275
FZUS53 KDLH 132102
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
402 PM CDT Mon Oct 13 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.

LSZ140-140415-
Grand Portage to Grand Marais MN-
402 PM CDT Mon Oct 13 2025

.TONIGHT...West wind 10 to 15 knots becoming northwest 5 to
10 knots late in the night. Gusts up to 20 knots. Mostly clear.
Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening
and overnight.
.TUESDAY...Northwest wind 5 to 10 knots with gusts to around
20 knots becoming west in the afternoon. Mostly sunny. Waves
1 foot or less.
.TUESDAY NIGHT...West wind 5 to 10 knots becoming north early in
the morning. Cloudy. Waves 1 foot or less.
.WEDNESDAY...Northeast wind 5 knots becoming south in the late
morning and early afternoon, then becoming south 5 knots late in
the afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ141-140415-
Grand Marais to Taconite Harbor MN-
402 PM CDT Mon Oct 13 2025

.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots.
Mostly clear. Waves 1 to 2 feet.
.TUESDAY...Northwest wind 5 to 10 knots with gusts to around
20 knots becoming southwest in the afternoon. Mostly sunny. Waves
1 foot or less.
.TUESDAY NIGHT...West wind 5 knots becoming northeast early in
the morning. Cloudy. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots becoming southeast in the late
morning and afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ142-140415-
Taconite Harbor to Silver Bay Harbor MN-
402 PM CDT Mon Oct 13 2025

.TONIGHT...West wind 5 to 10 knots becoming northwest after
midnight. Gusts up to 20 knots. Mostly clear. Waves 1 foot or
less.
.TUESDAY...North wind 5 to 10 knots becoming south in the
afternoon. Mostly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...Southwest wind 5 knots becoming northeast after
midnight. Slight chance of rain showers. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming east 5 knots in the
afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ143-140415-
Silver Bay Harbor to Two Harbors MN-
402 PM CDT Mon Oct 13 2025

.TONIGHT...West wind 5 to 10 knots becoming northwest after
midnight. Mostly clear. Waves 1 foot or less.
.TUESDAY...North wind 5 knots becoming southeast in the
afternoon. Mostly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...South wind 5 knots becoming east in the late
evening and overnight. Slight chance of rain showers through the
night. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots. Partly sunny. Waves 1 foot or
less.

$$

LSZ144-140415-
Two Harbors to Duluth MN-
402 PM CDT Mon Oct 13 2025

.TONIGHT...Northwest wind 5 to 10 knots becoming north late in
the night. Mostly clear. Waves 1 foot or less.
.TUESDAY...North wind 5 to 10 knots becoming east in the
afternoon. Partly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...East wind 5 knots. Slight chance of rain showers
through the night. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots. Partly sunny. Waves 1 foot or
less.

$$

LSZ145-140415-
Duluth MN to Port Wing WI-
402 PM CDT Mon Oct 13 2025

.TONIGHT...Northwest wind 10 to 15 knots becoming north 5 to
10 knots after midnight. Mostly clear. Waves 1 to 2 feet.
.TUESDAY...North wind 5 to 10 knots becoming northeast in the
afternoon. Partly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...East wind 5 knots. Chance of rain showers
through the night. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots becoming northeast late in the
afternoon. Partly sunny. Waves 1 foot or less.

$$

LSZ146-140415-
Port Wing to Sand Island WI-
402 PM CDT Mon Oct 13 2025

.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 to 10 knots after midnight. Mostly clear.
Waves 1 to 2 feet.
.TUESDAY...North wind 5 to 10 knots becoming east late in the
afternoon. Partly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...East wind 5 knots. Slight chance of rain showers
through the night. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots. Partly sunny. Waves 1 foot or
less.

$$

LSZ147-140415-
Sand Island to Bayfield WI-
402 PM CDT Mon Oct 13 2025

.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 to 10 knots after midnight. Mostly clear.
Waves 1 to 3 feet.
.TUESDAY...North wind 5 to 10 knots becoming northeast late in
the afternoon. Mostly sunny. Waves 1 to 2 feet.
.TUESDAY NIGHT...East wind 5 knots. Slight chance of rain showers
through the night. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots. Mostly sunny. Waves 1 foot or
less.

$$

LSZ150-140415-
Outer Apostle Islands Beyond 5 NM from Mainland-
402 PM CDT Mon Oct 13 2025

.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
20 knots becoming northwest 10 to 15 knots after midnight. Mostly
clear. Waves 1 to 3 feet.
.TUESDAY...North wind 5 to 10 knots becoming northeast late in
the afternoon. Mostly sunny. Waves 1 to 2 feet.
.TUESDAY NIGHT...East wind 5 knots. Slight chance of rain showers
through the night. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots. Mostly sunny. Waves 1 foot or
less.

$$

LSZ121-140415-
Chequamegon Bay-Bayfield to Oak Point WI-
402 PM CDT Mon Oct 13 2025

.TONIGHT...West wind 5 to 10 knots becoming northwest after
midnight. Mostly clear. Waves 1 foot or less.
.TUESDAY...North wind 5 to 10 knots becoming northeast in the
afternoon. Partly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...East wind 5 knots. Slight chance of rain showers
through the night. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots becoming northeast late in the
afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ148-140415-
Oak Point to Saxon Harbor WI-
402 PM CDT Mon Oct 13 2025

.TONIGHT...West wind 5 to 10 knots becoming northwest after
midnight. Mostly clear. Waves 1 to 2 feet.
.TUESDAY...North wind 5 to 10 knots becoming northeast late in
the afternoon. Partly sunny. Waves 1 to 2 feet.
.TUESDAY NIGHT...East wind 5 knots. Slight chance of rain showers
in the evening. Waves 1 foot or less.
.WEDNESDAY...East wind 5 knots becoming northeast late in the
afternoon. Mostly sunny. Waves 1 foot or less.

$$

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

Rothstein