Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 232219
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Nearshore Marine Forecast
National Weather Service Duluth MN
519 PM CDT Tue Apr 23 2024

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.

LSZ140-141-240415-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
519 PM CDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.TONIGHT...Northeast wind 15 to 20 knots. Mostly clear. Waves
2 to 4 feet subsiding to 1 to 3 feet late in the night.
.WEDNESDAY...East wind 5 to 10 knots becoming south 10 to
15 knots in the afternoon. Sunny. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...Southeast wind 5 to 10 knots becoming
northwest after midnight. Mostly clear. Waves 1 foot or less.
.THURSDAY...Southeast wind 10 to 15 knots with gusts to around
20 knots becoming east with gusts to around 20 knots late in the
afternoon. Sunny. Waves 1 to 3 feet.

$$

LSZ142-143-240415-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
519 PM CDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.TONIGHT...Northeast wind 5 to 10 knots. Mostly cloudy early in
the evening then clearing. Waves 2 to 4 feet subsiding to 1 to
3 feet after midnight.
.WEDNESDAY...East wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Sunny. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to
around 20 knots easing to 5 knots early in the morning. Mostly
clear. Waves 1 to 3 feet.
.THURSDAY...East wind 15 to 20 knots. Sunny. Waves 1 foot or less
building to 2 to 4 feet in the afternoon.

$$

LSZ144-145-240415-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
519 PM CDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots
early in the evening. Mostly cloudy in the evening then clearing.
Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
.WEDNESDAY...East wind 15 to 20 knots. Sunny. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast wind 15 to 20 knots easing to 5 to
10 knots after midnight. Mostly clear. Waves 2 to 4 feet
subsiding to 1 to 2 feet after midnight.
.THURSDAY...East wind 15 to 20 knots with gusts to around
25 knots. Sunny. Waves 1 to 2 feet building to 2 to 4 feet in the
afternoon. A small craft advisory may be needed.

$$

LSZ146-240415-
Port Wing to Sand Island WI-
519 PM CDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.TONIGHT...East wind 10 to 15 knots. Gusts up to 20 knots early
in the evening. Mostly cloudy early in the evening then clearing.
Waves 2 to 4 feet.
.WEDNESDAY...East wind 15 to 20 knots. Sunny. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...East wind 10 to 15 knots easing to 5 knots
after midnight. Mostly clear. Waves 1 to 3 feet.
.THURSDAY...Southeast wind 5 knots becoming east 15 to 20 knots
in the late morning and afternoon. Sunny. Waves 1 to 3 feet.

$$

LSZ147-240415-
Sand Island to Bayfield WI-
519 PM CDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.TONIGHT...Northeast wind 10 to 15 knots. Mostly cloudy early in
the evening then clearing. Waves 2 to 4 feet.
.WEDNESDAY...East wind 10 to 15 knots. Sunny. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming southeast
early in the morning. Mostly clear. Waves 1 to 2 feet.
.THURSDAY...Southeast wind 5 to 10 knots becoming east 10 to
15 knots with gusts to around 20 knots in the afternoon. Sunny.
Waves 1 to 2 feet.

$$

LSZ121-240415-
Chequamegon Bay-Bayfield to Oak Point WI-
519 PM CDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING...

.TONIGHT...Northeast wind 10 to 15 knots. Mostly cloudy early in
the evening then clearing. Waves 1 to 2 feet.
.WEDNESDAY...East wind 5 to 10 knots. Sunny. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south after
midnight. Mostly clear. Waves 1 foot or less.
.THURSDAY...South wind 5 to 10 knots becoming southeast in the
afternoon. Sunny. Waves 1 to 2 feet.

$$

LSZ148-240415-
Oak Point to Saxon Harbor WI-
519 PM CDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING...

.TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Mostly cloudy early in the evening then
clearing. Waves 5 to 8 feet subsiding to 4 to 6 feet late in the
night. Waves occasionally to 11 feet.
.WEDNESDAY...East wind 5 to 10 knots. Sunny. Waves 3 to 5 feet
subsiding to 1 to 3 feet late in the afternoon.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south after
midnight. Mostly clear. Waves 1 to 2 feet.
.THURSDAY...South wind 5 to 10 knots becoming east in the
afternoon. Sunny. Waves 1 to 2 feet.

$$

LSZ150-240415-
Outer Apostle Islands Beyond 5 NM from Mainland-
519 PM CDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING...

.TONIGHT...Northeast wind 15 to 20 knots easing to 5 to 10 knots
late in the night. Gusts up to 20 knots early in the evening
increasing to 25 knots, then decreasing to 20 knots after
midnight. Mostly cloudy early in the evening then clearing. Waves
4 to 7 feet. Waves occasionally to 9 feet.
.WEDNESDAY...East wind 10 to 15 knots. Sunny. Waves 3 to 5 feet
subsiding to 1 to 3 feet late in the afternoon.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming southeast
early in the morning. Mostly clear. Waves 1 to 2 feet.
.THURSDAY...Southeast wind 5 to 10 knots becoming east 10 to
15 knots with gusts to around 20 knots in the afternoon. Sunny.
Waves 1 to 3 feet.

$$

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

NLy


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