991
FZUS53 KDLH 120224
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
924 PM CDT Sat Oct 11 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.

LSZ140-121015-
Grand Portage to Grand Marais MN-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON...

.REST OF TONIGHT...Southeast wind 15 to 20 knots becoming south
after midnight. Gusts up to 25 knots. Partly cloudy in the late
evening and early morning then becoming mostly cloudy. Waves 3 to
5 feet. Waves occasionally to 7 feet.
.SUNDAY...Southeast wind 15 to 20 knots with gusts to around
25 knots. Chance of rain showers in the afternoon. Waves 3 to
5 feet. Waves occasionally to 7 feet.
.SUNDAY NIGHT...South wind 15 to 20 knots. Gusts up to 30 knots.
Rain showers. Waves 4 to 7 feet. Waves occasionally to 9 feet.
.MONDAY...West wind 15 to 20 knots with gusts to around 25 knots.
Rain showers in the morning. Waves 4 to 7 feet subsiding to 2 to
4 feet in the afternoon. Waves occasionally to 9 feet.

$$

LSZ141-121015-
Grand Marais to Taconite Harbor MN-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TONIGHT...East wind 10 to 15 knots becoming south after
midnight. Gusts up to 20 knots. Partly cloudy in the late evening
and early morning then becoming mostly cloudy. Waves 1 to 3 feet.
.SUNDAY...Southeast wind 10 to 15 knots with gusts to around
20 knots. Chance of rain showers in the afternoon. Waves 2 to
4 feet.
.SUNDAY NIGHT...Southeast wind 10 to 15 knots becoming south
after midnight. Gusts up to 25 knots. Rain showers likely in the
evening, then rain showers after midnight. Waves 3 to 5 feet.
Waves occasionally to 7 feet.
.MONDAY...West wind 10 to 15 knots with gusts to around 20 knots.
Sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the
afternoon.

$$

LSZ142-121015-
Taconite Harbor to Silver Bay Harbor MN-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING...

.REST OF TONIGHT...East wind 10 to 15 knots becoming south with
gusts to around 20 knots after midnight. Partly cloudy in the
late evening and early morning then becoming mostly cloudy. Waves
1 to 3 feet.
.SUNDAY...Southeast wind 10 to 15 knots with gusts to around
20 knots. Chance of rain showers in the afternoon. Waves 1 to
3 feet.
.SUNDAY NIGHT...Southeast wind 10 to 15 knots with gusts to
around 20 knots becoming southwest 5 to 10 knots with gusts to
around 25 knots after midnight. Rain showers in the evening, then
rain showers likely after midnight. Waves 1 to 3 feet.
.MONDAY...West wind 5 to 10 knots with gusts to around 20 knots.
Sunny. Waves 1 to 2 feet.

$$

LSZ143-121015-
Silver Bay Harbor to Two Harbors MN-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY AFTERNOON THROUGH
MONDAY MORNING...

.REST OF TONIGHT...East wind 10 to 15 knots becoming south 5 to
10 knots with gusts to around 20 knots after midnight. Partly
cloudy in the late evening and early morning then becoming mostly
cloudy. Waves 1 to 2 feet.
.SUNDAY...Southeast wind 10 to 15 knots. Gusts up to 20 knots in
the morning then 20 knots late in the afternoon. Chance of rain
showers in the afternoon. Waves 1 to 2 feet.
.SUNDAY NIGHT...Southeast wind 10 to 15 knots becoming southwest
after midnight. Gusts up to 25 knots. Rain showers in the
evening, then rain showers likely after midnight. Waves 1 to
2 feet building to 2 to 4 feet in the late evening and overnight.
.MONDAY...West wind 10 to 15 knots easing to 5 to 10 knots in the
late morning and afternoon. Gusts up to 20 knots. Sunny. Waves
1 to 3 feet.

$$

LSZ144-121015-
Two Harbors to Duluth MN-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TONIGHT...East wind 10 to 15 knots becoming southeast
with gusts to around 25 knots after midnight. Partly cloudy late
in the evening then becoming mostly cloudy. Waves 1 to 2 feet.
.SUNDAY...Southeast wind 15 to 20 knots with gusts to around
25 knots. Slight chance of rain showers in the morning, then
chance of rain showers in the afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...South wind 15 to 20 knots with gusts to around
30 knots becoming southwest with gusts to around 25 knots early
in the morning. Rain showers. Waves 2 to 4 feet.
.MONDAY...West wind 10 to 15 knots with gusts to around 20 knots.
Sunny. Waves 1 to 3 feet.

$$

LSZ145-121015-
Duluth MN to Port Wing WI-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING...

