Nearshore Marine Forecast
Issued by NWS Duluth, MN

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490
FZUS53 KDLH 022006
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
306 PM CDT Sat Aug 2 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.

LSZ140-141-030415-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
306 PM CDT Sat Aug 2 2025

.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots early
in the evening. Areas of smoke through the night. Waves 1 to
3 feet subsiding to 1 to 2 feet in the late evening and
overnight.
.SUNDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Areas of smoke. Waves 1 to 2 feet.
.SUNDAY NIGHT...Southwest wind 5 to 10 knots becoming northwest
after midnight. Areas of smoke. Waves 1 to 2 feet.
.MONDAY...North wind 5 knots becoming southeast in the late
morning and afternoon. Partly sunny. Waves 1 foot or less.

$$

LSZ142-143-030415-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
306 PM CDT Sat Aug 2 2025

.TONIGHT...Southwest wind 5 to 10 knots. Areas of smoke early in
the evening. Waves 1 to 2 feet.
.SUNDAY...Southwest wind 5 to 10 knots becoming southeast late in
the afternoon. Areas of smoke. Waves 1 foot or less.
.SUNDAY NIGHT...East wind 5 knots becoming northeast in the late
evening and overnight. Areas of smoke through the night. Waves
1 foot or less.
.MONDAY...Northeast wind 5 knots becoming east in the late
morning and afternoon. Slight chance of showers through the day.
Waves 1 foot or less.

$$

LSZ144-145-030415-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
306 PM CDT Sat Aug 2 2025

.TONIGHT...Southwest wind 5 to 10 knots. Areas of smoke early in
the evening. Areas of smoke late in the night. Waves 1 foot or
less.
.SUNDAY...Southwest wind 5 knots becoming east in the afternoon.
Areas of smoke. Waves 1 foot or less.
.SUNDAY NIGHT...East wind 5 to 10 knots. Areas of smoke in the
evening. Waves 1 foot or less.
.MONDAY...East wind 5 to 10 knots. Slight chance of showers
through the day. Waves 1 foot or less.

$$

LSZ146-030415-
Port Wing to Sand Island WI-
306 PM CDT Sat Aug 2 2025

.TONIGHT...Southwest wind 5 to 10 knots. Areas of smoke in the
evening. Areas of smoke late in the night. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots becoming west late in the
morning, then becoming north early in the afternoon becoming east
late in the afternoon. Areas of smoke. Waves 1 foot or less.
.SUNDAY NIGHT...Southeast wind 5 knots. Areas of smoke through
the night. Waves 1 foot or less.
.MONDAY...East wind 5 to 10 knots. Slight chance of showers
through the day. Waves 1 foot or less.

$$

LSZ147-030415-
Sand Island to Bayfield WI-
306 PM CDT Sat Aug 2 2025

.TONIGHT...Southwest wind 5 to 10 knots. Areas of smoke in the
evening. Areas of smoke late in the night. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots becoming east in the
afternoon. Areas of smoke. Waves 1 foot or less.
.SUNDAY NIGHT...Southeast wind 5 knots becoming south after
midnight. Areas of smoke through the night. Waves 1 foot or less.
.MONDAY...Southeast wind 5 knots becoming east in the afternoon.
Partly sunny. Waves 1 foot or less.

$$

LSZ150-030415-
Outer Apostle Islands Beyond 5 NM from Mainland-
306 PM CDT Sat Aug 2 2025

.TONIGHT...Southwest wind 5 to 10 knots. Areas of smoke in the
evening. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots becoming east late in the
afternoon. Areas of smoke through the day. Waves 1 foot or less.
.SUNDAY NIGHT...Southeast wind 5 knots becoming south after
midnight. Areas of smoke through the night. Waves 1 foot or less.
.MONDAY...South wind 5 knots becoming east in the afternoon.
Partly sunny. Waves 1 foot or less.

$$

LSZ121-030415-
Chequamegon Bay-Bayfield to Oak Point WI-
306 PM CDT Sat Aug 2 2025

.TONIGHT...Southwest wind 5 to 10 knots. Areas of smoke in the
evening. Waves 1 foot or less.
.SUNDAY...South wind 5 to 10 knots becoming east late in the
afternoon. Areas of smoke through the day. Waves 1 foot or less.
.SUNDAY NIGHT...East wind 5 knots becoming south after midnight.
Areas of smoke through the night. Waves 1 foot or less.
.MONDAY...South wind 5 knots becoming east in the afternoon.
Slight chance of showers in the afternoon. Waves 1 foot or less.

$$

LSZ148-030415-
Oak Point to Saxon Harbor WI-
306 PM CDT Sat Aug 2 2025

.TONIGHT...South wind 5 knots becoming southwest in the late
evening and overnight. Areas of smoke in the evening. Waves
1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots becoming east in the
afternoon. Areas of smoke through the day. Waves 1 foot or less.
.SUNDAY NIGHT...East wind 5 knots becoming south after midnight.
Areas of smoke through the night. Waves 1 foot or less.
.MONDAY...South wind 5 knots becoming east in the afternoon.
Partly sunny. Waves 1 foot or less.

$$

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

Huyck