733
FZUS53 KDLH 031954
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
254 PM CDT Fri Oct 3 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.

LSZ140-040415-
Grand Portage to Grand Marais MN-
254 PM CDT Fri Oct 3 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...East wind 5 to 10 knots. Patchy fog after midnight.
Waves 1 foot or less.
.SATURDAY...South wind 5 to 10 knots. Gusts up to 25 knots.
Mostly sunny. Waves 1 to 2 feet building to 1 to 3 feet in the
afternoon.
.SATURDAY NIGHT...South wind 15 to 20 knots with gusts to around
25 knots. Partly cloudy. Waves 3 to 5 feet. Waves occasionally to
7 feet. A small craft advisory may be needed.
.SUNDAY...South wind 20 to 25 knots. Gusts up to 30 knots
increasing to 45 knots. Slight chance of rain showers in the
afternoon. Waves 6 to 9 feet. Waves occasionally to 11 feet. A
gale warning may be needed.

$$

LSZ141-040415-
Grand Marais to Taconite Harbor MN-
254 PM CDT Fri Oct 3 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...East wind 5 to 10 knots. Patchy fog in the late
evening and overnight. Waves 1 foot or less.
.SATURDAY...Southeast wind 5 knots. Mostly 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. Waves 1 to 3 feet.
.SUNDAY...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 35 knots. Slight chance of showers in the
afternoon. Waves 4 to 6 feet. Waves occasionally to 8 feet. A
gale warning may be needed.

$$

LSZ142-040415-
Taconite Harbor to Silver Bay Harbor MN-
254 PM CDT Fri Oct 3 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...Northeast wind 5 to 10 knots. Patchy fog in the late
evening and early morning. Waves 1 foot or less.
.SATURDAY...Southeast wind 5 to 10 knots. Gusts up to 20 knots
early in the afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...Southeast wind 5 knots becoming south with
gusts to around 25 knots in the late evening and overnight.
Partly cloudy. Waves 1 to 3 feet.
.SUNDAY...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 35 knots. Slight chance of showers in the
afternoon. Waves 4 to 6 feet. Waves occasionally to 7 feet. A
gale warning may be needed.

$$

LSZ143-040415-
Silver Bay Harbor to Two Harbors MN-
254 PM CDT Fri Oct 3 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...Northeast wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots late in the night. Partly cloudy.
Waves 1 to 2 feet.
.SATURDAY...East wind 5 knots becoming southeast with gusts to
around 20 knots in the late morning and afternoon. Mostly sunny.
Waves 1 to 2 feet.
.SATURDAY NIGHT...Southeast wind 5 to 10 knots with gusts to
around 20 knots becoming south 10 to 15 knots with gusts to
around 25 knots in the late evening and overnight. Partly cloudy.
Waves 1 to 2 feet building to 2 to 4 feet in the late evening and
overnight. A small craft advisory may be needed.
.SUNDAY...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 35 knots. Slight chance of showers in the
afternoon. Waves 4 to 6 feet. Waves occasionally to 8 feet. A
gale warning may be needed.

$$

LSZ144-040415-
Two Harbors to Duluth MN-
254 PM CDT Fri Oct 3 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...
...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots.
Partly cloudy. Waves 1 to 2 feet.
.SATURDAY...Southeast wind 5 to 10 knots becoming south 10 to
15 knots with gusts to around 25 knots in the late morning and
afternoon. Mostly sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...South wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots in the late evening and overnight. Partly
cloudy. Waves 2 to 4 feet. A small craft advisory may be needed.
.SUNDAY...South wind 20 to 25 knots. Gusts up to 25 knots
increasing to 35 knots in the late morning and afternoon. Slight
chance of showers in the afternoon. Waves 4 to 7 feet. Waves
occasionally to 9 feet. A gale warning may be needed.

