Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 300828
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
328 AM CDT Sat Aug 30 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.

LSZ140-141-301615-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
328 AM CDT Sat Aug 30 2025

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots late
in the afternoon. Sunny. Waves 1 to 2 feet building to 1 to
3 feet in the afternoon.
.TONIGHT...West wind 10 to 15 knots. Chance of sprinkles after
midnight. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late
evening and overnight.
.SUNDAY...Southwest wind 5 to 10 knots. Chance of sprinkles.
Waves 1 to 2 feet.
.SUNDAY NIGHT...Southwest wind 5 to 10 knots. Chance of sprinkles
and slight chance of thunderstorms in the evening. Waves 1 foot
or less.

$$

LSZ142-143-301615-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
328 AM CDT Sat Aug 30 2025

.TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.SUNDAY...Southwest wind 5 to 10 knots. Chance of sprinkles.
Waves 1 to 2 feet.
.SUNDAY NIGHT...Southwest wind 5 knots early in the evening
becoming variable 10 knots or less. Chance of sprinkles in the
evening. Waves 1 foot or less.

$$

LSZ144-145-301615-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
328 AM CDT Sat Aug 30 2025

.TODAY...Southwest wind 5 to 10 knots. Patchy fog early in the
morning. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.SUNDAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves 1 to
2 feet.
.SUNDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ146-301615-
Port Wing to Sand Island WI-
328 AM CDT Sat Aug 30 2025

.TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.SUNDAY...Southwest wind 10 to 15 knots. Sunny. Waves 1 to
2 feet.
.SUNDAY NIGHT...South wind 5 knots early in the evening becoming
variable 10 knots or less, then becoming southwest 5 knots early
in the morning. Mostly clear. Waves 1 foot or less.

$$

LSZ147-301615-
Sand Island to Bayfield WI-
328 AM CDT Sat Aug 30 2025

.TODAY...Southwest wind 5 to 10 knots. Areas of dense fog early
in the morning. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.SUNDAY...West wind 5 to 10 knots. Sunny. Waves 1 to 2 feet.
.SUNDAY NIGHT...South wind 5 knots becoming southwest after
midnight. Mostly clear. Waves 1 foot or less.

$$

LSZ150-301615-
Outer Apostle Islands Beyond 5 NM from Mainland-
328 AM CDT Sat Aug 30 2025

.TODAY...Southwest wind 5 to 10 knots. Patchy dense fog early in
the morning. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Mostly clear. Waves
1 to 2 feet.
.SUNDAY...Southwest wind 10 to 15 knots. Sunny. Waves 1 to
3 feet.
.SUNDAY NIGHT...South wind 5 knots becoming southwest early in
the morning. Mostly clear. Waves 1 foot or less.

$$

LSZ121-301615-
Chequamegon Bay-Bayfield to Oak Point WI-
328 AM CDT Sat Aug 30 2025

.TODAY...Southwest wind 5 knots becoming southeast late in the
afternoon. Areas of dense fog early in the morning. Waves 1 foot
or less.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.SUNDAY NIGHT...Southeast wind 5 knots becoming southwest early
in the morning. Mostly clear. Waves 1 foot or less.

$$

LSZ148-301615-
Oak Point to Saxon Harbor WI-
328 AM CDT Sat Aug 30 2025

.TODAY...Southwest wind 5 to 10 knots becoming southeast late in
the afternoon. Patchy fog early in the morning. Waves 1 foot or
less.
.TONIGHT...South wind 5 knots becoming southwest in the late
evening and overnight. Mostly clear. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots becoming west late in the
afternoon. Sunny. Waves 1 to 2 feet.
.SUNDAY NIGHT...Southeast wind 5 knots becoming southwest early
in the morning. Mostly clear. Waves 1 foot or less.

$$

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

Huyck