3 to
5 feet subsiding to 1 to 2 feet in the afternoon. A small craft
advisory may be needed.

$$

LSZ141-040500-
Grand Marais to Taconite Harbor MN-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...

.TONIGHT...Northwest wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 25 knots after midnight. Partly cloudy. Waves 1 to
3 feet.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots becoming southwest 20 to 25 knots with gusts to around
30 knots in the afternoon. Freezing spray in the afternoon.
Chance of snow in the afternoon. Waves 1 to 2 feet building to
4 to 7 feet in the afternoon. Waves occasionally to 9 feet.
.THURSDAY NIGHT...Southwest wind 20 to 25 knots with gales to
around 35 knots becoming west 10 to 15 knots with gusts to around
20 knots early in the morning. Freezing spray in the evening.
Snow in the evening, then chance of snow after midnight. Waves
5 to 8 feet subsiding to 3 to 5 feet early in the morning. Waves
occasionally to 10 feet. A gale warning may be needed.
.FRIDAY...West wind 5 to 10 knots. Slight chance of snow. Waves
1 to 3 feet subsiding to 1 to 2 feet in the late morning and
afternoon.

$$

LSZ142-040500-
Taconite Harbor to Silver Bay Harbor MN-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...

.TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots late in the night. Mostly cloudy early in
the evening then becoming partly cloudy. Waves 1 to 2 feet.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots becoming southwest 20 to 25 knots with gusts to around
30 knots in the afternoon. Chance of snow in the afternoon. Waves
1 to 2 feet building to 4 to 6 feet in the afternoon. Waves
occasionally to 8 feet.
.THURSDAY NIGHT...Southwest wind 20 to 25 knots with gales to
around 35 knots becoming west 10 to 15 knots with gusts to around
20 knots early in the morning. Freezing spray in the evening.
Snow 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 gale warning may be needed.
.FRIDAY...West wind 5 knots. Slight chance of snow through the
day. Waves 1 to 2 feet.

$$

LSZ143-040500-
Silver Bay Harbor to Two Harbors MN-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...

.TONIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots.
Partly cloudy. Waves 1 to 2 feet.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots becoming southwest 20 to 25 knots with gusts to around
30 knots in the afternoon. Slight chance of snow in the
afternoon. Waves 1 to 2 feet building to 4 to 6 feet in the
afternoon. Waves occasionally to 7 feet.
.THURSDAY NIGHT...Southwest wind 20 to 25 knots with gales to
around 35 knots becoming west 10 to 15 knots with gusts to around
20 knots early in the morning. Freezing spray in the evening.
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 gale warning may be needed.
.FRIDAY...West wind 5 to 10 knots. Slight chance of snow through
the day. Waves 1 to 2 feet.

$$

LSZ144-040500-
Two Harbors to Duluth MN-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots. Partly
cloudy. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 15 to 20 knots with gusts to around
30 knots. Slight chance of snow in the afternoon. Waves 1 to
2 feet building to 3 to 5 feet in the afternoon. Waves
occasionally to 7 feet.
.THURSDAY NIGHT...Southwest wind 20 to 25 knots with gales to
around 35 knots easing to 10 to 15 knots with gusts to around
20 knots early in the morning. Freezing spray in the evening.
Snow likely in the evening, then chance of snow after midnight.
Waves 4 to 6 feet subsiding to 1 to 3 feet early in the morning.
Waves occasionally to 8 feet. A gale warning may be needed.
.FRIDAY...West wind 5 to 10 knots. Slight chance of snow in the
morning, then chance of snow in the afternoon. Waves 1 to 2 feet.

$$

LSZ145-040500-
Duluth MN to Port Wing WI-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots. Partly
cloudy. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the
night.
.THURSDAY...Southwest wind 15 to 20 knots. Gusts up to 30 knots.
Slight chance of snow in the afternoon. Waves 1 to 2 feet
building to 2 to 4 feet in the afternoon.
.THURSDAY NIGHT...Southwest wind 20 to 25 knots. Gusts up to
35 knots decreasing to 25 knots. 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 7 feet. A
gale warning may be needed.
.FRIDAY...West wind 5 to 10 knots. Chance of snow. Waves 1 to
2 feet.