$$

LSZ145-040415-
Duluth MN to Port Wing WI-
254 PM CDT Fri Oct 3 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...
...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...Northeast wind 10 to 15 knots with gusts to around
20 knots becoming east 5 to 10 knots late in the night. Partly
cloudy until early morning then becoming mostly cloudy. Waves
1 to 2 feet.
.SATURDAY...South wind 10 to 15 knots. Gusts up to 25 knots.
Mostly sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late evening and overnight. Partly
cloudy. Waves 1 to 2 feet building to 2 to 4 feet in the late
evening and overnight.
.SUNDAY...South wind 20 to 25 knots. Gusts up to 25 knots
increasing to 35 knots. Slight chance of showers in the
afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. A
gale warning may be needed.

$$

LSZ146-040415-
Port Wing to Sand Island WI-
254 PM CDT Fri Oct 3 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...Northeast wind 10 to 15 knots with gusts to around
20 knots becoming east 5 knots late in the night. Partly cloudy.
Waves 1 to 2 feet.
.SATURDAY...South wind 10 to 15 knots with gusts to around
20 knots. Mostly sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...South wind 10 to 15 knots with gusts to around
25 knots. Partly cloudy. Waves 1 to 3 feet.
.SUNDAY...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 35 knots. Slight chance of showers in the
afternoon. Waves 1 to 3 feet building to 3 to 5 feet in the late
morning and afternoon. A gale warning may be needed.

$$

LSZ147-040415-
Sand Island to Bayfield WI-
254 PM CDT Fri Oct 3 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...East wind 5 to 10 knots becoming south late in the
night. Patchy fog after midnight. Waves 1 foot or less.
.SATURDAY...South wind 10 to 15 knots. Gusts up to 25 knots.
Mostly sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...South wind 10 to 15 knots with gusts to around
25 knots. Partly cloudy. Waves 1 to 2 feet.
.SUNDAY...South wind 10 to 15 knots. Gusts up to 25 knots
increasing to 30 knots in the late morning and afternoon. Slight
chance of showers in the afternoon. Waves 1 to 2 feet building to
1 to 3 feet late in the afternoon.

$$

LSZ150-040415-
Outer Apostle Islands Beyond 5 NM from Mainland-
254 PM CDT Fri Oct 3 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...East wind 5 to 10 knots becoming south late in the
night. Patchy fog until early morning. Waves 1 foot or less.
.SATURDAY...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Sunny. Waves 1 to 3 feet
building to 2 to 4 feet late in the afternoon.
.SATURDAY NIGHT...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late evening and overnight. Partly
cloudy. Waves 2 to 4 feet. A small craft advisory may be needed.
.SUNDAY...South wind 15 to 20 knots. Gusts up to 30 knots
increasing to 35 knots late in the afternoon. Slight chance of
showers in the afternoon. Waves 4 to 6 feet. Waves occasionally
to 7 feet. A gale warning may be needed.

$$

LSZ121-040415-
Chequamegon Bay-Bayfield to Oak Point WI-
254 PM CDT Fri Oct 3 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...Northeast wind 5 to 10 knots becoming south after
midnight. Partly cloudy. Waves 1 foot or less.
.SATURDAY...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 30 knots. Sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots late in the evening, then decreasing to
25 knots after midnight increasing to 30 knots early in the
morning. Partly cloudy. Waves 1 to 2 feet.
.SUNDAY...South wind 20 to 25 knots. Gusts up to 30 knots
increasing to 35 knots late in the afternoon. Slight chance of
showers in the afternoon. Waves 1 to 3 feet building to 2 to
4 feet in the afternoon. A gale warning may be needed.

$$

LSZ148-040415-
Oak Point to Saxon Harbor WI-
254 PM CDT Fri Oct 3 2025

...GALE WATCH IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY
EVENING...

.TONIGHT...East wind 5 to 10 knots becoming south after midnight.
Patchy fog in the evening. Waves 1 foot or less.
.SATURDAY...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 30 knots. Sunny. Waves 1 to 3 feet.
.SATURDAY NIGHT...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late evening and overnight. Partly
cloudy. Waves 1 to 3 feet.
.SUNDAY...South wind 20 to 25 knots. Gusts up to 30 knots
increasing to 35 knots in the afternoon. Slight chance of showers
in the afternoon. Waves 3 to 5 feet. A gale warning may be
needed.

$$

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

Rothstein