Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 220621
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1221 AM CST Sat Nov 22 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.

LSZ140-221700-
Grand Portage to Grand Marais MN-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...South wind 10 to 15 knots with gusts to around 20 knots
becoming west with gusts to around 20 knots late in the
afternoon. Snow likely with possible sprinkles, drizzle and
freezing drizzle in the morning. Chance of snow and slight chance
of drizzle in the afternoon. Waves 1 to 2 feet building to 1 to
3 feet in the afternoon.
.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
25 knots. Partly cloudy. Waves 1 to 3 feet.
.SUNDAY...West wind 10 to 15 knots with gusts to around 25 knots
becoming southwest 5 to 10 knots late in the afternoon. Mostly
sunny. Waves 1 to 2 feet.
.SUNDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 to 2 feet.

$$

LSZ141-221700-
Grand Marais to Taconite Harbor MN-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...South wind 10 to 15 knots becoming southwest with gusts
to around 20 knots in the afternoon. Chance of sprinkles,
flurries, slight chance of drizzle and light freezing drizzle
early in the morning, then chance of drizzle and snow late in the
morning. Chance of sprinkles and slight chance of drizzle early
in the afternoon. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
25 knots. Partly cloudy. Waves 1 to 2 feet.
.SUNDAY...West wind 5 to 10 knots with gusts to around 20 knots
becoming southwest late in the afternoon. Mostly sunny in the
morning then becoming mostly cloudy. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 knots. Mostly cloudy. Waves
1 foot or less.

$$

LSZ142-221700-
Taconite Harbor to Silver Bay Harbor MN-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...South wind 5 to 10 knots becoming west with gusts to
around 20 knots in the afternoon. Chance of flurries and slight
chance of light freezing drizzle early in the morning. Chance of
sprinkles and slight chance of drizzle in the morning. Waves 1 to
2 feet.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots early in the morning. Partly cloudy. Waves
1 to 2 feet.
.SUNDAY...West wind 5 knots with gusts to around 20 knots
becoming southwest late in the afternoon. Partly sunny. Waves
1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 knots. Mostly cloudy. Waves
1 foot or less.

$$

LSZ143-221700-
Silver Bay Harbor to Two Harbors MN-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...South wind 10 to 15 knots with gusts to around 20 knots
becoming west with gusts to around 20 knots in the afternoon.
Chance of flurries early in the morning. Chance of sprinkles in
the morning. Waves 1 to 2 feet.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. Mostly clear. Waves 1 to
2 feet.
.SUNDAY...West wind 5 to 10 knots becoming southwest late in the
afternoon. Partly sunny. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 knots. Mostly cloudy in the
evening then becoming partly cloudy. Waves 1 foot or less.

$$

LSZ144-221700-
Two Harbors to Duluth MN-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Mostly cloudy until late afternoon then clearing.
Waves 1 to 2 feet.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots until
early morning. Mostly clear. Waves 1 to 2 feet.
.SUNDAY...West wind 5 to 10 knots becoming southwest late in the
afternoon. Partly sunny. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 to 10 knots. Partly cloudy.
Waves 1 foot or less.

$$

LSZ145-221700-
Duluth MN to Port Wing WI-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Mostly cloudy until late afternoon then clearing.
Waves 1 to 3 feet.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots until
early morning. Mostly clear. Waves 1 to 3 feet.
.SUNDAY...Southwest wind 5 to 10 knots. Partly sunny. Waves
1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 to 10 knots. Partly cloudy.
Waves 1 foot or less.

$$

LSZ146-221700-
Port Wing to Sand Island WI-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...South wind 10 to 15 knots with gusts to around 20 knots
becoming west with gusts to around 25 knots in the afternoon.
Chance of flurries early in the morning. Chance of sprinkles in
the morning. Waves 1 to 2 feet building to 2 to 4 feet in the
afternoon.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots early in the morning. Partly cloudy. Waves
1 to 3 feet.
.SUNDAY...Southwest wind 5 to 10 knots. Partly sunny. Waves 1 to
2 feet.
.SUNDAY NIGHT...Southwest wind 5 knots. Mostly cloudy. Waves
1 foot or less.

$$

LSZ147-221700-
Sand Island to Bayfield WI-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...South wind 10 to 15 knots with gusts to around 20 knots
becoming west 15 to 20 knots with gusts to around 25 knots in the
afternoon. Chance of flurries early in the morning. Chance of
sprinkles in the morning. Waves 1 foot or less building to 2 to
4 feet in the afternoon.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots early in the morning. Partly cloudy. Waves
1 to 3 feet.
.SUNDAY...West wind 5 to 10 knots with gusts to around 20 knots
becoming southwest late in the afternoon. Mostly sunny. Waves
1 to 2 feet.
.SUNDAY NIGHT...Southwest wind 5 knots. Mostly cloudy. Waves
1 foot or less.

$$

LSZ150-221700-
Outer Apostle Islands Beyond 5 NM from Mainland-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...South wind 10 to 15 knots with gusts to around 20 knots
becoming west 15 to 20 knots with gusts to around 25 knots in the
afternoon. Chance of flurries early in the morning. Chance of
sprinkles until late afternoon. Slight chance of drizzle late in
the morning. Waves 1 to 3 feet building to 3 to 5 feet in the
afternoon.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots early in the morning. Partly cloudy. Waves
2 to 4 feet.
.SUNDAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming southwest 5 to 10 knots late in the afternoon. Mostly
sunny. Waves 1 to 2 feet.
.SUNDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 foot or less.

$$

LSZ121-221700-
Chequamegon Bay-Bayfield to Oak Point WI-
1221 AM CST Sat Nov 22 2025

.TODAY...South wind 5 to 10 knots with gusts to around 20 knots
becoming southwest 10 to 15 knots with gusts to around 20 knots
in the afternoon. Mostly cloudy until late afternoon then
clearing. Waves 1 foot or less.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots until
early morning. Mostly clear. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 to 10 knots. Partly cloudy.
Waves 1 foot or less.

$$

LSZ148-221700-
Oak Point to Saxon Harbor WI-
1221 AM CST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
LATE TONIGHT...

.TODAY...South wind 10 knots becoming southwest in the late
morning and early afternoon, then becoming west late in the
afternoon. Gusts up to 20 knots. Chance of sprinkles late in the
morning. Waves 1 to 2 feet.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. Partly cloudy. Waves 1 to
2 feet.
.SUNDAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy in
the evening then becoming partly cloudy. Waves 1 foot or less.

$$

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

WFO DLH