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FZUS53 KDLH 211918
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
118 PM CST Fri Nov 21 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.

LSZ140-212300-
Grand Portage to Grand Marais MN-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Mostly sunny.
Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming southwest early
in the morning. Partly cloudy. Waves 1 foot or less.
.SATURDAY...Southwest 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 and slight chance of light freezing
drizzle in the morning. Slight chance of drizzle through the day.
Chance of snow in the afternoon. Waves 1 to 2 feet building to
1 to 3 feet in the afternoon.
.SATURDAY NIGHT...West wind 10 to 15 knots with gusts to around
25 knots. Partly cloudy. Waves 1 to 3 feet.

$$

LSZ141-212300-
Grand Marais to Taconite Harbor MN-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...Northwest wind 5 to 10 knots becoming southwest early
in the morning. Mostly clear in the evening then becoming mostly
cloudy. Waves 1 foot or less.
.SATURDAY...South wind 5 to 10 knots becoming west 10 to 15 knots
with gusts to around 20 knots in the afternoon. Chance of
drizzle, sprinkles, flurries and slight chance of light freezing
drizzle in the morning. Waves 1 to 2 feet.
.SATURDAY NIGHT...Northwest 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.

$$

LSZ142-212300-
Taconite Harbor to Silver Bay Harbor MN-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...Northwest wind 5 knots becoming south early in the
morning. Mostly clear in the evening then becoming mostly cloudy.
Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots becoming west 10 to
15 knots with gusts to around 20 knots in the afternoon. Chance
of sprinkles, flurries, slight chance of drizzle and light
freezing drizzle in the morning. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 5 to 10 knots. Gusts up to 25 knots
decreasing to 20 knots early in the morning. Partly cloudy. Waves
1 foot or less.

$$

LSZ143-212300-
Silver Bay Harbor to Two Harbors MN-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...Northwest wind 5 knots becoming southwest after
midnight. Mostly clear in the evening then becoming mostly
cloudy. Waves 1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Chance of sprinkles and flurries in the morning. Waves
1 to 2 feet.
.SATURDAY NIGHT...West wind 5 to 10 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. Mostly clear. Waves 1 foot
or less.

$$

LSZ144-212300-
Two Harbors to Duluth MN-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...Northwest wind 5 knots becoming south after midnight.
Mostly clear in the evening then becoming mostly cloudy. Waves
1 foot or less.
.SATURDAY...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 in the morning then becoming mostly
sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Mostly clear. Waves 1 foot or less.

$$

LSZ145-212300-
Duluth MN to Port Wing WI-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...West wind 5 knots becoming south in the late evening
and overnight. Mostly clear in the evening then becoming mostly
cloudy. Waves 1 foot or less.
.SATURDAY...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 in the morning then becoming mostly
sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Mostly clear. Waves 1 to 2 feet.

$$

LSZ146-212300-
Port Wing to Sand Island WI-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming south after
midnight. Mostly clear in the evening then becoming mostly
cloudy. Waves 1 foot or less.
.SATURDAY...Southwest 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 sprinkles and flurries in
the morning. Waves 1 to 3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. Partly cloudy. Waves 1 to
2 feet.

$$

LSZ147-212300-
Sand Island to Bayfield WI-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...West wind 5 to 10 knots becoming south after midnight.
Mostly clear in the evening then becoming mostly cloudy. Waves
1 foot or less.
.SATURDAY...Southwest 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 sprinkles and flurries in
the morning. Waves 1 to 3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. Partly cloudy. Waves 1 to
2 feet.

$$

LSZ150-212300-
Outer Apostle Islands Beyond 5 NM from Mainland-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 10 to 15 knots. Sunny. Waves 1 to
3 feet subsiding to 1 to 2 feet late.
.TONIGHT...Northwest wind 5 to 10 knots becoming southwest after
midnight. Mostly clear in the evening then becoming mostly
cloudy. Waves 1 to 2 feet.
.SATURDAY...Southwest 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 sprinkles and slight chance
of drizzle in the morning. Waves 1 to 3 feet.
.SATURDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots early in the morning. Partly cloudy. Waves
1 to 3 feet.

$$

LSZ121-212300-
Chequamegon Bay-Bayfield to Oak Point WI-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...West wind 5 knots becoming south after midnight.
Mostly clear in the evening then becoming mostly cloudy. Waves
1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots with gusts to around
20 knots rising to 10 to 15 knots with gusts to around 20 knots
in the afternoon. Mostly cloudy in the morning then becoming
mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 10 knots with gusts to around
20 knots rising to 10 to 15 knots with gusts to around 20 knots
in the late evening and overnight. Mostly clear. Waves 1 foot or
less.

$$

LSZ148-212300-
Oak Point to Saxon Harbor WI-
118 PM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...West wind 5 to 10 knots becoming south after midnight.
Mostly clear in the evening then becoming mostly cloudy. Waves
1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots.
Mostly cloudy in the morning then becoming mostly sunny. Waves
1 to 2 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Partly cloudy. Waves 1 to 2 feet.

$$

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

WFO DLH