443
FZUS53 KDLH 221508
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1008 AM CDT Fri Aug 22 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.

LSZ140-141-222215-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
1008 AM CDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY EVENING...

.REST OF TODAY...Southwest wind 10 to 15 knots. Slight chance of
showers through the day. Slight chance of thunderstorms in the
afternoon. Waves 1 to 2 feet.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots after
midnight. Partly cloudy. Waves 1 to 2 feet.
.SATURDAY...West wind 15 to 20 knots with gusts to around
25 knots. Slight chance of rain showers in the afternoon. Waves
1 to 3 feet.
.SATURDAY NIGHT...Northwest wind 15 to 20 knots. Gusts up to
25 knots decreasing to 20 knots after midnight, then increasing
to 25 knots early in the morning. Partly cloudy in the evening
then becoming mostly cloudy. Waves 1 to 3 feet.

$$

LSZ142-143-222215-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
1008 AM CDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY EVENING...

.REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of
showers and thunderstorms in the late morning and early
afternoon. Waves 1 foot or less.
.TONIGHT...West wind 5 to 10 knots with gusts to around 20 knots
rising to 10 to 15 knots with gusts to around 20 knots early in
the morning. Partly cloudy. Waves 1 foot or less.
.SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots late in the afternoon. Mostly sunny. Waves
1 to 2 feet.
.SATURDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to
25 knots decreasing to 20 knots in the late evening and
overnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 to 2 feet.

$$

LSZ144-145-222215-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
1008 AM CDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY EVENING...

.REST OF TODAY...Southwest wind 5 to 10 knots. Chance of showers
and slight chance of thunderstorms in the late morning and early
afternoon. Waves 1 foot or less.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots after
midnight. Mostly clear. Waves 1 to 2 feet.
.SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Mostly sunny. Waves 1 to
3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. Partly
cloudy in the evening then becoming mostly cloudy. Waves 1 to
3 feet.

$$

LSZ146-222215-
Port Wing to Sand Island WI-
1008 AM CDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY EVENING...

.REST OF TODAY...Southwest wind 5 to 10 knots. Chance of showers
in the late morning and early afternoon. Slight chance of
thunderstorms through the day. Slight chance of showers late.
Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 knots becoming west with gusts to
around 20 knots in the late evening and early morning, then
becoming west 10 to 15 knots with gusts to around 20 knots early
in the morning. Partly cloudy. Waves 1 to 3 feet.
.SATURDAY...West wind 10 to 15 knots with gusts to around
20 knots. Mostly sunny. Waves 1 to 3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots early in the morning. Partly cloudy in the
evening then becoming mostly cloudy. Waves 1 to 3 feet.

$$

LSZ147-222215-
Sand Island to Bayfield WI-
1008 AM CDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY EVENING...

.REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of
showers late in the morning. Slight chance of thunderstorms
through the day. Chance of showers in the afternoon. Waves 1 to
2 feet.
.TONIGHT...Southwest wind 10 knots becoming west with gusts to
around 20 knots in the late evening and early morning, then
becoming west 10 to 15 knots with gusts to around 20 knots early
in the morning. Partly cloudy. Waves 1 to 2 feet building to 1 to
3 feet early in the morning.
.SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Sunny. Waves 1 to
3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots early in the morning. Partly cloudy in the
evening then becoming mostly cloudy. Waves 1 to 2 feet.

$$

LSZ150-222215-
Outer Apostle Islands Beyond 5 NM from Mainland-
1008 AM CDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY EVENING...

.REST OF TODAY...Southwest wind 10 to 15 knots. Slight chance of
showers late in the morning. Slight chance of thunderstorms
through the day. Chance of showers in the afternoon. Waves 1 to
2 feet.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west 15 to 20 knots with gusts to around
25 knots early in the morning. Partly cloudy. Waves 1 to 3 feet
building to 2 to 4 feet early in the morning.
.SATURDAY...West wind 15 to 20 knots with gusts to around
25 knots. Sunny. Waves 2 to 4 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots with gusts to around
25 knots. Slight chance of rain showers after midnight. Waves
1 to 3 feet.

$$

LSZ121-222215-
Chequamegon Bay-Bayfield to Oak Point WI-
1008 AM CDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY EVENING...

.REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of
showers and thunderstorms late in the morning, then chance of
showers and thunderstorms in the afternoon. Waves 1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots becoming west with gusts
to around 20 knots early in the morning. Partly cloudy. Waves
1 foot or less.
.SATURDAY...West wind 10 to 15 knots with gusts to around
20 knots. Sunny. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 10 to 15 knots easing to 5 to
10 knots after midnight. Gusts up to 20 knots. Partly cloudy.
Waves 1 foot or less.

$$

LSZ148-222215-
Oak Point to Saxon Harbor WI-
1008 AM CDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH SATURDAY EVENING...

.REST OF TODAY...Southwest wind 5 to 10 knots. Slight chance of
showers and thunderstorms late in the morning, then chance of
showers and thunderstorms in the afternoon. Waves 1 foot or less.
.TONIGHT...Southwest wind 10 to 15 knots becoming west with gusts
to around 20 knots early in the morning. Partly cloudy. Waves
1 to 2 feet.
.SATURDAY...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Sunny. Waves 1 to
3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Slight chance of rain showers after midnight. Waves
1 to 2 feet.

$$

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

Huyck