174
FZUS53 KDLH 060809
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
309 AM CDT Sun Apr 6 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.

LSZ140-141-061615-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
309 AM CDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY MORNING...

.TODAY...Northwest wind 5 to 10 knots becoming north 10 to
15 knots in the afternoon. Chance of snow late in the afternoon.
Waves 1 foot or less.
.TONIGHT...North wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the late evening and early morning,
then decreasing to 25 knots early in the morning. Chance of snow
in the evening, then slight chance of snow after midnight. Waves
1 to 2 feet building to 2 to 4 feet in the late evening and
overnight.
.MONDAY...North wind 15 to 20 knots. Gusts up to 25 knots. Sunny.
Waves 1 to 3 feet.
.MONDAY NIGHT...North wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Mostly clear. Waves 1 to 2 feet.

Note...Wave height forecasts are for ice free areas.

$$

LSZ142-143-061615-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
309 AM CDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY MORNING...

.TODAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming northwest with gusts to around 20 knots late in the
afternoon. Slight chance of snow late in the afternoon. Waves
1 foot or less.
.TONIGHT...North wind 15 to 20 knots with gusts to around
25 knots. Slight chance of snow in the evening. Waves 1 to
2 feet.
.MONDAY...North wind 10 to 15 knots. Gusts up to 20 knots in the
morning. Sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...North wind 5 to 10 knots. Gusts up to 20 knots
early in the evening. Mostly clear. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.

$$

LSZ144-061615-
Two Harbors to Duluth MN-
309 AM CDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY MORNING...

.TODAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming north late in the afternoon. Mostly sunny. Waves 1 foot
or less.
.TONIGHT...North wind 15 to 20 knots. Gusts up to 25 knots in the
late evening and early morning decreasing to 20 knots. Slight
chance of snow in the evening. Waves 1 to 2 feet.
.MONDAY...North wind 10 to 15 knots. Gusts up to 20 knots early
in the morning. Sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...North wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.

Note...Wave height forecasts are for ice free areas.

$$

LSZ145-061615-
Duluth MN to Port Wing WI-
309 AM CDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.TODAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming northeast late in the afternoon. Mostly sunny. Waves
1 to 2 feet.
.TONIGHT...North wind 15 to 20 knots with gusts to around
25 knots. Slight chance of snow. Waves 1 to 2 feet building to
3 to 5 feet in the late evening and overnight.
.MONDAY...North wind 10 to 15 knots. Gusts up to 20 knots in the
morning. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet
in the afternoon.
.MONDAY NIGHT...North wind 5 to 10 knots. Mostly clear. Waves
1 to 2 feet.

Note...Wave height forecasts are for ice free areas.

$$

LSZ146-061615-
Port Wing to Sand Island WI-
309 AM CDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.TODAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming northeast 5 to 10 knots late in the afternoon. Slight
chance of rain late in the afternoon. Waves 1 to 2 feet.
.TONIGHT...North wind 15 to 20 knots with gusts to around
25 knots. Slight chance of snow through the night. Waves 1 to
3 feet building to 4 to 6 feet in the late evening and overnight.
Waves occasionally to 7 feet.
.MONDAY...North wind 15 to 20 knots easing to 5 to 10 knots in
the afternoon. Mostly sunny. Waves 3 to 5 feet subsiding to 1 to
2 feet late in the afternoon.
.MONDAY NIGHT...North wind 5 to 10 knots. Mostly clear. Waves
1 to 2 feet.

Note...Wave height forecasts are for ice free areas.

$$

LSZ147-061615-
Sand Island to Bayfield WI-
309 AM CDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.TODAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming north 5 to 10 knots late in the afternoon. Slight chance
of snow late in the afternoon. Waves 1 to 2 feet.
.TONIGHT...North wind 15 to 20 knots. Gusts up to 25 knots in the
late evening and overnight. Chance of snow in the evening, then
slight chance of snow after midnight. Waves 1 to 3 feet building
to 4 to 6 feet in the late evening and overnight. Waves
occasionally to 7 feet.
.MONDAY...North wind 15 to 20 knots easing to 5 to 10 knots late
in the afternoon. Partly sunny. Waves 3 to 5 feet subsiding to
1 to 2 feet.
.MONDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves
1 to 2 feet.

Note...Wave height forecasts are for ice free areas.

$$

LSZ150-061615-
Outer Apostle Islands Beyond 5 NM from Mainland-
309 AM CDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.TODAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming north late in the afternoon. Slight chance of snow late
in the afternoon. Waves 1 to 2 feet.
.TONIGHT...North wind 20 to 25 knots. Gusts up to 25 knots
increasing to 30 knots late in the evening. Chance of snow
through the night. Waves 1 to 3 feet building to 4 to 7 feet in
the late evening and overnight. Waves occasionally to 9 feet.
.MONDAY...North wind 15 to 20 knots with gusts to around 25 knots
easing to 5 to 10 knots late in the afternoon. Freezing spray in
the morning. Waves 4 to 7 feet subsiding to 3 to 5 feet in the
afternoon. Waves occasionally to 9 feet.
.MONDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves
1 to 2 feet.

Note...Wave height forecasts are for ice free areas.

$$

LSZ121-061615-
Chequamegon Bay-Bayfield to Oak Point WI-
309 AM CDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.TODAY...West wind 5 to 10 knots with gusts to around 20 knots
becoming north in the afternoon. Slight chance of rain late in
the afternoon. Waves 1 foot or less.
.TONIGHT...North wind 15 to 20 knots. Gusts up to 25 knots in the
late evening and overnight. Chance of snow. Waves 1 to 2 feet.
.MONDAY...North wind 10 to 15 knots easing to 5 to 10 knots in
the afternoon. Gusts up to 20 knots in the morning. Mostly cloudy
in the morning then becoming mostly sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...North wind 5 knots becoming northwest early in
the morning. Mostly clear. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.

$$

LSZ148-061615-
Oak Point to Saxon Harbor WI-
309 AM CDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.TODAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming north 5 to 10 knots early in the afternoon, then
becoming northeast late in the afternoon. Chance of snow and
slight chance of rain late in the afternoon. Waves 1 foot or
less.
.TONIGHT...Northeast wind 15 to 20 knots. Gusts up to 25 knots in
the late evening and overnight. Chance of snow. Waves 1 to 2 feet
building to 4 to 7 feet in the late evening and overnight. Waves
occasionally to 9 feet.
.MONDAY...North wind 15 to 20 knots with gusts to around 25 knots
easing to 5 to 10 knots late in the afternoon. Freezing spray in
the morning. Waves 4 to 7 feet subsiding to 2 to 4 feet late in
the afternoon. Waves occasionally to 9 feet.
.MONDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves
1 to 3 feet.

Note...Wave height forecasts are for ice free areas.

$$

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

Wolfe