Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 101048
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
448 AM CST Mon Nov 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.

LSZ140-101700-
Grand Portage to Grand Marais MN-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...North wind 15 to 20 knots with gusts to around 25 knots
becoming northwest 5 to 10 knots in the afternoon. Mostly sunny.
Waves 1 to 2 feet.
.TONIGHT...West wind 5 knots becoming southwest 15 to 20 knots
with gusts to around 25 knots in the late evening and overnight.
Slight chance of snow in the evening, then chance of snow after
midnight. Waves 1 to 3 feet building to 3 to 5 feet early in the
morning. A small craft advisory may be needed.
.TUESDAY...Southwest wind 15 to 20 knots with gusts to around
30 knots becoming west 10 to 15 knots with gusts to around
20 knots late in the afternoon. Chance of sprinkles and flurries
in the morning. Waves 4 to 7 feet subsiding to 2 to 4 feet late
in the afternoon. Waves occasionally to 9 feet. A small craft
advisory may be needed.
.TUESDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to
25 knots increasing to 30 knots after midnight. Cloudy. Waves
1 to 3 feet subsiding to 1 to 2 feet in the late evening and
early morning, then building to 1 to 3 feet early in the morning.

$$

LSZ141-101700-
Grand Marais to Taconite Harbor MN-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...Northwest wind 10 to 15 knots with gusts to around
25 knots easing to 5 knots late in the afternoon. Mostly sunny.
Waves 1 to 2 feet.
.TONIGHT...West wind 5 knots becoming southwest 15 to 20 knots
with gusts to around 25 knots in the late evening and overnight.
Chance of snow through the night. Waves 1 to 3 feet building to
2 to 4 feet early in the morning. A small craft advisory may be
needed.
.TUESDAY...West wind 15 to 20 knots with gusts to around 25 knots
easing to 10 to 15 knots with gusts to around 20 knots late in
the afternoon. Chance of sprinkles and flurries in the morning.
Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon.
A small craft advisory may be needed.
.TUESDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to
25 knots increasing to 30 knots after midnight. Slight chance of
rain in the evening. Waves 1 to 3 feet.

$$

LSZ142-101700-
Taconite Harbor to Silver Bay Harbor MN-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

.TODAY...Northwest wind 10 to 15 knots with gusts to around
25 knots easing to 5 knots in the afternoon. Mostly sunny. Waves
1 foot or less.
.TONIGHT...Southwest wind 15 to 20 knots with gusts to around
25 knots. Chance of snow in the evening. Snow likely after
midnight. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.TUESDAY...West wind 10 to 15 knots with gusts to around 25 knots
easing to 5 to 10 knots with gusts to around 20 knots late in the
afternoon. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to
2 feet in the afternoon.
.TUESDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to
25 knots increasing to 30 knots after midnight. Mostly cloudy.
Waves 1 to 2 feet.

$$

LSZ143-101700-
Silver Bay Harbor to Two Harbors MN-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.TODAY...Northwest wind 5 to 10 knots with gusts to around
20 knots becoming west late in the afternoon. Mostly sunny. Waves
1 foot or less.
.TONIGHT...Southwest wind 15 to 20 knots with gusts to around
25 knots. Chance of snow in the evening. Chance of flurries after
midnight. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.TUESDAY...West wind 15 to 20 knots with gusts to around 25 knots
easing to 10 to 15 knots with gusts to around 20 knots late in
the afternoon. Partly sunny. Waves 2 to 4 feet subsiding to 1 to
2 feet in the afternoon.
.TUESDAY NIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
increasing to 30 knots after midnight. Mostly cloudy. Waves 1 to
2 feet.

$$

LSZ144-101700-
Two Harbors to Duluth MN-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.TODAY...Northwest wind 5 to 10 knots with gusts to around
20 knots becoming west late in the afternoon. Mostly sunny. Waves
1 foot or less.
.TONIGHT...Southwest wind 15 to 20 knots with gusts to around
25 knots. Chance of snow in the evening. Chance of flurries after
midnight. Waves 1 to 2 feet building to 1 to 3 feet after
midnight.
.TUESDAY...West wind 15 to 20 knots with gusts to around 25 knots
easing to 10 to 15 knots with gusts to around 20 knots late in
the afternoon. Partly sunny. Waves 1 to 3 feet subsiding to 1 to
2 feet in the afternoon.
.TUESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late evening and early morning,
then decreasing to 25 knots early in the morning. Mostly cloudy.
Waves 1 to 3 feet.

