Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 180811
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
311 AM CDT Thu Apr 18 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.

LSZ140-141-181645-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
311 AM CDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH SUNDAY MORNING...

.TODAY...Southwest wind 15 to 20 knots with gusts to around
25 knots. Partly sunny. Waves 1 to 3 feet building to 3 to 5 feet
in the afternoon. Waves occasionally to 7 feet.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. Slight
chance of rain showers in the evening. Waves 3 to 5 feet. Waves
occasionally to 7 feet.
.FRIDAY...West wind 20 to 25 knots. Gusts up to 25 knots
increasing to 30 knots in the afternoon. Slight chance of rain
showers and snow showers in the afternoon. Waves 4 to 6 feet.
Waves occasionally to 7 feet.
.FRIDAY NIGHT...West wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 25 knots late in the evening, then increasing to
30 knots after midnight decreasing to 25 knots early in the
morning. Slight chance of rain showers and snow showers in the
evening. Waves 4 to 6 feet subsiding to 1 to 3 feet early in the
morning. Waves occasionally to 7 feet.

$$

LSZ142-143-181645-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
311 AM CDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH SUNDAY MORNING...

.TODAY...Southwest wind 15 to 20 knots. Mostly sunny. Waves 1 to
3 feet building to 2 to 4 feet in the afternoon.
.TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots early in the morning. Slight chance of
rain showers in the evening. Waves 1 to 3 feet subsiding to 1 to
2 feet in the late evening and overnight.
.FRIDAY...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the afternoon. Slight chance of rain
showers and snow showers in the afternoon. Waves 4 to 6 feet.
Waves occasionally to 7 feet.
.FRIDAY NIGHT...West wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 25 knots in the late evening and overnight. Slight
chance of rain showers in the evening. Slight chance of snow
showers through the night. Waves 3 to 5 feet subsiding to 1 to
3 feet early in the morning. Waves occasionally to 7 feet.

$$

LSZ144-145-181645-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
311 AM CDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH SATURDAY EVENING...

.TODAY...Southwest wind 15 to 20 knots with gusts to around
25 knots. Partly sunny. Waves 1 to 2 feet building to 2 to 4 feet
in the afternoon.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots late in the evening, then increasing to
25 knots after midnight. Mostly cloudy in the evening then
becoming partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet
after midnight.
.FRIDAY...West wind 20 to 25 knots. Gusts up to 25 knots
increasing to 30 knots in the late morning and afternoon. Slight
chance of rain showers and snow showers in the afternoon. Waves
4 to 7 feet. Waves occasionally to 9 feet.
.FRIDAY NIGHT...West wind 20 to 25 knots. Gusts up to 30 knots
early in the evening. Slight chance of rain showers in the
evening. Slight chance of snow showers through the night. Waves
4 to 7 feet. Waves occasionally to 9 feet.

$$

LSZ146-181645-
Port Wing to Sand Island WI-
311 AM CDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH SUNDAY MORNING...

.TODAY...Southwest wind 15 to 20 knots with gusts to around
25 knots. Mostly cloudy early in the morning then becoming mostly
sunny. Waves 1 to 3 feet building to 2 to 4 feet in the
afternoon.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots late in the evening, then increasing to
25 knots after midnight. Partly cloudy. Waves 2 to 4 feet.
.FRIDAY...West wind 20 to 25 knots with gusts to around 30 knots.
Slight chance of rain showers and snow showers in the afternoon.
Waves 5 to 8 feet. Waves occasionally to 10 feet.
.FRIDAY NIGHT...West wind 20 to 25 knots. Gusts up to 30 knots
early in the evening. Slight chance of rain showers and snow
showers in the evening. Waves 4 to 7 feet. Waves occasionally to
9 feet.

$$

LSZ147-181645-
Sand Island to Bayfield WI-
311 AM CDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH SUNDAY MORNING...

.TODAY...Southwest wind 15 to 20 knots. Gusts up to 25 knots.
Partly sunny. Waves 1 to 3 feet building to 2 to 4 feet in the
afternoon.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots late in the evening, then increasing to
25 knots after midnight. Partly cloudy. Waves 2 to 4 feet.
.FRIDAY...West wind 20 to 25 knots. Gusts up to 30 knots in the
late morning and afternoon. Slight chance of rain showers and
snow showers in the afternoon. Waves 4 to 7 feet. Waves
occasionally to 9 feet.
.FRIDAY NIGHT...West wind 20 to 25 knots. Gusts up to 30 knots
decreasing to 25 knots in the late evening and overnight. Slight
chance of rain showers in the evening. Waves 4 to 6 feet. Waves
occasionally to 8 feet.

$$

LSZ121-181645-
Chequamegon Bay-Bayfield to Oak Point WI-
311 AM CDT Thu Apr 18 2024

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the late morning and afternoon. Mostly cloudy. Waves 1 foot or
less.
.TONIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Mostly cloudy in the evening then becoming partly
cloudy. Waves 1 foot or less.
.FRIDAY...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the afternoon. Slight chance of rain
showers and snow showers in the afternoon. Waves 1 to 3 feet.
.FRIDAY NIGHT...West wind 15 to 20 knots with gusts to around
25 knots easing to 10 to 15 knots with gusts to around 25 knots
in the late evening and overnight. Mostly cloudy. Waves 1 to
3 feet.

$$

LSZ148-181645-
Oak Point to Saxon Harbor WI-
311 AM CDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH SUNDAY MORNING...

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Partly sunny. Waves 1 to 2 feet.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots early in the morning. Mostly cloudy in the
evening then becoming partly cloudy. Waves 1 to 2 feet.
.FRIDAY...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the afternoon. Slight chance of rain
showers and snow showers in the afternoon. Waves 2 to 4 feet.
.FRIDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
early in the evening then 25 knots early in the morning. Slight
chance of rain showers in the evening. Slight chance of snow
showers through the night. Waves 2 to 4 feet.

$$

LSZ150-181645-
Outer Apostle Islands Beyond 5 NM from Mainland-
311 AM CDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM CDT THIS MORNING
THROUGH SUNDAY MORNING...

.TODAY...Southwest wind 15 to 20 knots. Gusts up to 25 knots.
Partly sunny. Waves 1 to 3 feet building to 2 to 4 feet in the
late morning and afternoon.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots early
in the evening then 25 knots after midnight. Partly cloudy. Waves
3 to 5 feet. Waves occasionally to 7 feet.
.FRIDAY...West wind 20 to 25 knots. Gusts up to 30 knots in the
late morning and afternoon. Slight chance of rain showers and
snow showers in the afternoon. Waves 4 to 7 feet. Waves
occasionally to 10 feet.
.FRIDAY NIGHT...West wind 20 to 25 knots. Gusts up to 30 knots
decreasing to 25 knots in the late evening and overnight. Slight
chance of rain showers and snow showers in the evening. Waves
4 to 7 feet. Waves occasionally to 9 feet.

$$

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

Melde


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