Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 101702
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1102 AM CST Wed Dec 10 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.

LSZ140-102300-
Grand Portage to Grand Marais MN-
1102 AM CST Wed Dec 10 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
25 knots in the afternoon. Sunny. Waves 1 to 3 feet.
.TONIGHT...Northwest wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 25 knots in the late evening and overnight. Partly
cloudy. Waves 1 to 3 feet.
.THURSDAY...Northwest wind 5 to 10 knots with gusts to around
20 knots becoming west in the afternoon. Mostly sunny. Waves
1 foot or less.
.THURSDAY NIGHT...Northwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 foot or less.

$$

LSZ141-102300-
Grand Marais to Taconite Harbor MN-
1102 AM CST Wed Dec 10 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF TODAY...Northwest wind 10 to 15 knots. Gusts up to
20 knots increasing to 25 knots late. Mostly sunny. Waves 1 to
2 feet.
.TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots early in the morning. Partly cloudy. Waves
1 foot or less.
.THURSDAY...Northwest wind 5 knots becoming west in the
afternoon. Mostly sunny in the morning then becoming mostly
cloudy. Waves 1 foot or less.
.THURSDAY NIGHT...Northwest wind 5 knots. Mostly cloudy. Waves
1 foot or less.

$$

LSZ142-102300-
Taconite Harbor to Silver Bay Harbor MN-
1102 AM CST Wed Dec 10 2025

.REST OF TODAY...Northwest wind 10 to 15 knots. Gusts up to
25 knots. Mostly sunny. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 25 knots
until early morning. Mostly clear. Waves 1 foot or less.
.THURSDAY...Northwest wind 5 knots becoming southwest in the
afternoon. Partly sunny. Waves 1 foot or less.
.THURSDAY NIGHT...West wind 5 knots. Mostly cloudy. Waves 1 foot
or less.

$$

LSZ143-102300-
Silver Bay Harbor to Two Harbors MN-
1102 AM CST Wed Dec 10 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Gusts up to
20 knots late. Mostly sunny. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots in
the evening. Mostly clear. Waves 1 to 2 feet.
.THURSDAY...West wind 5 knots becoming southwest in the
afternoon. Mostly sunny in the morning then becoming mostly
cloudy. Waves 1 foot or less.
.THURSDAY NIGHT...West wind 5 knots. Slight chance of snow after
midnight. Waves 1 foot or less.

$$

LSZ144-102300-
Two Harbors to Duluth MN-
1102 AM CST Wed Dec 10 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Chance of flurries
late in the morning. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 10 to 15 knots. Mostly clear. Waves
1 to 2 feet.
.THURSDAY...West wind 5 knots becoming southwest in the
afternoon. Partly sunny. Waves 1 foot or less.
.THURSDAY NIGHT...West wind 5 to 10 knots. Slight chance of snow
after midnight. Waves 1 foot or less.

$$

LSZ145-102300-
Duluth MN to Port Wing WI-
1102 AM CST Wed Dec 10 2025

.REST OF TODAY...Northwest wind 10 to 15 knots. Chance of
flurries late in the morning. Waves 1 to 3 feet.
.TONIGHT...Northwest wind 10 to 15 knots. Partly cloudy. Waves
1 to 2 feet.
.THURSDAY...Southwest wind 5 to 10 knots. Partly sunny. Waves
1 foot or less.
.THURSDAY NIGHT...Southwest wind 5 to 10 knots. Slight chance of
snow through the night. Waves 1 foot or less.

$$

LSZ146-102300-
Port Wing to Sand Island WI-
1102 AM CST Wed Dec 10 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Mostly sunny.
Waves 2 to 4 feet subsiding to 1 to 2 feet late.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
early in the evening. Partly cloudy. Waves 1 to 2 feet.
.THURSDAY...West wind 5 knots. Mostly cloudy. Waves 1 foot or
less.
.THURSDAY NIGHT...Southwest wind 5 to 10 knots. Slight chance of
snow after midnight. Waves 1 foot or less.

$$

LSZ147-102300-
Sand Island to Bayfield WI-
1102 AM CST Wed Dec 10 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Gusts up to
20 knots late. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to
2 feet late.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
early in the evening. Partly cloudy in the evening then becoming
mostly cloudy. Waves 1 to 2 feet.
.THURSDAY...West wind 5 knots. Mostly cloudy. Waves 1 foot or
less.
.THURSDAY NIGHT...Southwest wind 5 knots. Slight chance of snow
after midnight. Waves 1 foot or less.

$$

LSZ150-102300-
Outer Apostle Islands Beyond 5 NM from Mainland-
1102 AM CST Wed Dec 10 2025

.REST OF TODAY...Northwest wind 10 to 15 knots with gusts to
around 20 knots. Mostly sunny. Waves 4 to 6 feet subsiding to
2 to 4 feet late. Waves occasionally to 8 feet.
.TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots in
the evening. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late
evening and overnight.
.THURSDAY...West wind 5 to 10 knots. Mostly cloudy. Waves 1 foot
or less.
.THURSDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 foot or less.

$$

LSZ121-102300-
Chequamegon Bay-Bayfield to Oak Point WI-
1102 AM CST Wed Dec 10 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Mostly cloudy late
in the morning then becoming mostly sunny. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming west early in
the morning. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.
.THURSDAY...Southwest wind 5 knots. Partly sunny. Waves 1 foot or
less.
.THURSDAY NIGHT...Southwest wind 5 knots. Mostly cloudy. Waves
1 foot or less.

$$

LSZ148-102300-
Oak Point to Saxon Harbor WI-
1102 AM CST Wed Dec 10 2025

.REST OF TODAY...Northwest wind 10 to 15 knots with gusts to
around 20 knots. Mostly cloudy late in the morning then becoming
mostly sunny. Waves 4 to 6 feet. Waves occasionally to 8 feet.
.TONIGHT...Northwest wind 5 to 10 knots. Mostly cloudy. Waves
1 to 3 feet subsiding to 1 to 2 feet in the late evening and
overnight.
.THURSDAY...Southwest wind 5 to 10 knots. Partly sunny. Waves
1 foot or less.
.THURSDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 foot or less.

$$

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

WFO DLH