$$

LSZ145-101700-
Duluth MN to Port Wing WI-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots becoming west 5 to 10 knots late in the afternoon.
Partly sunny. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 15 to 20 knots with gusts to around
25 knots. Chance of snow in the evening. Chance of flurries after
midnight. Waves 1 to 3 feet.
.TUESDAY...Southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 to 15 knots with gusts to around
25 knots late in the afternoon. Partly sunny. Waves 1 to 3 feet.
.TUESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late evening and overnight. Mostly
cloudy. Waves 2 to 4 feet. A small craft advisory may be needed.

$$

LSZ146-101700-
Port Wing to Sand Island WI-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots becoming west 5 to 10 knots in the afternoon. Mostly
cloudy in the morning then becoming mostly sunny. Waves 1 to
3 feet.
.TONIGHT...Southwest wind 15 to 20 knots. Gusts up to 25 knots.
Chance of snow in the evening, then snow likely after midnight.
Waves 1 to 3 feet.
.TUESDAY...Southwest wind 15 to 20 knots becoming west 10 to
15 knots in the afternoon. Gusts up to 25 knots. Partly sunny.
Waves 1 to 3 feet.
.TUESDAY NIGHT...West wind 15 to 20 knots with gusts to around
30 knots. Mostly cloudy. Waves 2 to 4 feet. A small craft
advisory may be needed.

$$

LSZ147-101700-
Sand Island to Bayfield WI-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 to 10 knots in the afternoon. Chance of
flurries early in the morning. Waves 1 to 3 feet.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming southwest 10 to 15 knots with gusts to around
25 knots early in the morning. Chance of snow in the evening,
then snow likely after midnight. Waves 1 to 2 feet.
.TUESDAY...Southwest wind 10 to 15 knots becoming west late in
the afternoon. Gusts up to 25 knots. Partly sunny. Waves 1 to
3 feet.
.TUESDAY NIGHT...West wind 15 to 20 knots with gusts to around
30 knots. Mostly cloudy. Waves 1 to 3 feet building to 2 to
4 feet in the late evening and overnight. A small craft advisory
may be needed.

$$

LSZ150-101700-
Outer Apostle Islands Beyond 5 NM from Mainland-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.TODAY...Northwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 knots late in the afternoon. Mostly
cloudy until late afternoon then becoming mostly sunny. Waves
2 to 4 feet subsiding to 1 to 3 feet in the afternoon.
.TONIGHT...Southwest wind 15 to 20 knots becoming southwest 15 to
20 knots with gusts to around 25 knots early in the morning.
Chance of snow in the evening, then chance of flurries after
midnight. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.TUESDAY...Southwest wind 15 to 20 knots becoming west late in
the afternoon. Gusts up to 25 knots. Mostly cloudy. Waves 2 to
4 feet.
.TUESDAY NIGHT...West wind 20 to 25 knots. Gusts up to 30 knots
increasing to 35 knots after midnight. Slight chance of rain
after midnight. Waves 3 to 5 feet. Waves occasionally to 7 feet.
A gale warning may be needed.

$$

LSZ121-101700-
Chequamegon Bay-Bayfield to Oak Point WI-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots becoming west 5 to 10 knots in the afternoon. Chance of
flurries early in the morning. Waves 1 foot or less.
.TONIGHT...Southwest wind 15 to 20 knots with gusts to around
25 knots. Chance of snow in the evening, then snow likely after
midnight. Waves 1 to 2 feet.
.TUESDAY...Southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 to 15 knots with gusts to around
20 knots in the afternoon. Partly sunny. Waves 1 to 2 feet.
.TUESDAY NIGHT...West wind 15 to 20 knots with gusts to around
25 knots. Mostly cloudy. Waves 1 to 2 feet.

$$

LSZ148-101700-
Oak Point to Saxon Harbor WI-
448 AM CST Mon Nov 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS
MORNING...

.TODAY...Northwest wind 15 to 20 knots becoming west 10 knots
late in the afternoon. Chance of flurries in the morning. Waves
1 to 3 feet.
.TONIGHT...Southwest wind 15 to 20 knots with gusts to around
25 knots. Chance of snow in the evening, then snow likely after
midnight. Waves 1 to 2 feet.
.TUESDAY...Southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 to 15 knots with gusts to around
25 knots late in the afternoon. Mostly cloudy. Waves 1 to 2 feet.
.TUESDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots after midnight. Slight chance of rain.
Waves 1 to 3 feet building to 2 to 4 feet after midnight.

$$

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

WFO DLH