Nearshore Marine Forecast
Issued by NWS Duluth, MN

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051
FZUS53 KDLH 302359
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
659 PM CDT Tue Apr 30 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.

LSZ140-141-011015-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
659 PM CDT Tue Apr 30 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH WEDNESDAY MORNING...

.REST OF TONIGHT...Southeast wind 5 knots becoming northeast
20 to 25 knots with gusts to around 30 knots in the late evening
and overnight. Slight chance of rain late in the evening. Chance
of rain after midnight, then rain toward daybreak. Patchy fog
toward daybreak. Waves 1 to 2 feet building to 4 to 6 feet after
midnight. Waves occasionally to 7 feet.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
30 knots becoming west 10 to 15 knots with gusts to around
20 knots in the afternoon. Patchy fog through the day. Rain
likely in the morning. Slight chance of rain in the afternoon.
Waves 3 to 5 feet subsiding to 1 to 3 feet late in the afternoon.
Waves occasionally to 7 feet.
.WEDNESDAY NIGHT...Northwest wind 5 to 10 knots with gusts to
around 20 knots becoming north early in the morning. Partly
cloudy. Waves 1 to 3 feet.
.THURSDAY...North wind 5 to 10 knots becoming east 15 to 20 knots
with gusts to around 25 knots in the late morning and afternoon.
Chance of rain in the afternoon. Waves 1 to 2 feet building to
3 to 5 feet in the afternoon. A small craft advisory may be
needed.

$$

LSZ143-011015-
Silver Bay Harbor to Two Harbors MN-
659 PM CDT Tue Apr 30 2024

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

.REST OF TONIGHT...Northeast wind 20 to 25 knots with gusts to
around 30 knots. Slight chance of rain early in the evening, then
chance of rain late in the evening. Rain after midnight. Patchy
fog after midnight. Waves 1 to 3 feet building to 4 to 6 feet
after midnight. Waves occasionally to 7 feet.
.WEDNESDAY...North wind 10 to 15 knots with gusts to around
25 knots becoming west with gusts to around 20 knots in the late
morning and afternoon. Patchy fog in the morning. Chance of rain
in the morning. Waves 3 to 5 feet. Waves occasionally to 7 feet.
.WEDNESDAY NIGHT...Northwest wind 5 to 10 knots becoming north
after midnight. Partly cloudy. Waves 1 to 2 feet.
.THURSDAY...Northeast wind 5 to 10 knots rising to 20 to 25 knots
with gusts to around 30 knots in the late morning and afternoon.
Chance of rain in the morning, then rain likely in the afternoon.
Waves 1 to 2 feet building to 5 to 8 feet. Waves occasionally to
10 feet. A small craft advisory may be needed.

$$

LSZ142-011015-
Taconite Harbor to Silver Bay Harbor MN-
659 PM CDT Tue Apr 30 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH WEDNESDAY MORNING...

.REST OF TONIGHT...East wind 5 to 10 knots becoming northeast
10 to 15 knots with gusts to around 20 knots late in the evening,
then rising to 20 to 25 knots with gusts to around 30 knots after
midnight. Chance of rain late in the evening. Rain after
midnight. Patchy fog after midnight. Waves 1 to 2 feet building
to 4 to 6 feet after midnight. Waves occasionally to 8 feet.
.WEDNESDAY...North wind 15 to 20 knots with gusts to around
25 knots becoming west 10 knots with gusts to around 20 knots
late in the morning, then rising to 10 to 15 knots with gusts to
around 20 knots in the afternoon. Patchy fog in the morning. Rain
likely in the morning. Waves 4 to 6 feet subsiding to 1 to 3 feet
in the afternoon. Waves occasionally to 7 feet.
.WEDNESDAY NIGHT...Northwest wind 5 to 10 knots becoming north
early in the morning. Partly cloudy. Waves 1 to 2 feet.
.THURSDAY...Northeast wind 20 to 25 knots. Slight chance of rain
in the morning, then rain likely in the afternoon. Waves 1 to
2 feet building to 4 to 7 feet. Waves occasionally to 9 feet. A
small craft advisory may be needed.

$$

LSZ144-145-011015-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
659 PM CDT Tue Apr 30 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM CDT WEDNESDAY...

.REST OF TONIGHT...Northeast wind 10 to 15 knots with gusts to
around 20 knots rising to 20 to 25 knots with gusts to around
30 knots in the late evening and overnight. Chance of rain early
in the evening, then rain in the late evening and early morning.
Rain likely toward daybreak. Patchy fog in the late evening and
overnight. Waves 1 to 2 feet building to 3 to 5 feet in the late
evening and overnight.
.WEDNESDAY...Northwest wind 10 to 15 knots becoming west in the
late morning and afternoon. Gusts up to 20 knots. Patchy fog in
the morning. Chance of rain in the morning. Waves 2 to 4 feet. A
small craft advisory may be needed.
.WEDNESDAY NIGHT...West wind 5 to 10 knots becoming northeast
after midnight. Partly cloudy. Waves 1 to 2 feet.
.THURSDAY...Northeast wind up to 30 knots. Chance of rain through
the day. Waves 1 to 2 feet building to 6 to 9 feet. Waves
occasionally to 11 feet. A small craft advisory may be needed.

$$

LSZ146-011015-
Port Wing to Sand Island WI-
659 PM CDT Tue Apr 30 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH WEDNESDAY AFTERNOON...

