621
FZUS53 KDLH 301456
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
956 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.

LSZ140-141-302215-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
956 AM CDT Sat Aug 30 2025

.REST OF TODAY...Southwest wind 10 to 15 knots. Mostly sunny.
Waves 1 to 3 feet.
.TONIGHT...Southwest wind 10 to 15 knots easing to 5 knots early
in the morning. Slight chance of sprinkles after midnight. Waves
1 to 3 feet.
.SUNDAY...Southwest wind 5 to 10 knots. Chance of sprinkles.
Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 to 10 knots. Chance of sprinkles
and slight chance of thunderstorms in the evening. Waves 1 foot
or less.

$$

LSZ142-143-302215-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
956 AM CDT Sat Aug 30 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots. Chance of sprinkles.
Waves 1 foot or less.
.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.

$$

LSZ144-145-302215-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
956 AM CDT Sat Aug 30 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. 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. Mostly sunny. Waves
1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ146-302215-
Port Wing to Sand Island WI-
956 AM CDT Sat Aug 30 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. 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 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.

$$

LSZ147-302215-
Sand Island to Bayfield WI-
956 AM CDT Sat Aug 30 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. 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 to 2 feet.
.SUNDAY NIGHT...South wind 5 knots becoming southwest after
midnight. Mostly clear. Waves 1 foot or less.

$$

LSZ150-302215-
Outer Apostle Islands Beyond 5 NM from Mainland-
956 AM CDT Sat Aug 30 2025

.REST OF 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. Sunny. Waves 1 to 2 feet.
.SUNDAY NIGHT...South wind 5 knots becoming southwest early in
the morning. Mostly clear. Waves 1 foot or less.

$$

LSZ121-302215-
Chequamegon Bay-Bayfield to Oak Point WI-
956 AM CDT Sat Aug 30 2025

.REST OF TODAY...Southwest wind 5 knots becoming south late.
Sunny. Waves 1 foot or less.
.TONIGHT...Southwest wind 5 knots. Patchy fog after midnight.
Waves 1 foot or less.
.SUNDAY...Southwest wind 5 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.

$$

LSZ148-302215-
Oak Point to Saxon Harbor WI-
956 AM CDT Sat Aug 30 2025

.REST OF TODAY...Southwest wind 5 to 10 knots becoming southeast
late. Sunny. 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. 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.

$$

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

Wolfe