$$

LSZ146-040500-
Port Wing to Sand Island WI-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.TONIGHT...Northwest wind 20 to 25 knots becoming west 10 to
15 knots with gusts to around 20 knots late in the night. Mostly
cloudy then becoming partly cloudy after midnight then becoming
mostly cloudy. Waves 3 to 5 feet. Waves occasionally to 7 feet.
.THURSDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots
increasing to 30 knots. Slight chance of snow in the afternoon.
Waves 1 to 3 feet building to 2 to 4 feet in the afternoon.
.THURSDAY NIGHT...Southwest wind 20 to 25 knots. Gusts up to
35 knots decreasing to 25 knots. Freezing spray in the evening.
Snow in the evening, then chance of snow after midnight. Waves
4 to 6 feet. Waves occasionally to 8 feet. A gale warning may be
needed.
.FRIDAY...West wind 5 to 10 knots. Gusts up to 20 knots early in
the morning then 20 knots late in the afternoon. Chance of snow.
Waves 1 to 3 feet.

$$

LSZ147-040500-
Sand Island to Bayfield WI-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.TONIGHT...Northwest wind 20 to 25 knots with gusts to around
30 knots becoming west 10 to 15 knots with gusts to around
20 knots late in the night. Heavy freezing spray early in the
evening. Chance of flurries in the evening. Waves 4 to 6 feet
subsiding to 2 to 4 feet late in the night. Waves occasionally to
8 feet.
.THURSDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots rising to 15 to 20 knots with gusts to around 30 knots
in the afternoon. Slight chance of snow in the afternoon. Waves
1 to 2 feet building to 2 to 4 feet in the afternoon.
.THURSDAY NIGHT...Southwest wind 20 to 25 knots. Gusts up to
35 knots decreasing to 25 knots. Snow likely in the evening, then
chance of snow after midnight. Waves 3 to 5 feet. Waves
occasionally to 7 feet. A gale warning may be needed.
.FRIDAY...West wind 5 to 10 knots. Gusts up to 20 knots early in
the morning then 20 knots late in the afternoon. Chance of snow.
Waves 1 to 3 feet.

$$

LSZ150-040500-
Outer Apostle Islands Beyond 5 NM from Mainland-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY
EVENING...

.TONIGHT...Northwest wind 20 to 25 knots. Gusts up to 30 knots
until early morning. Chance of flurries in the evening. Heavy
freezing spray until early morning. Waves 4 to 7 feet subsiding
to 3 to 5 feet late in the night. Waves occasionally to 10 feet.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots becoming southwest 20 to 25 knots with gales to around
35 knots in the afternoon. Slight chance of snow in the
afternoon. Waves 4 to 6 feet. Waves occasionally to 7 feet. A
gale warning may be needed.
.THURSDAY NIGHT...Southwest wind up to 30 knots with gales to
around 35 knots easing to 15 to 20 knots with gusts to around
30 knots early in the morning. Freezing spray in the evening.
Snow likely through the night. Waves 4 to 7 feet. Waves
occasionally to 9 feet. A gale warning may be needed.
.FRIDAY...West wind 10 to 15 knots. Gusts up to 20 knots in the
morning then 20 knots late in the afternoon. Chance of snow.
Waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning
and afternoon.

$$

LSZ121-040500-
Chequamegon Bay-Bayfield to Oak Point WI-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.TONIGHT...Northwest wind 15 to 20 knots. Gusts up to 25 knots.
Chance of flurries early in the evening. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 10 knots rising to 15 to 20 knots with
gusts to around 30 knots in the late morning and afternoon.
Partly sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind 20 to 25 knots with gales to
around 35 knots easing to 10 to 15 knots with gusts to around
20 knots early in the morning. Snow likely in the evening, then
chance of snow after midnight. Waves 1 to 3 feet. A gale warning
may be needed.
.FRIDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
early in the morning. Chance of snow. Waves 1 foot or less.

$$

LSZ148-040500-
Oak Point to Saxon Harbor WI-
508 PM CST Wed Dec 3 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY MORNING...

.TONIGHT...Northwest wind 20 to 25 knots with gusts to around
30 knots becoming west 10 to 15 knots with gusts to around
20 knots late in the night. Chance of snow early in the evening,
then chance of flurries late in the evening. Waves 3 to 5 feet.
.THURSDAY...Southwest wind 15 to 20 knots. Gusts up to 30 knots.
Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet late in
the afternoon.
.THURSDAY NIGHT...Southwest wind 20 to 25 knots. Gusts up to
35 knots decreasing to 25 knots. Snow likely. Waves 2 to 4 feet
subsiding to 1 to 3 feet early in the morning. A gale warning may
be needed.
.FRIDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots easing to 10 knots late in the afternoon. Chance of
snow. Waves 1 to 2 feet.

$$

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

WFO DLH