.REST OF TONIGHT...East wind 20 to 25 knots with gusts to around
30 knots becoming northeast 15 to 20 knots with gusts to around
30 knots toward daybreak. Chance of rain in the evening, then
rain after midnight. Patchy fog after midnight. Waves 1 to 3 feet
building to 2 to 4 feet after midnight.
.WEDNESDAY...Northwest wind 10 to 15 knots with gusts to around
25 knots becoming west with gusts to around 20 knots in the late
morning and afternoon. Patchy fog in the morning. Chance of rain
in the morning. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...West wind 5 to 10 knots becoming southeast
after midnight, then becoming east early in the morning. Partly
cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late
evening and overnight.
.THURSDAY...East wind 5 to 10 knots becoming northeast 20 to
25 knots in the late morning and afternoon. Chance of rain in the
morning, then rain likely in the afternoon. Waves 1 foot or less
building to 5 to 8 feet. Waves occasionally to 10 feet. A small
craft advisory may be needed.

$$

LSZ147-011015-
Sand Island to Bayfield WI-
659 PM CDT Tue Apr 30 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH WEDNESDAY AFTERNOON...

.REST OF TONIGHT...Northeast wind 15 to 20 knots with gusts to
around 30 knots. Slight chance of rain early in the evening, then
rain likely late in the evening. Rain after midnight. Patchy fog
after midnight. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.WEDNESDAY...Northwest wind 10 to 15 knots with gusts to around
25 knots becoming west with gusts to around 20 knots in the late
morning and afternoon. Patchy fog in the morning. Chance of rain
in the morning. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...West wind 5 to 10 knots becoming east early in
the morning. Partly cloudy. Waves 1 to 3 feet.
.THURSDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Chance of rain in the morning, then rain likely in the
afternoon. Waves 1 to 2 feet building to 4 to 6 feet in the
afternoon. Waves occasionally to 8 feet. A small craft advisory
may be needed.

$$

LSZ121-011015-
Chequamegon Bay-Bayfield to Oak Point WI-
659 PM CDT Tue Apr 30 2024

.REST OF TONIGHT...Northeast wind 15 to 20 knots with gusts to
around 25 knots. Chance of rain in the evening, then rain after
midnight. Patchy fog after midnight. Waves 1 to 2 feet.
.WEDNESDAY...West wind 10 to 15 knots with gusts to around
20 knots. Patchy fog in the morning. Chance of rain in the
morning. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...West wind 5 to 10 knots becoming south after
midnight, then becoming east early in the morning. Partly cloudy.
Waves 1 foot or less.
.THURSDAY...Northeast wind 10 to 15 knots with gusts to around
25 knots. Chance of rain through the day. Waves 1 to 3 feet.

$$

LSZ148-011015-
Oak Point to Saxon Harbor WI-
659 PM CDT Tue Apr 30 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 4 AM
CDT WEDNESDAY...

.REST OF TONIGHT...Northeast wind 15 to 20 knots with gusts to
around 25 knots. Rain likely in the evening, then rain after
midnight. Patchy fog after midnight. Waves 1 to 3 feet building
to 2 to 4 feet after midnight.
.WEDNESDAY...West wind 10 to 15 knots with gusts to around
20 knots. Patchy fog in the morning. Chance of rain in the
morning. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...West wind 5 to 10 knots becoming southeast
early in the morning. Partly cloudy. Waves 1 to 2 feet.
.THURSDAY...East wind 5 to 10 knots becoming northeast 15 to
20 knots with gusts to around 25 knots in the afternoon. Chance
of rain in the morning, then rain likely in the afternoon. Waves
1 to 3 feet building to 2 to 4 feet late in the afternoon. A
small craft advisory may be needed.

$$

LSZ150-011015-
Outer Apostle Islands Beyond 5 NM from Mainland-
659 PM CDT Tue Apr 30 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM CDT THIS EVENING
THROUGH WEDNESDAY AFTERNOON...

.REST OF TONIGHT...East wind 10 to 15 knots with gusts to around
20 knots rising to 20 to 25 knots with gusts to around 30 knots
after midnight. Chance of rain late in the evening. Rain after
midnight. Rain likely toward daybreak. Patchy fog after midnight.
Waves 1 to 3 feet building to 4 to 6 feet after midnight. Waves
occasionally to 7 feet.
.WEDNESDAY...Northwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 to 15 knots with gusts to around
25 knots in the late morning and afternoon. Patchy fog in the
morning. Chance of rain in the morning. Waves 3 to 5 feet. Waves
occasionally to 7 feet.
.WEDNESDAY NIGHT...West wind 5 to 10 knots becoming southwest
after midnight, then becoming east early in the morning. Partly
cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late
evening and overnight.
.THURSDAY...Northeast wind 20 to 25 knots. Chance of rain in the
morning, then rain likely in the afternoon. Waves 1 to 2 feet
building to 4 to 7 feet in the afternoon. Waves occasionally to
9 feet. A small craft advisory may be needed.

$$

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

KML