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FZUS53 KDLH 082042
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
342 PM CDT Wed Oct 8 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.

LSZ140-090415-
Grand Portage to Grand Marais MN-
342 PM CDT Wed Oct 8 2025

.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.THURSDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon. Sunny.
Waves 1 to 3 feet building to 3 to 5 feet in the late morning and
afternoon. A small craft advisory may be needed.
.THURSDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to
20 knots increasing to 25 knots in the late evening and
overnight. Chance of rain showers through the night. Waves 2 to
4 feet. A small craft advisory may be needed.
.FRIDAY...West wind 15 to 20 knots becoming northwest 10 to
15 knots in the afternoon. Chance of rain showers. Waves 1 to
3 feet subsiding to 1 to 2 feet in the late morning and
afternoon.

$$

LSZ141-090415-
Grand Marais to Taconite Harbor MN-
342 PM CDT Wed Oct 8 2025

.TONIGHT...South wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.THURSDAY...Southwest wind 10 to 15 knots becoming southeast 5 to
10 knots late in the afternoon. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southeast wind 10 to 15 knots becoming
southwest with gusts to around 20 knots in the late evening and
overnight. Chance of rain showers through the night. Waves 1 to
2 feet.
.FRIDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming northwest with gusts to around 20 knots in the
late morning and afternoon. Chance of rain showers. Waves 1 to
2 feet.

$$

LSZ142-090415-
Taconite Harbor to Silver Bay Harbor MN-
342 PM CDT Wed Oct 8 2025

.TONIGHT...Southeast wind 5 knots becoming southwest after
midnight. Mostly clear. Waves 1 foot or less.
.THURSDAY...Southwest wind 5 to 10 knots becoming southeast late
in the afternoon. Sunny. Waves 1 foot or less.
.THURSDAY NIGHT...South wind 5 knots becoming southwest in the
late evening and overnight. Chance of rain showers through the
night. Waves 1 foot or less.
.FRIDAY...West wind 5 to 10 knots becoming northwest with gusts
to around 20 knots in the late morning and afternoon. Chance of
rain showers. Waves 1 foot or less.

$$

LSZ143-090415-
Silver Bay Harbor to Two Harbors MN-
342 PM CDT Wed Oct 8 2025

.TONIGHT...Southeast wind 5 knots becoming southwest after
midnight. Mostly clear. Waves 1 foot or less.
.THURSDAY...South wind 5 to 10 knots becoming southeast late in
the afternoon. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...South wind 10 to 15 knots becoming southwest
5 to 10 knots early in the morning. Chance of rain showers
through the night. Waves 1 to 2 feet.
.FRIDAY...West wind 5 to 10 knots becoming northwest in the late
morning and afternoon. Slight chance of rain showers. Waves
1 foot or less.

$$

LSZ144-090415-
Two Harbors to Duluth MN-
342 PM CDT Wed Oct 8 2025

.TONIGHT...East wind 5 knots becoming south after midnight.
Mostly clear. Waves 1 foot or less.
.THURSDAY...South wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots until early morning. Chance of rain showers in the
evening. Slight chance of rain showers after midnight. Waves 1 to
2 feet.
.FRIDAY...West wind 10 to 15 knots becoming northwest with gusts
to around 20 knots in the late morning and afternoon. Slight
chance of rain showers. Waves 1 foot or less.

$$

LSZ145-090415-
Duluth MN to Port Wing WI-
342 PM CDT Wed Oct 8 2025

.TONIGHT...East wind 5 to 10 knots becoming south late in the
night. Mostly clear. Waves 1 foot or less.
.THURSDAY...South wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots until early morning. Chance of rain showers in the
evening. Slight chance of rain showers after midnight. Waves 1 to
2 feet.
.FRIDAY...West wind 10 to 15 knots becoming northwest with gusts
to around 20 knots in the late morning and afternoon. Slight
chance of rain showers. Waves 1 foot or less.

$$

LSZ146-090415-
Port Wing to Sand Island WI-
342 PM CDT Wed Oct 8 2025

.TONIGHT...Southeast wind 5 knots becoming south after midnight.
Mostly clear. Waves 1 foot or less.
.THURSDAY...South wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.THURSDAY NIGHT...South wind 10 to 15 knots becoming southwest
early in the morning. Gusts up to 20 knots in the late evening
and early morning. Chance of rain showers through the night.
Waves 1 to 2 feet.
.FRIDAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming northwest 5 to 10 knots with gusts to around 20 knots in
the afternoon. Slight chance of rain showers. Waves 1 foot or
less.

$$

LSZ147-090415-
Sand Island to Bayfield WI-
342 PM CDT Wed Oct 8 2025

.TONIGHT...Southeast wind 5 knots becoming south after midnight.
Clear. Waves 1 foot or less.
.THURSDAY...South wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.THURSDAY NIGHT...South wind 10 to 15 knots. Gusts up to 20 knots
in the late evening and early morning. Chance of rain showers
through the night. Waves 1 foot or less.
.FRIDAY...Southwest wind 10 to 15 knots becoming northwest with
gusts to around 20 knots in the late morning and afternoon.
Chance of rain showers. Waves 1 foot or less.

$$

LSZ150-090415-
Outer Apostle Islands Beyond 5 NM from Mainland-
342 PM CDT Wed Oct 8 2025

.TONIGHT...Southeast wind 5 to 10 knots becoming south after
midnight. Mostly clear. Waves 1 to 2 feet.
.THURSDAY...South wind 10 to 15 knots. Gusts up to 20 knots in
the morning then 20 knots late in the afternoon. Sunny. Waves
1 to 2 feet.
.THURSDAY NIGHT...South wind 10 to 15 knots with gusts to around
20 knots. Chance of rain showers through the night. Waves 1 to
2 feet.
.FRIDAY...Southwest wind 10 to 15 knots becoming northwest in the
late morning and afternoon. Gusts up to 20 knots. Chance of rain
showers. Waves 1 to 2 feet.

$$

LSZ121-090415-
Chequamegon Bay-Bayfield to Oak Point WI-
342 PM CDT Wed Oct 8 2025

.TONIGHT...East wind 5 knots becoming south after midnight.
Clear. Waves 1 foot or less.
.THURSDAY...South wind 5 to 10 knots. Gusts up to 20 knots late
in the afternoon. Sunny. Waves 1 foot or less.
.THURSDAY NIGHT...South wind 10 to 15 knots with gusts to around
20 knots. Chance of rain showers through the night. Waves 1 foot
or less.
.FRIDAY...Southwest wind 5 to 10 knots becoming northwest in the
afternoon. Slight chance of rain showers in the morning, then
chance of rain showers in the afternoon. Waves 1 foot or less.

$$

LSZ148-090415-
Oak Point to Saxon Harbor WI-
342 PM CDT Wed Oct 8 2025

.TONIGHT...East wind 5 knots becoming south after midnight.
Clear. Waves 1 foot or less.
.THURSDAY...South wind 10 to 15 knots. Gusts up to 20 knots in
the late morning and afternoon. Sunny. Waves 1 foot or less.
.THURSDAY NIGHT...South wind 10 to 15 knots with gusts to around
20 knots. Chance of rain showers through the night. Waves 1 to
2 feet.
.FRIDAY...Southwest wind 10 to 15 knots becoming northwest with
gusts to around 20 knots late in the afternoon. Chance of rain
showers. Waves 1 foot or less.

$$

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

BJH