990
FZUS53 KDLH 160221
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
921 PM CDT Wed Oct 15 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.

LSZ140-161015-
Grand Portage to Grand Marais MN-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...Northwest wind 5 knots becoming south after
midnight, then becoming southeast toward daybreak. Mostly clear.
Waves 1 foot or less.
.THURSDAY...Southeast wind 5 to 10 knots. Gusts up to 20 knots in
the afternoon. Rain showers likely in the afternoon. Waves 1 to
2 feet.
.THURSDAY NIGHT...South wind 10 to 15 knots with gusts to around
20 knots. Rain showers. Waves 1 to 3 feet.
.FRIDAY...South wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late morning and afternoon. Rain
showers likely in the morning, then chance of rain showers in the
afternoon. Waves 3 to 5 feet. Waves occasionally to 7 feet. A
small craft advisory may be needed.

$$

LSZ141-161015-
Grand Marais to Taconite Harbor MN-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...North wind 5 knots late in the evening
becoming variable 10 knots or less, then becoming east 5 knots
toward daybreak. Mostly clear. Waves 1 foot or less.
.THURSDAY...East wind 5 to 10 knots becoming southeast in the
afternoon. Rain showers likely in the afternoon. Waves 1 foot or
less.
.THURSDAY NIGHT...Southeast wind 5 to 10 knots. Rain showers.
Waves 1 to 2 feet.
.FRIDAY...South wind 10 to 15 knots with gusts to around 20 knots
becoming south 10 to 15 knots with gusts to around 25 knots in
the afternoon. Chance of rain showers. Waves 1 to 2 feet building
to 1 to 3 feet in the late morning and afternoon.

$$

LSZ142-161015-
Taconite Harbor to Silver Bay Harbor MN-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...Northeast wind 5 knots late in the evening
becoming variable 10 knots or less, then becoming northeast
5 knots toward daybreak. Mostly clear in the late evening and
early morning then becoming mostly cloudy. Waves 1 foot or less.
.THURSDAY...Southeast wind 5 to 10 knots. Chance of rain showers
in the morning, then rain showers likely in the afternoon. Waves
1 foot or less.
.THURSDAY NIGHT...Southeast wind 5 knots. Rain showers likely.
Waves 1 foot or less.
.FRIDAY...South wind 5 to 10 knots with gusts to around 25 knots
becoming southwest with gusts to around 25 knots late in the
afternoon. Chance of rain showers. Waves 1 to 3 feet.

$$

LSZ143-161015-
Silver Bay Harbor to Two Harbors MN-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...Northeast wind 5 knots. Partly cloudy in the
late evening and early morning then becoming mostly cloudy. Waves
1 foot or less.
.THURSDAY...East wind 5 to 10 knots. Rain showers likely through
the day. Waves 1 foot or less.
.THURSDAY NIGHT...East wind 5 to 10 knots becoming southeast
early in the morning. Rain showers likely. Waves 1 foot or less.
.FRIDAY...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon. Chance
of rain showers. Waves 1 to 3 feet building to 2 to 4 feet in the
afternoon.

$$

LSZ144-161015-
Two Harbors to Duluth MN-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...East wind 5 knots. Mostly cloudy. Waves 1 foot
or less.
.THURSDAY...East wind 5 to 10 knots. Rain showers likely in the
morning, then chance of rain showers in the afternoon. Waves 1 to
2 feet.
.THURSDAY NIGHT...Southeast wind 10 to 15 knots with gusts to
around 20 knots becoming south with gusts to around 20 knots
early in the morning. Chance of rain showers. Waves 1 to 2 feet.
.FRIDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon. Chance
of rain showers. Waves 1 to 3 feet building to 2 to 4 feet in the
late morning and afternoon.

$$

LSZ145-161015-
Duluth MN to Port Wing WI-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...East wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.
.THURSDAY...Southeast wind 5 to 10 knots. Rain showers likely in
the morning, then chance of rain showers in the afternoon. Waves
1 foot or less.
.THURSDAY NIGHT...Southeast wind 10 to 15 knots with gusts to
around 20 knots becoming south with gusts to around 20 knots
early in the morning. Chance of rain showers. Waves 1 to 2 feet.
.FRIDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon. Chance
of rain showers. Waves 1 to 3 feet.

$$

LSZ146-161015-
Port Wing to Sand Island WI-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...East wind 5 knots. Partly cloudy in the late
evening and early morning then becoming mostly cloudy. Waves
1 foot or less.
.THURSDAY...Southeast wind 5 to 10 knots. Rain showers likely
through the day. Waves 1 foot or less.
.THURSDAY NIGHT...Southeast wind 5 to 10 knots becoming south
early in the morning. Rain showers likely. Waves 1 foot or less.
.FRIDAY...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Chance of rain showers.
Waves 1 to 3 feet.

$$

LSZ147-161015-
Sand Island to Bayfield WI-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...Southeast wind 5 to 10 knots. Mostly clear in
the late evening and early morning then becoming mostly cloudy.
Waves 1 foot or less.
.THURSDAY...Southeast wind 5 knots. Chance of rain showers in the
morning, then rain showers likely in the afternoon. Waves 1 foot
or less.
.THURSDAY NIGHT...South wind 5 to 10 knots. Gusts up to 20 knots
early in the morning. Rain showers likely. Waves 1 foot or less.
.FRIDAY...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon. Chance
of rain showers. Waves 1 to 2 feet.

$$

LSZ150-161015-
Outer Apostle Islands Beyond 5 NM from Mainland-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...East wind 5 to 10 knots becoming southeast
toward daybreak. Mostly clear in the late evening and early
morning then becoming mostly cloudy. Waves 1 foot or less.
.THURSDAY...Southeast wind 5 to 10 knots. Chance of rain showers
through the day. Waves 1 foot or less.
.THURSDAY NIGHT...South wind 10 to 15 knots. Gusts up to 20 knots
in the late evening and overnight. Rain showers likely. Waves
1 to 3 feet.
.FRIDAY...South wind 10 to 15 knots with gusts to around
25 knots. Chance of rain showers. Waves 1 to 3 feet.

$$

LSZ121-161015-
Chequamegon Bay-Bayfield to Oak Point WI-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...East wind 5 knots becoming southeast after
midnight. Partly cloudy in the late evening and early morning
then becoming mostly cloudy. Waves 1 foot or less.
.THURSDAY...Southeast wind 5 to 10 knots. Chance of rain showers
in the morning, then rain showers likely in the afternoon. Waves
1 foot or less.
.THURSDAY NIGHT...South wind 10 to 15 knots. Gusts up to 20 knots
early in the morning. Chance of rain showers. Waves 1 foot or
less.
.FRIDAY...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon. Chance
of rain showers. Waves 1 to 2 feet.

$$

LSZ148-161015-
Oak Point to Saxon Harbor WI-
921 PM CDT Wed Oct 15 2025

.REST OF TONIGHT...Southeast wind 5 knots. Partly cloudy in the
late evening and early morning then becoming mostly cloudy. Waves
1 foot or less.
.THURSDAY...Southeast wind 5 to 10 knots. Gusts up to 20 knots
late in the afternoon. Chance of rain showers in the morning,
then rain showers likely in the afternoon. Waves 1 foot or less.
.THURSDAY NIGHT...South wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots late in the evening, then decreasing to
20 knots after midnight increasing to 25 knots early in the
morning. Rain showers likely. Waves 1 to 2 feet.
.FRIDAY...South wind 10 to 15 knots with gusts to around
25 knots. Chance of rain showers through the day. Waves 1 to
2 feet.

$$

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

Britt