Nearshore Marine Forecast
Issued by NWS Duluth, MN

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043
FZUS53 KDLH 101501
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1001 AM CDT Fri Oct 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.

LSZ140-102215-
Grand Portage to Grand Marais MN-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
35 knots decreasing to 30 knots late. Slight chance of rain
showers through the day. Waves 2 to 4 feet.
.TONIGHT...North wind 10 to 15 knots. Gusts up to 20 knots in the
evening. Mostly clear. Waves 1 to 2 feet.
.SATURDAY...Northeast wind 5 to 10 knots becoming southeast in
the afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...Southeast wind 10 to 15 knots with gusts to
around 30 knots becoming south 15 to 20 knots with gales to
around 35 knots after midnight. Partly cloudy in the evening then
becoming mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet
after midnight. A gale warning may be needed.

$$

LSZ141-102215-
Grand Marais to Taconite Harbor MN-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
30 knots decreasing to 25 knots late. Slight chance of rain
showers early in the afternoon. Waves 1 to 3 feet.
.TONIGHT...North wind 5 to 10 knots. Mostly clear. Waves 1 foot
or less.
.SATURDAY...Northeast wind 5 knots becoming southeast in the late
morning and afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...East wind 5 to 10 knots with gusts to around
20 knots becoming southeast 10 to 15 knots with gusts to around
20 knots after midnight. Partly cloudy in the evening then
becoming mostly cloudy. Waves 1 to 2 feet building to 1 to 3 feet
after midnight.

$$

LSZ142-102215-
Taconite Harbor to Silver Bay Harbor MN-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
30 knots decreasing to 20 knots late. Sunny. Waves 1 to 2 feet.
.TONIGHT...North wind 5 to 10 knots easing to 5 knots early in
the morning. Clear. Waves 1 foot or less.
.SATURDAY...Northeast wind 5 knots becoming east in the late
morning and afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...East wind 5 to 10 knots with gusts to around
20 knots becoming southeast with gusts to around 20 knots after
midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 to 3 feet.

$$

LSZ143-102215-
Silver Bay Harbor to Two Harbors MN-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

.REST OF TODAY...Northwest wind 10 to 15 knots. Gusts up to
25 knots decreasing to 20 knots late. Sunny. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming north after
midnight. Clear. Waves 1 foot or less.
.SATURDAY...Northeast wind 5 knots becoming east in the late
morning and afternoon. Sunny. Waves 1 foot or less.
.SATURDAY NIGHT...East wind 5 to 10 knots with gusts to around
20 knots becoming southeast with gusts to around 20 knots after
midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 to 2 feet.

$$

LSZ144-102215-
Two Harbors to Duluth MN-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
25 knots decreasing to 20 knots in the afternoon. Sunny. Waves
1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming northeast after
midnight. Clear. Waves 1 foot or less.
.SATURDAY...East wind 5 knots rising to 5 to 10 knots. Sunny.
Waves 1 foot or less.
.SATURDAY NIGHT...East wind 5 to 10 knots becoming southeast
10 to 15 knots with gusts to around 20 knots after midnight.
Partly cloudy in the evening then becoming mostly cloudy. Waves
1 to 2 feet.

$$

LSZ145-102215-
Duluth MN to Port Wing WI-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
25 knots decreasing to 20 knots in the afternoon. Sunny. Waves
1 to 3 feet subsiding to 1 to 2 feet late.
.TONIGHT...Northwest wind 5 to 10 knots becoming east early in
the morning. Clear. Waves 1 foot or less.
.SATURDAY...Southeast wind 5 to 10 knots becoming east in the
afternoon. Sunny. Waves 1 foot or less.
.SATURDAY NIGHT...East wind 5 to 10 knots becoming southeast
10 to 15 knots with gusts to around 20 knots after midnight.
Partly cloudy in the evening then becoming mostly cloudy. Waves
1 to 2 feet.

$$

LSZ146-102215-
Port Wing to Sand Island WI-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
30 knots decreasing to 20 knots. Sunny. Waves 2 to 4 feet
subsiding to 1 to 3 feet late.
.TONIGHT...Northwest wind 5 to 10 knots becoming northeast early
in the morning. Clear. Waves 1 to 2 feet.
.SATURDAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less.
.SATURDAY NIGHT...Southeast wind 5 to 10 knots becoming south
after midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 to 2 feet.

$$

LSZ147-102215-
Sand Island to Bayfield WI-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
30 knots decreasing to 20 knots. Sunny. Waves 2 to 4 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming northeast early
in the morning. Clear. Waves 1 to 2 feet.
.SATURDAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less.
.SATURDAY NIGHT...Southeast wind 5 to 10 knots becoming south
with gusts to around 20 knots after midnight. Partly cloudy in
the evening then becoming mostly cloudy. Waves 1 to 2 feet.

$$

LSZ150-102215-
Outer Apostle Islands Beyond 5 NM from Mainland-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.REST OF TODAY...Northwest wind 20 to 25 knots with gusts to
around 30 knots easing to 10 to 15 knots with gusts to around
20 knots late. Mostly sunny. Waves 3 to 5 feet. Waves
occasionally to 7 feet.
.TONIGHT...Northwest wind 10 to 15 knots becoming northeast 5 to
10 knots early in the morning. Partly cloudy. Waves 1 to 3 feet
subsiding to 1 to 2 feet in the late evening and overnight.
.SATURDAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 to
2 feet.
.SATURDAY NIGHT...Southeast wind 5 to 10 knots becoming south
with gusts to around 20 knots after midnight. Partly cloudy in
the evening then becoming mostly cloudy. Waves 1 to 3 feet.

$$

LSZ121-102215-
Chequamegon Bay-Bayfield to Oak Point WI-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
25 knots decreasing to 20 knots late. Sunny. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming northeast early
in the morning. Clear. Waves 1 foot or less.
.SATURDAY...Southeast wind 5 to 10 knots becoming east late in
the afternoon. Sunny. Waves 1 foot or less.
.SATURDAY NIGHT...East wind 5 to 10 knots becoming south with
gusts to around 20 knots in the late evening and overnight.
Partly cloudy in the evening then becoming mostly cloudy. Waves
1 foot or less.

$$

LSZ148-102215-
Oak Point to Saxon Harbor WI-
1001 AM CDT Fri Oct 10 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.REST OF TODAY...Northwest wind 15 to 20 knots. Gusts up to
25 knots decreasing to 20 knots late. Slight chance of rain
showers early in the afternoon. Waves 2 to 4 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming northeast early
in the morning. Mostly clear. Waves 1 to 2 feet.
.SATURDAY...Southeast wind 5 to 10 knots becoming east late in
the afternoon. Sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...East wind 5 to 10 knots becoming south with
gusts to around 20 knots in the late evening and overnight.
Partly cloudy in the evening then becoming mostly cloudy. Waves
1 to 2 feet.

$$

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

Huyck