946
FZUS53 KDLH 290809
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
309 AM 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.

LSZ140-141-291615-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
309 AM CDT Fri Aug 29 2025

.TODAY...South wind 5 to 10 knots. Mostly sunny. Waves 1 foot or
less.
.TONIGHT...South wind 5 to 10 knots becoming west 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 foot or less.
.SATURDAY NIGHT...West wind 5 to 10 knots. Partly cloudy. Waves
1 foot or less.

$$

LSZ142-143-291615-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
309 AM CDT Fri Aug 29 2025

.TODAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 foot or
less.
.TONIGHT...East wind 5 to 10 knots becoming northwest early in
the morning. Mostly clear. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots. Chance of sprinkles in the
afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...Southwest wind 5 knots becoming west in the
late evening and overnight. Partly cloudy. Waves 1 foot or less.

$$

LSZ144-145-291615-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
309 AM CDT Fri Aug 29 2025

.TODAY...East wind 5 knots becoming northeast in the afternoon.
Mostly sunny. Waves 1 foot or less.
.TONIGHT...Northeast wind 5 to 10 knots becoming west early in
the morning. Partly cloudy. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots becoming south late in the
afternoon. Mostly sunny. 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.

$$

LSZ146-291615-
Port Wing to Sand Island WI-
309 AM CDT Fri Aug 29 2025

.TODAY...Southeast wind 5 knots becoming northeast in the
afternoon. Mostly sunny. Waves 1 foot or less.
.TONIGHT...East wind 5 to 10 knots becoming southwest early in
the morning. Mostly clear. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots. Mostly sunny. Waves 1 foot or
less.
.SATURDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ147-291615-
Sand Island to Bayfield WI-
309 AM CDT Fri Aug 29 2025

.TODAY...South wind 5 knots becoming east in the afternoon.
Mostly sunny. Waves 1 foot or less.
.TONIGHT...East wind 5 knots becoming northwest after midnight,
then becoming west early in the morning. Mostly clear. Waves
1 foot or less.
.SATURDAY...Southwest wind 5 knots. Sunny. Waves 1 foot or less.
.SATURDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ150-291615-
Outer Apostle Islands Beyond 5 NM from Mainland-
309 AM CDT Fri Aug 29 2025

.TODAY...South wind 5 knots becoming east in the afternoon.
Mostly sunny. Waves 1 foot or less.
.TONIGHT...East wind 5 to 10 knots becoming west after midnight.
Mostly clear. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.SATURDAY NIGHT...Southwest wind 5 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ121-291615-
Chequamegon Bay-Bayfield to Oak Point WI-
309 AM CDT Fri Aug 29 2025

.TODAY...South wind 5 knots becoming east in the afternoon.
Mostly sunny. Waves 1 foot or less.
.TONIGHT...East wind 5 knots becoming southwest after midnight.
Mostly clear. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots becoming east late in the
afternoon. Sunny. 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.

$$

LSZ148-291615-
Oak Point to Saxon Harbor WI-
309 AM CDT Fri Aug 29 2025

.TODAY...South wind 5 knots becoming east in the afternoon.
Mostly sunny. Waves 1 foot or less.
.TONIGHT...East wind 5 to 10 knots becoming southeast late in the
evening, then becoming southwest after midnight. Mostly clear.
Waves 1 foot or less.
.SATURDAY...Southwest wind 5 knots becoming east late in the
afternoon. Sunny. 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.

$$

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

Britt