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FZUS53 KDLH 111623
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1023 AM CST Thu Dec 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.

LSZ140-112300-
Grand Portage to Grand Marais MN-
1023 AM CST Thu Dec 11 2025

...GALE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY
AFTERNOON...

.REST OF TODAY...North wind 5 knots becoming northwest in the
afternoon. Partly sunny. Waves 1 foot or less.
.TONIGHT...Northwest wind 5 to 10 knots. Chance of flurries after
midnight. Waves 1 foot or less.
.FRIDAY...West wind 15 to 20 knots with gusts to around 30 knots.
Snow likely in the morning, then chance of snow in the afternoon.
Waves 1 to 2 feet.
.FRIDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to
30 knots increasing to 35 knots in the late evening and
overnight. Chance of flurries in the evening. Waves 2 to 4 feet.
A gale warning may be needed.

$$

LSZ141-112300-
Grand Marais to Taconite Harbor MN-
1023 AM CST Thu Dec 11 2025

...GALE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY
AFTERNOON...

.REST OF TODAY...Northwest wind 5 knots becoming west in the
afternoon. Partly sunny. Waves 1 foot or less.
.TONIGHT...Northwest wind 5 knots. Chance of flurries after
midnight. Waves 1 foot or less.
.FRIDAY...Northwest wind 15 to 20 knots with gusts to around
30 knots. Snow likely in the morning, then chance of snow in the
afternoon. Waves 1 to 2 feet.
.FRIDAY NIGHT...Northwest wind 15 to 20 knots with gales to
around 35 knots. Partly cloudy. Waves 1 to 3 feet. A gale warning
may be needed.

$$

LSZ142-112300-
Taconite Harbor to Silver Bay Harbor MN-
1023 AM CST Thu Dec 11 2025

...GALE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY
AFTERNOON...

.REST OF TODAY...Northwest wind 5 knots becoming west in the
afternoon. Partly sunny. Waves 1 foot or less.
.TONIGHT...Northwest wind 5 knots. Chance of flurries after
midnight. Waves 1 foot or less.
.FRIDAY...West wind 15 to 20 knots with gusts to around 30 knots.
Snow likely in the morning, then chance of snow in the afternoon.
Waves 1 to 2 feet.
.FRIDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to
35 knots decreasing to 30 knots early in the morning. Partly
cloudy. Waves 1 to 2 feet. A gale warning may be needed.

$$

LSZ143-112300-
Silver Bay Harbor to Two Harbors MN-
1023 AM CST Thu Dec 11 2025

...GALE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY
AFTERNOON...

.REST OF TODAY...Northwest wind 5 knots becoming southwest in the
afternoon. Mostly sunny in the late morning and early afternoon
then becoming mostly cloudy. Waves 1 foot or less.
.TONIGHT...West wind 5 knots. Chance of flurries after midnight.
Waves 1 foot or less.
.FRIDAY...West wind 15 to 20 knots with gusts to around 30 knots.
Snow likely in the morning, then slight chance of snow in the
afternoon. Waves 1 to 3 feet.
.FRIDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to
35 knots decreasing to 30 knots after midnight. Partly cloudy.
Waves 1 to 3 feet. A gale warning may be needed.

$$

LSZ144-112300-
Two Harbors to Duluth MN-
1023 AM CST Thu Dec 11 2025

.REST OF TODAY...Southwest wind 5 knots. Partly sunny. Waves
1 foot or less.
.TONIGHT...West wind 5 to 10 knots. Chance of flurries after
midnight. Waves 1 foot or less.
.FRIDAY...West wind 15 to 20 knots with gusts to around 30 knots.
Snow likely in the morning, then chance of flurries in the
afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon.
.FRIDAY NIGHT...Northwest wind 20 to 25 knots with gusts to
around 30 knots. Partly cloudy. Waves 2 to 4 feet. A small craft
advisory may be needed.

