440
FZUS53 KDLH 130633
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
133 AM 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.

LSZ140-131615-
Grand Portage to Grand Marais MN-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...West wind 10 to 15 knots with gusts to around 25 knots.
Sunny. Waves 3 to 5 feet. Waves occasionally to 7 feet.
.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
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 late in the afternoon. Mostly sunny. Waves
1 foot or less.
.TUESDAY NIGHT...West wind 5 to 10 knots becoming north early in
the morning. Mostly cloudy. Waves 1 foot or less.

$$

LSZ141-131615-
Grand Marais to Taconite Harbor MN-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...West wind 10 to 15 knots with gusts to around 25 knots.
Sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late
morning and afternoon.
.TONIGHT...West wind 5 to 10 knots with gusts to around 20 knots
becoming northwest early in the morning. Mostly clear. Waves 1 to
2 feet.
.TUESDAY...Northwest wind 5 to 10 knots becoming west in the
afternoon. Mostly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...West wind 5 knots becoming northeast early in
the morning. Mostly cloudy. Waves 1 foot or less.

$$

LSZ142-131615-
Taconite Harbor to Silver Bay Harbor MN-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...West wind 10 to 15 knots with gusts to around 205knots.
Sunny. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots easing to 5 knots early
in the morning. Mostly clear. Waves 1 foot or less.
.TUESDAY...Northwest wind 5 knots becoming southwest late in the
afternoon. Mostly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...West wind 5 knots early in the evening becoming
variable 10 knots or less. Mostly cloudy. Waves 1 foot or less.

$$

LSZ143-131615-
Silver Bay Harbor to Two Harbors MN-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late morning and afternoon. Sunny.
Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots easing to 5 knots early
in the morning. Mostly clear. Waves 1 foot or less.
.TUESDAY...North wind 5 knots becoming southeast late in the
afternoon. Partly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...Southeast wind 5 knots becoming northeast in the
late evening and overnight. Mostly cloudy. Waves 1 foot or less.

$$

LSZ144-131615-
Two Harbors to Duluth MN-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late morning and afternoon. Sunny.
Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming north early in
the morning. 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. Mostly cloudy. Waves 1 foot
or less.

$$

LSZ145-131615-
Duluth MN to Port Wing WI-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late morning and afternoon. Sunny.
Waves 1 to 3 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming north early in
the morning. Mostly clear. Waves 1 to 2 feet.
.TUESDAY...North wind 5 to 10 knots becoming northeast late in
the afternoon. Partly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...East wind 5 knots. Mostly cloudy. Waves 1 foot
or less.

$$

LSZ146-131615-
Port Wing to Sand Island WI-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...West wind 15 to 20 knots with gusts to around 25 knots.
Sunny. Waves 2 to 4 feet.
.TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots
becoming northwest 5 to 10 knots in the late evening and
overnight. Mostly clear. Waves 1 to 3 feet.
.TUESDAY...North wind 5 to 10 knots becoming northeast late in
the afternoon. Partly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...East wind 5 knots. Mostly cloudy. Waves 1 foot
or less.

$$

LSZ147-131615-
Sand Island to Bayfield WI-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...West wind 15 to 20 knots with gusts to around 25 knots.
Sunny. Waves 2 to 4 feet.
.TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots
becoming northwest 5 to 10 knots after midnight. Mostly clear.
Waves 1 to 3 feet.
.TUESDAY...North wind 5 to 10 knots. Partly sunny. Waves 1 foot
or less.
.TUESDAY NIGHT...East wind 5 knots. Mostly cloudy. Waves 1 foot
or less.

$$

LSZ150-131615-
Outer Apostle Islands Beyond 5 NM from Mainland-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...West wind 15 to 20 knots with gusts to around 25 knots.
Sunny. Waves 3 to 5 feet.
.TONIGHT...Northwest wind 10 to 15 knots with gusts to around
20 knots becoming northwest 10 to 15 knots early in the morning.
Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet in the
late evening and overnight.
.TUESDAY...North wind 5 to 10 knots. Partly sunny. Waves 1 to
2 feet.
.TUESDAY NIGHT...East wind 5 knots. Mostly cloudy. Waves 1 foot
or less.

$$

LSZ121-131615-
Chequamegon Bay-Bayfield to Oak Point WI-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...West wind 5 to 10 knots with gusts to around 25 knots.
Sunny. Waves 1 foot or less.
.TONIGHT...West wind 5 to 10 knots becoming northwest early in
the morning. Mostly clear. Waves 1 foot or less.
.TUESDAY...North wind 5 to 10 knots becoming northeast late in
the afternoon. Partly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...East wind 5 knots. Mostly cloudy. Waves 1 foot
or less.

$$

LSZ148-131615-
Oak Point to Saxon Harbor WI-
133 AM CDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...West wind 10 to 15 knots with gusts to around 25 knots.
Sunny. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.TUESDAY...North wind 5 to 10 knots. Partly sunny. Waves 1 foot
or less.
.TUESDAY NIGHT...Northeast wind 5 knots becoming east after
midnight. Slight chance of rain showers in the evening. Waves
1 foot or less.

$$

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

NLy