291
FZUS53 KDLH 042333
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
533 PM CST Thu Dec 4 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.

LSZ140-050500-
Grand Portage to Grand Marais MN-
533 PM CST Thu Dec 4 2025

...GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...Southwest wind up to 30 knots with gales to around
40 knots becoming west 15 to 20 knots with gusts to around
30 knots after midnight. Freezing spray until early morning.
Chance of snow early in the evening. Snow late in the evening,
then slight chance of snow after midnight. Waves 7 to 12 feet
subsiding to 5 to 8 feet late in the night. Waves occasionally to
16 feet.
.FRIDAY...West wind 10 to 15 knots. Gusts up to 20 knots late in
the afternoon. Slight chance of snow in the afternoon. Waves 3 to
5 feet subsiding to 1 to 2 feet in the afternoon. A small craft
advisory may be needed.
.FRIDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to
20 knots increasing to 25 knots in the late evening and
overnight. Mostly cloudy in the evening then becoming partly
cloudy. Waves 1 to 2 feet.
.SATURDAY...Northwest wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots with gusts to around 20 knots
late in the afternoon. Sunny. Waves 1 to 3 feet.

$$

LSZ141-050500-
Grand Marais to Taconite Harbor MN-
533 PM CST Thu Dec 4 2025

...GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...Southwest wind up to 30 knots with gales to around
35 knots becoming west 15 to 20 knots with gusts to around
25 knots after midnight. Chance of snow in the evening. Freezing
spray until early morning. Waves 7 to 10 feet subsiding to 3 to
5 feet late in the night. Waves occasionally to 13 feet.
.FRIDAY...West wind 5 to 10 knots. Chance of snow in the
afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late
morning and afternoon.
.FRIDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to
20 knots increasing to 25 knots early in the morning. Mostly
cloudy. Waves 1 foot or less.
.SATURDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots
in the morning. Sunny. Waves 1 to 2 feet.

$$

LSZ142-050500-
Taconite Harbor to Silver Bay Harbor MN-
533 PM CST Thu Dec 4 2025

...GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...Southwest wind 20 to 25 knots with gales to around
35 knots becoming west 10 to 15 knots with gusts to around
20 knots late in the night. Chance of snow in the evening.
Freezing spray until early morning. Waves 5 to 8 feet subsiding
to 2 to 4 feet late in the night. Waves occasionally to 10 feet.
.FRIDAY...West wind 5 to 10 knots. Chance of snow in the
afternoon. Waves 1 to 2 feet.
.FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to
around 20 knots. Mostly cloudy. Waves 1 foot or less.
.SATURDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots
early in the morning. Mostly sunny. Waves 1 foot or less.

$$

LSZ143-050500-
Silver Bay Harbor to Two Harbors MN-
533 PM CST Thu Dec 4 2025

...GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...Southwest wind up to 30 knots with gales to around
35 knots becoming west 15 to 20 knots with gusts to around
25 knots after midnight. Freezing spray in the evening. Slight
chance of snow early in the evening. Chance of snow late in the
evening, then slight chance of snow after midnight. Waves 4 to
7 feet subsiding to 2 to 4 feet late in the night. Waves
occasionally to 10 feet.
.FRIDAY...West wind 5 to 10 knots. Gusts up to 20 knots late in
the afternoon. Slight chance of snow in the morning, then chance
of snow in the afternoon. Waves 1 to 2 feet.
.FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to
around 20 knots. Mostly cloudy. Waves 1 foot or less.
.SATURDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots
early in the morning. Mostly sunny. Waves 1 foot or less.

$$

LSZ144-050500-
Two Harbors to Duluth MN-
533 PM CST Thu Dec 4 2025

...GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...Southwest wind up to 30 knots with gales to around
35 knots easing to 15 to 20 knots with gusts to around 25 knots
after midnight. Slight chance of snow until early morning.
Freezing spray late in the evening. Waves 4 to 6 feet subsiding
to 1 to 3 feet late in the night. Waves occasionally to 8 feet.
.FRIDAY...West wind 5 to 10 knots. Gusts up to 20 knots late in
the afternoon. Chance of snow through the day. Waves 1 to 2 feet.
.FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to
around 20 knots. Mostly cloudy. Waves 1 to 2 feet.
.SATURDAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.

$$

LSZ145-050500-
Duluth MN to Port Wing WI-
533 PM CST Thu Dec 4 2025

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

.TONIGHT...Southwest wind 20 to 25 knots with gales to around
35 knots easing to 10 to 15 knots with gusts to around 20 knots
late in the night. Slight chance of snow in the late evening and
early morning. Waves 4 to 6 feet subsiding to 1 to 3 feet late in
the night. Waves occasionally to 7 feet.
.FRIDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
late in the afternoon. Chance of snow. Waves 1 to 2 feet.
.FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to
around 20 knots. Slight chance of snow in the evening. Waves 1 to
2 feet.
.SATURDAY...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 to 10 knots in the afternoon. Partly sunny.
Waves 1 to 2 feet.

