250
FZUS53 KDLH 292031
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
331 PM CDT Fri Aug 29 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.

LSZ140-141-300415-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
331 PM CDT Fri Aug 29 2025

.TONIGHT...South wind 5 to 10 knots becoming southwest in the
late evening and overnight. Mostly clear. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots. Chance of sprinkles in
the afternoon. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 5 to 10 knots easing to 5 knots early
in the morning. Chance of sprinkles in the evening. Waves 1 to
2 feet.
.SUNDAY...West wind 5 knots becoming southwest in the late
morning and afternoon. Sunny. Waves 1 foot or less.

$$

LSZ142-143-300415-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
331 PM CDT Fri Aug 29 2025

.TONIGHT...Northeast wind 5 to 10 knots becoming northwest after
midnight, then becoming west late in the night. Patchy fog late
in the night. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots. Patchy fog in the morning.
Chance of sprinkles in the afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...Southwest wind 5 knots becoming west after
midnight. Chance of sprinkles in the evening. Waves 1 foot or
less.
.SUNDAY...Southwest wind 5 knots. Sunny. Waves 1 foot or less.

$$

LSZ144-145-300415-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
331 PM CDT Fri Aug 29 2025

.TONIGHT...Northeast wind 5 to 10 knots becoming west late in the
night. Patchy fog late in the night. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots becoming south late in the
afternoon. Patchy fog in the morning. Waves 1 foot or less.
.SATURDAY NIGHT...South wind 5 knots becoming southwest in the
late evening and overnight. Mostly clear. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 knots. Sunny. Waves 1 foot or less.

$$

LSZ146-300415-
Port Wing to Sand Island WI-
331 PM CDT Fri Aug 29 2025

.TONIGHT...East wind 5 to 10 knots becoming southwest late in the
night. Patchy fog late in the night. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots. Patchy fog in the morning.
Waves 1 foot or less.
.SATURDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves
1 foot or less.
.SUNDAY...Southwest wind 5 knots. Sunny. Waves 1 foot or less.

$$

LSZ147-300415-
Sand Island to Bayfield WI-
331 PM CDT Fri Aug 29 2025

.TONIGHT...Southeast wind 5 knots becoming southwest after
midnight. Patchy fog late in the night. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots. Patchy fog in the morning.
Waves 1 foot or less.
.SATURDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves
1 foot or less.
.SUNDAY...Southwest wind 5 knots. Sunny. Waves 1 foot or less.

$$

LSZ150-300415-
Outer Apostle Islands Beyond 5 NM from Mainland-
331 PM CDT Fri Aug 29 2025

.TONIGHT...East wind 5 to 10 knots becoming southwest after
midnight. Patchy fog late in the night. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots. Patchy fog in the morning.
Waves 1 foot or less.
.SATURDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves
1 foot or less.
.SUNDAY...Southwest wind 5 knots. Sunny. Waves 1 foot or less.

$$

LSZ121-300415-
Chequamegon Bay-Bayfield to Oak Point WI-
331 PM CDT Fri Aug 29 2025

.TONIGHT...East wind 5 to 10 knots becoming southwest after
midnight. Patchy fog late in the night. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots becoming east late in the
afternoon. Patchy fog in the morning. Waves 1 foot or less.
.SATURDAY NIGHT...Southeast wind 5 knots becoming southwest in
the late evening and overnight. Mostly clear. Waves 1 foot or
less.
.SUNDAY...Southwest wind 5 knots in the morning becoming variable
10 knots or less, then becoming east 5 knots late in the
afternoon. Sunny. Waves 1 foot or less.

$$

LSZ148-300415-
Oak Point to Saxon Harbor WI-
331 PM CDT Fri Aug 29 2025

.TONIGHT...East wind 5 to 10 knots becoming southeast late in the
evening, then becoming southwest after midnight. Patchy fog late
in the night. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots becoming east late in the
afternoon. Patchy fog in the morning. Waves 1 foot or less.
.SATURDAY NIGHT...Southeast wind 5 knots becoming southwest in
the late evening and overnight. Mostly clear. Waves 1 foot or
less.
.SUNDAY...Southwest wind 5 knots becoming northeast late in the
afternoon. Sunny. Waves 1 foot or less.

$$

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

KML