.REST OF TONIGHT...Southeast wind 10 to 15 knots. Gusts up to
25 knots. Partly cloudy late in the evening then becoming mostly
cloudy. Waves 1 to 2 feet.
.SUNDAY...Southeast wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots late in the morning, then decreasing to
25 knots in the afternoon. Chance of rain showers in the
afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...South wind 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots with gusts to around
25 knots early in the morning. Rain showers. Waves 2 to 4 feet.
.MONDAY...West wind 15 to 20 knots. Sunny. Waves 1 to 3 feet.

$$

LSZ146-121015-
Port Wing to Sand Island WI-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT SUNDAY THROUGH
MONDAY MORNING...

.REST OF TONIGHT...Southeast wind 5 to 10 knots becoming south
with gusts to around 20 knots after midnight. Partly cloudy in
the late evening and early morning then becoming mostly cloudy.
Waves 1 foot or less.
.SUNDAY...Southeast wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots late in the afternoon. Chance of rain
showers in the afternoon. Waves 1 to 2 feet.
.SUNDAY NIGHT...South wind 10 to 15 knots becoming southwest
after midnight. Gusts up to 25 knots. Rain showers. Waves 1 to
3 feet.
.MONDAY...West wind 10 to 15 knots easing to 10 knots late in the
afternoon. Gusts up to 20 knots. Sunny. Waves 1 to 3 feet.

$$

LSZ147-121015-
Sand Island to Bayfield WI-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT SUNDAY THROUGH
MONDAY MORNING...

.REST OF TONIGHT...Southeast wind 10 to 15 knots. Gusts up to
20 knots after midnight. Mostly clear in the late evening and
early morning then becoming mostly cloudy. Waves 1 to 2 feet.
.SUNDAY...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots late in the afternoon. Chance of rain
showers in the afternoon. Waves 1 to 2 feet.
.SUNDAY NIGHT...South wind 10 to 15 knots with gusts to around
30 knots becoming southwest with gusts to around 20 knots early
in the morning. Rain showers. Waves 1 to 2 feet.
.MONDAY...West wind 10 to 15 knots easing to 10 knots late in the
afternoon. Gusts up to 20 knots. Sunny. Waves 1 to 3 feet.

$$

LSZ150-121015-
Outer Apostle Islands Beyond 5 NM from Mainland-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT SUNDAY THROUGH
MONDAY MORNING...

.REST OF TONIGHT...Southeast wind 10 to 15 knots with gusts to
around 20 knots. Mostly clear in the late evening and early
morning then becoming mostly cloudy. Waves 1 to 3 feet.
.SUNDAY...Southeast wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots late in the afternoon. Chance of rain
showers in the afternoon. Waves 1 to 3 feet building to 2 to
4 feet late in the afternoon.
.SUNDAY NIGHT...South wind 15 to 20 knots with gusts to around
30 knots becoming southwest with gusts to around 25 knots early
in the morning. Rain showers. Waves 3 to 5 feet.
.MONDAY...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late morning and afternoon. Rain
showers in the morning. Waves 1 to 3 feet.

$$

LSZ121-121015-
Chequamegon Bay-Bayfield to Oak Point WI-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT SUNDAY THROUGH
MONDAY MORNING...

.REST OF TONIGHT...South wind 5 to 10 knots. Gusts up to 20 knots
after midnight. Partly cloudy in the late evening and early
morning then becoming mostly cloudy. Waves 1 foot or less.
.SUNDAY...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon. Chance
of rain showers in the afternoon. Waves 1 to 2 feet.
.SUNDAY NIGHT...South wind 15 to 20 knots with gusts to around
30 knots becoming southwest 10 to 15 knots with gusts to around
25 knots early in the morning. Rain showers. Waves 1 to 2 feet.
.MONDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west 5 to 10 knots with gusts to around
20 knots in the late morning and afternoon. Sunny. Waves 1 foot
or less.

$$

LSZ148-121015-
Oak Point to Saxon Harbor WI-
924 PM CDT Sat Oct 11 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM CDT SUNDAY THROUGH
MONDAY MORNING...

.REST OF TONIGHT...South wind 10 to 15 knots. Gusts up to
25 knots. Mostly clear in the late evening and early morning then
becoming mostly cloudy. Waves 1 to 2 feet.
.SUNDAY...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots late in the afternoon. Chance of rain
showers in the afternoon. Waves 1 to 2 feet building to 1 to
3 feet late in the afternoon.
.SUNDAY NIGHT...South wind 15 to 20 knots with gusts to around
30 knots becoming southwest with gusts to around 25 knots early
in the morning. Rain showers. Waves 2 to 4 feet subsiding to 1 to
3 feet early in the morning.
.MONDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west 5 to 10 knots with gusts to around
20 knots in the late morning and afternoon. Rain showers in the
morning. Waves 1 to 2 feet.

$$

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

Britt