$$

LSZ146-050500-
Port Wing to Sand Island WI-
533 PM CST Thu Dec 4 2025

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

.TONIGHT...Southwest wind up to 30 knots with gales to around
40 knots easing to 15 to 20 knots with gusts to around 25 knots
late in the night. Freezing spray until early morning. Slight
chance of snow early in the evening. Chance of snow in the late
evening and early morning, then slight chance of snow late in the
night. Waves 5 to 8 feet subsiding to 3 to 5 feet late in the
night. Waves occasionally to 10 feet.
.FRIDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots easing to 10 knots late in the morning, then becoming
west with gusts to around 20 knots in the afternoon. Chance of
snow. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late
morning and afternoon.
.FRIDAY NIGHT...Northwest wind 10 to 15 knots with gusts to
around 20 knots. Slight chance of snow in the evening. Waves 1 to
2 feet.
.SATURDAY...Northwest wind 10 to 15 knots with gusts to around
25 knots easing to 5 to 10 knots with gusts to around 20 knots in
the late morning and afternoon. Partly sunny. Waves 1 to 2 feet.

$$

LSZ147-050500-
Sand Island to Bayfield WI-
533 PM CST Thu Dec 4 2025

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

.TONIGHT...Southwest wind up to 30 knots easing to 15 to 20 knots
late in the night. Gales up to 40 knots decreasing to 25 knots.
Slight chance of snow early in the evening. Chance of snow in the
late evening and early morning, then slight chance of snow late
in the night. Freezing spray late in the evening. Waves 4 to
7 feet subsiding to 3 to 5 feet late in the night. Waves
occasionally to 9 feet.
.FRIDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots easing to 10 knots late in the morning, then becoming
west with gusts to around 20 knots in the afternoon. Slight
chance of snow in the morning, then chance of snow in the
afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late
morning and afternoon.
.FRIDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to
20 knots increasing to 25 knots in the late evening and early
morning, then decreasing to 20 knots early in the morning. Slight
chance of snow in the evening. Waves 1 to 2 feet.
.SATURDAY...Northwest wind 10 to 15 knots with gusts to around
25 knots easing to 5 knots late in the afternoon. Partly sunny.
Waves 1 to 2 feet.

$$

LSZ150-050500-
Outer Apostle Islands Beyond 5 NM from Mainland-
533 PM CST Thu Dec 4 2025

...GALE WARNING IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...Southwest wind up to 30 knots with gales to around
40 knots easing to 15 to 20 knots with gusts to around 25 knots
late in the night. Freezing spray until early morning. Slight
chance of snow early in the evening. Chance of snow in the late
evening and early morning, then slight chance of snow late in the
night. Waves 6 to 9 feet subsiding to 4 to 6 feet late in the
night. Waves occasionally to 11 feet.
.FRIDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
early in the morning then 20 knots late in the afternoon. Slight
chance of snow in the morning, then chance of snow in the
afternoon. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late
morning and afternoon.
.FRIDAY NIGHT...Northwest wind 15 to 20 knots with gusts to
around 25 knots. Slight chance of snow in the evening. Waves 1 to
3 feet.
.SATURDAY...Northwest wind 10 to 15 knots. Gusts up to 25 knots.
Partly sunny. Waves 1 to 3 feet.

$$

LSZ121-050500-
Chequamegon Bay-Bayfield to Oak Point WI-
533 PM CST Thu Dec 4 2025

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

.TONIGHT...Southwest wind 20 to 25 knots with gales to around
40 knots easing to 10 to 15 knots with gusts to around 20 knots
late in the night. Chance of snow in the late evening and early
morning. Waves 1 to 3 feet subsiding to 1 to 2 feet after
midnight.
.FRIDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 to 10 knots in the afternoon. Chance of
snow. Waves 1 foot or less.
.FRIDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Slight chance of snow in the evening. Waves 1 foot or
less.
.SATURDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots
early in the morning. Mostly cloudy. Waves 1 foot or less.

$$

LSZ148-050500-
Oak Point to Saxon Harbor WI-
533 PM CST Thu Dec 4 2025

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

.TONIGHT...Southwest wind 20 to 25 knots. Gales up to 40 knots
decreasing to 25 knots. Chance of snow in the late evening and
early morning. Waves 3 to 5 feet subsiding to 1 to 3 feet late in
the night.
.FRIDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots. Chance of snow through the day. Waves 1 to 2 feet.
.FRIDAY NIGHT...West wind 15 to 20 knots with gusts to around
25 knots. Chance of snow in the evening, then slight chance of
snow after midnight. Waves 1 to 2 feet.
.SATURDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots
early in the morning. Slight chance of snow in the morning. Waves
1 to 2 feet.

$$

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

WFO DLH