$$

LSZ145-112300-
Duluth MN to Port Wing WI-
1023 AM CST Thu Dec 11 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Partly sunny.
Waves 1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots. Chance of flurries after
midnight. Waves 1 foot or less.
.FRIDAY...West wind 20 to 25 knots with gusts to around 30 knots.
Snow likely in the morning, then chance of flurries in the
afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the
afternoon. Waves occasionally to 7 feet. A small craft advisory
may be needed.
.FRIDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to
30 knots in the evening. Heavy freezing spray in the evening.
Waves 4 to 6 feet. Waves occasionally to 8 feet. A small craft
advisory may be needed.

$$

LSZ146-112300-
Port Wing to Sand Island WI-
1023 AM CST Thu Dec 11 2025

.REST OF TODAY...Southwest wind 5 knots. Partly sunny. Waves
1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots. Slight chance of snow
after midnight. Waves 1 foot or less.
.FRIDAY...West wind 15 to 20 knots with gusts to around 25 knots
becoming northwest 20 to 25 knots with gusts to around 30 knots
late in the afternoon. Snow likely in the morning, then chance of
snow in the afternoon. Waves 1 to 2 feet building to 3 to 5 feet
in the afternoon. A small craft advisory may be needed.
.FRIDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to
30 knots in the evening. Heavy freezing spray in the evening.
Chance of flurries through the night. Waves 4 to 6 feet. Waves
occasionally to 8 feet. A small craft advisory may be needed.

$$

LSZ147-112300-
Sand Island to Bayfield WI-
1023 AM CST Thu Dec 11 2025

.REST OF TODAY...West wind 5 knots. Mostly cloudy. Waves 1 foot
or less.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.
.FRIDAY...West wind 15 to 20 knots with gusts to around 25 knots
becoming northwest 20 to 25 knots with gusts to around 30 knots
late in the afternoon. Snow likely in the morning, then chance of
snow in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet
late in the afternoon. A small craft advisory may be needed.
.FRIDAY NIGHT...Northwest wind 20 to 25 knots. Gusts up to
30 knots in the evening. Slight chance of snow in the evening,
then chance of flurries after midnight. Waves 2 to 4 feet. A
small craft advisory may be needed.

$$

LSZ150-112300-
Outer Apostle Islands Beyond 5 NM from Mainland-
1023 AM CST Thu Dec 11 2025

.REST OF TODAY...West wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.
.FRIDAY...West wind 15 to 20 knots with gusts to around 25 knots
becoming northwest 20 to 25 knots with gusts to around 30 knots
late in the afternoon. Chance of snow. Waves 1 to 2 feet building
to 2 to 4 feet in the afternoon. A small craft advisory may be
needed.
.FRIDAY NIGHT...Northwest wind 20 to 25 knots with gusts to
around 30 knots. Chance of snow. Waves 4 to 6 feet. Waves
occasionally to 7 feet. A small craft advisory may be needed.

$$

LSZ121-112300-
Chequamegon Bay-Bayfield to Oak Point WI-
1023 AM CST Thu Dec 11 2025

.REST OF TODAY...Southwest wind 5 knots. Partly sunny. Waves
1 foot or less.
.TONIGHT...Southwest wind 5 knots. Mostly cloudy. Waves 1 foot or
less.
.FRIDAY...Southwest wind 5 to 10 knots with gusts to around
20 knots becoming west 15 to 20 knots with gusts to around
25 knots in the afternoon. Snow likely. Waves 1 to 2 feet.
.FRIDAY NIGHT...West wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 25 knots in the late evening and overnight. Slight
chance of snow. Waves 1 to 2 feet.

$$

LSZ148-112300-
Oak Point to Saxon Harbor WI-
1023 AM CST Thu Dec 11 2025

.REST OF TODAY...Southwest wind 5 knots. Partly sunny. Waves
1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.
.FRIDAY...West wind 15 to 20 knots with gusts to around 25 knots
rising to 20 to 25 knots with gusts to around 30 knots late in
the afternoon. Snow likely. Waves 1 to 2 feet building to 2 to
4 feet late in the afternoon. A small craft advisory may be
needed.
.FRIDAY NIGHT...West wind 20 to 25 knots. Gusts up to 30 knots in
the evening. Chance of snow. Waves 3 to 5 feet. A small craft
advisory may be needed.

$$

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

WFO DLH