726
FZUS53 KDLH 240753
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
253 AM CDT Sun Aug 24 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.

LSZ140-141-241615-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
253 AM CDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Northwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots late in the afternoon. Scattered rain
showers. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
20 knots. Partly cloudy. Waves 1 to 2 feet.
.MONDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots in
the morning. Sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ142-143-241615-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
253 AM CDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Northwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots late in the afternoon. Scattered rain
showers in the morning, then scattered sprinkles in the
afternoon. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots in
the evening. Partly cloudy. Waves 1 foot or less.
.MONDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ144-145-241615-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
253 AM CDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots. Isolated rain showers early in the morning, then
scattered sprinkles in the late morning and afternoon. Waves 1 to
2 feet.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
late in the evening. Mostly clear. Waves 1 to 2 feet.
.MONDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ146-241615-
Port Wing to Sand Island WI-
253 AM CDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots in the afternoon. Scattered rain showers
early in the morning, then isolated rain showers in the late
morning and early afternoon. Scattered sprinkles late in the
afternoon. Waves 1 to 3 feet.
.TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Scattered sprinkles in the evening. Waves
1 to 2 feet.
.MONDAY...Northwest wind 10 to 15 knots easing to 5 knots in the
afternoon. Sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 5 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ147-241615-
Sand Island to Bayfield WI-
253 AM CDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots in
the morning. Scattered rain showers and isolated thunderstorms
early in the morning, then isolated rain showers in the late
morning and early afternoon. Scattered rain showers late in the
afternoon. Waves 2 to 4 feet.
.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
20 knots. Scattered sprinkles in the evening. Waves 1 to 3 feet.
.MONDAY...North wind 10 to 15 knots with gusts to around 20 knots
becoming northwest 5 to 10 knots in the late morning and
afternoon. Sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ150-241615-
Outer Apostle Islands Beyond 5 NM from Mainland-
253 AM CDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Northwest wind 15 to 20 knots with gusts to around
25 knots. Isolated thunderstorms early in the morning. Scattered
rain showers until late afternoon, then isolated rain showers
late in the afternoon. Waves 3 to 5 feet. Waves occasionally to
7 feet.
.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
20 knots. Scattered sprinkles in the evening. Waves 2 to 4 feet.
.MONDAY...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 to 10 knots late in the afternoon. Sunny.
Waves 1 to 3 feet subsiding to 1 to 2 feet in the afternoon.
.MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves
1 to 2 feet.

$$

LSZ121-241615-
Chequamegon Bay-Bayfield to Oak Point WI-
253 AM CDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots. Isolated thunderstorms early in the morning. Scattered
rain showers until late afternoon, then isolated rain showers
late in the afternoon. Waves 1 foot or less.
.TONIGHT...Northwest wind 5 to 10 knots. Scattered sprinkles in
the evening. Waves 1 foot or less.
.MONDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.MONDAY NIGHT...Northwest wind 5 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ148-241615-
Oak Point to Saxon Harbor WI-
253 AM CDT Sun Aug 24 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...Northwest wind 15 to 20 knots. Gusts up to 25 knots in
the morning. Isolated thunderstorms early in the morning.
Scattered rain showers through the day. Waves 2 to 4 feet.
.TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Scattered sprinkles in the evening. Waves
1 to 3 feet.
.MONDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in
the morning. Sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.

$$

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

Britt