059
FZUS53 KDLH 150823
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
323 AM CDT Tue Apr 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>142-151630-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
323 AM CDT Tue Apr 15 2025

...GALE WARNING IN EFFECT UNTIL 10 AM CDT THIS MORNING...

.TODAY...Northwest wind 20 to 25 knots. Gusts up to 35 knots
decreasing to 25 knots. Mostly sunny. Waves 2 to 4 feet subsiding
to 1 to 3 feet in the afternoon.
.TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 25 knots.
Mostly clear. Waves 1 to 2 feet.
.WEDNESDAY...North wind 5 to 10 knots becoming southeast late in
the morning, then becoming south in the afternoon. Sunny. Waves
1 foot or less.
.WEDNESDAY NIGHT...East wind 5 to 10 knots. Partly cloudy in the
evening then becoming mostly cloudy. Waves 1 to 2 feet.

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

$$

LSZ143-151630-
Silver Bay Harbor to Two Harbors MN-
323 AM CDT Tue Apr 15 2025

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

.TODAY...Northwest wind 10 to 15 knots with gusts to around
30 knots easing to 10 knots with gusts to around 20 knots late in
the afternoon. Mostly sunny. Waves 1 to 2 feet.
.TONIGHT...North wind 5 to 10 knots. Gusts up to 20 knots early
in the evening. Mostly clear. Waves 1 foot or less.
.WEDNESDAY...North wind 5 knots becoming east 10 to 15 knots in
the late morning and afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots early in the evening. Partly cloudy in the evening then
becoming mostly cloudy. Waves 1 to 2 feet.

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

$$

LSZ144-145-151630-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
323 AM CDT Tue Apr 15 2025

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

.TODAY...Northwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late morning and afternoon. Partly
sunny until late afternoon then clearing. Waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon.
.TONIGHT...North wind 5 to 10 knots. Gusts up to 20 knots early
in the evening. Mostly clear. Waves 1 to 2 feet.
.WEDNESDAY...South wind 5 knots becoming east 10 to 15 knots with
gusts to around 20 knots in the late morning and afternoon.
Sunny. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots early in the evening. Partly cloudy in the evening then
becoming mostly cloudy. Waves 1 to 2 feet.

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

$$

LSZ146-151630-
Port Wing to Sand Island WI-
323 AM CDT Tue Apr 15 2025

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

.TODAY...Northwest wind 15 to 20 knots with gusts to around
25 knots easing to 10 to 15 knots with gusts to around 20 knots
in the afternoon. Mostly sunny. Waves 3 to 5 feet subsiding to
1 to 2 feet late in the afternoon.
.TONIGHT...North wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.WEDNESDAY...North wind 5 knots becoming east 10 to 15 knots in
the late morning and afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 10 to 15 knots. Partly cloudy in the
evening then becoming mostly cloudy. Waves 1 to 2 feet.

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

$$

LSZ147-151630-
Sand Island to Bayfield WI-
323 AM CDT Tue Apr 15 2025

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

.TODAY...Northwest wind 15 to 20 knots with gusts to around
30 knots easing to 10 to 15 knots with gusts to around 25 knots
in the afternoon. Mostly sunny. Waves 3 to 5 feet subsiding to
1 to 3 feet late in the afternoon. Waves occasionally to 7 feet.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
early in the evening. Clear. Waves 1 to 2 feet.
.WEDNESDAY...North wind 5 knots becoming east in the late morning
and afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 5 to 10 knots. Partly cloudy in the
evening then becoming mostly cloudy. Waves 1 foot or less.

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

$$

LSZ150-151630-
Outer Apostle Islands Beyond 5 NM from Mainland-
323 AM CDT Tue Apr 15 2025

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

.TODAY...Northwest wind 20 to 25 knots. Gusts up to 30 knots
decreasing to 25 knots in the late morning and afternoon. Mostly
sunny. Waves 5 to 8 feet subsiding to 4 to 6 feet in the
afternoon. Waves occasionally to 10 feet.
.TONIGHT...North wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots early in the morning. Mostly clear.
Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight.
.WEDNESDAY...North wind 5 knots becoming east in the late morning
and afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 10 to 15 knots easing to 5 to
10 knots after midnight. Partly cloudy in the evening then
becoming mostly cloudy. Waves 1 to 2 feet.

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

$$

LSZ121-151630-
Chequamegon Bay-Bayfield to Oak Point WI-
323 AM CDT Tue Apr 15 2025

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

.TODAY...Northwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the afternoon. Partly sunny until late
afternoon then clearing. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
early in the evening. Mostly clear. Waves 1 foot or less.
.WEDNESDAY...Northwest wind 5 knots becoming east in the late
morning and afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming southeast
early in the morning. Partly cloudy. Waves 1 to 2 feet.

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

$$

LSZ148-151630-
Oak Point to Saxon Harbor WI-
323 AM CDT Tue Apr 15 2025

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

.TODAY...Northwest wind 15 to 20 knots with gusts to around
30 knots easing to 10 to 15 knots with gusts to around 20 knots
in the afternoon. Slight chance of snow early in the morning.
Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon.
Waves occasionally to 7 feet.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
early in the evening. Mostly clear. Waves 1 to 2 feet.
.WEDNESDAY...Northwest wind 5 knots becoming east in the late
morning and afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 10 to 15 knots becoming southeast
5 to 10 knots after midnight. Partly cloudy. Waves 1 to 2 feet.

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

$$

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

Britt