Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 172028
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
328 PM CDT Wed Apr 17 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.

LSZ140-141-180415-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
328 PM CDT Wed Apr 17 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TONIGHT...North wind 10 to 15 knots with gusts to around
20 knots becoming west 5 to 10 knots late in the night. Drizzle
and rain showers likely early in the evening, then chance of rain
showers late in the evening. Waves 4 to 6 feet subsiding to 1 to
3 feet late in the night. Waves occasionally to 7 feet.
.THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 25 knots.
Partly sunny. Waves 1 to 3 feet building to 3 to 5 feet in the
afternoon. A small craft advisory may be needed.
.THURSDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to
3 feet after midnight. A small craft advisory may be needed.
.FRIDAY...West wind 20 to 25 knots. Gusts up to 35 knots. Slight
chance of rain showers through the day. Slight chance of snow
showers in the afternoon. Waves 3 to 5 feet. Waves occasionally
to 7 feet. A gale warning may be needed.

$$

LSZ143-180415-
Silver Bay Harbor to Two Harbors MN-
328 PM CDT Wed Apr 17 2024

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

.TONIGHT...West wind 5 to 10 knots. Slight chance of rain showers
and drizzle early in the evening. Waves 3 to 5 feet subsiding to
1 to 3 feet late in the night. Waves occasionally to 7 feet.
.THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
in the late morning and afternoon. Mostly sunny. Waves 1 to
2 feet building to 2 to 4 feet in the afternoon.
.THURSDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Partly cloudy. Waves 1 to 3 feet subsiding to 1 to
2 feet in the late evening and overnight.
.FRIDAY...West wind up to 30 knots. Slight chance of rain showers
in the afternoon. Waves 4 to 6 feet. Waves occasionally to
8 feet. A small craft advisory may be needed.

$$

LSZ142-180415-
Taconite Harbor to Silver Bay Harbor MN-
328 PM CDT Wed Apr 17 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.TONIGHT...West wind 5 to 10 knots. Chance of drizzle and rain
showers early in the evening. Waves 3 to 5 feet subsiding to 1 to
3 feet late in the night. Waves occasionally to 7 feet.
.THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
in the afternoon. Mostly sunny. Waves 1 to 2 feet building to
2 to 4 feet in the afternoon.
.THURSDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots.
Partly cloudy. Waves 1 to 3 feet subsiding to 1 to 2 feet in the
late evening and overnight.
.FRIDAY...West wind 20 to 25 knots. Gusts up to 25 knots
increasing to 35 knots. Slight chance of rain showers through the
day. Waves 3 to 5 feet. A gale warning may be needed.

$$

LSZ144-145-180415-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
328 PM CDT Wed Apr 17 2024

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

.TONIGHT...West wind 5 to 10 knots. Slight chance of drizzle
early in the evening. Waves 3 to 5 feet subsiding to 1 to 2 feet
late in the night.
.THURSDAY...West wind 10 to 15 knots. Gusts up to 25 knots.
Mostly sunny. Waves 1 to 2 feet building to 2 to 4 feet in the
afternoon.
.THURSDAY NIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and early morning,
then increasing to 25 knots early in the morning. Partly cloudy.
Waves 2 to 4 feet.
.FRIDAY...West wind up to 30 knots. Gusts up to 35 knots in the
afternoon. Slight chance of rain showers in the afternoon. Waves
5 to 8 feet. Waves occasionally to 10 feet. A gale warning may be
needed.

$$

LSZ146-180415-
Port Wing to Sand Island WI-
328 PM CDT Wed Apr 17 2024

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

.TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots
easing to 5 to 10 knots after midnight. Chance of rain showers
and slight chance of drizzle early in the evening. Patchy fog
late in the night. Waves 3 to 5 feet subsiding to 1 to 3 feet.
Waves occasionally to 7 feet.
.THURSDAY...Southwest wind 10 knots becoming west 15 to 20 knots
with gusts to around 25 knots in the late morning and afternoon.
Mostly sunny. Waves 1 to 3 feet building to 2 to 4 feet in the
afternoon. A small craft advisory may be needed.
.THURSDAY NIGHT...West wind 15 to 20 knots with gusts to around
25 knots. Partly cloudy. Waves 2 to 4 feet. A small craft
advisory may be needed.
.FRIDAY...West wind up to 30 knots. Gusts up to 35 knots. Slight
chance of rain showers in the afternoon. Waves 6 to 9 feet. Waves
occasionally to 11 feet. A gale warning may be needed.

$$

LSZ147-180415-
Sand Island to Bayfield WI-
328 PM CDT Wed Apr 17 2024

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

.TONIGHT...Northwest wind 10 knots becoming west with gusts to
around 20 knots in the late evening and overnight. Chance of rain
showers and slight chance of drizzle early in the evening. Patchy
fog early in the evening. Patchy fog late in the night. Waves
3 to 5 feet subsiding to 1 to 3 feet. Waves occasionally to
7 feet.
.THURSDAY...West wind 15 to 20 knots with gusts to around
25 knots. Mostly sunny. Waves 1 to 3 feet building to 2 to 4 feet
in the afternoon. A small craft advisory may be needed.
.THURSDAY NIGHT...West wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots early in the morning. Partly cloudy. Waves
2 to 4 feet. A small craft advisory may be needed.
.FRIDAY...West wind up to 30 knots. Gusts up to 35 knots. Slight
chance of rain showers in the afternoon. Waves 5 to 8 feet. Waves
occasionally to 11 feet. A gale warning may be needed.

$$

LSZ121-180415-
Chequamegon Bay-Bayfield to Oak Point WI-
328 PM CDT Wed Apr 17 2024

.TONIGHT...West wind 5 to 10 knots with gusts to around 20 knots
becoming west 5 to 10 knots after midnight. Slight chance of
drizzle early in the evening. Patchy fog early in the evening.
Patchy fog late in the night. Waves 1 foot or less.
.THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
in the afternoon. Slight chance of rain showers in the morning.
Waves 1 foot or less.
.THURSDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots.
Partly cloudy. Waves 1 foot or less.
.FRIDAY...West wind 15 to 20 knots. Gusts up to 25 knots
increasing to 35 knots. Slight chance of rain showers in the
afternoon. Waves 1 to 2 feet. A gale warning may be needed.

$$

LSZ148-180415-
Oak Point to Saxon Harbor WI-
328 PM CDT Wed Apr 17 2024

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

.TONIGHT...West wind 5 to 10 knots with gusts to around 20 knots
becoming west 5 to 10 knots after midnight. Patchy fog early in
the evening. Chance of rain showers and slight chance of drizzle
early in the evening. Waves 3 to 5 feet subsiding to 1 to 3 feet
after midnight.
.THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
in the afternoon. Slight chance of rain showers. Waves 1 to
2 feet.
.THURSDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Partly cloudy. Waves 1 to 2 feet.
.FRIDAY...West wind 20 to 25 knots. Gusts up to 30 knots in the
afternoon. Slight chance of rain showers in the afternoon. Waves
2 to 4 feet. A small craft advisory may be needed.

$$

LSZ150-180415-
Outer Apostle Islands Beyond 5 NM from Mainland-
328 PM CDT Wed Apr 17 2024

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

.TONIGHT...North wind 10 to 15 knots with gusts to around
20 knots becoming west 5 to 10 knots after midnight. Patchy fog
early in the evening. Chance of drizzle and rain showers early in
the evening. Waves 4 to 6 feet subsiding to 1 to 3 feet after
midnight. Waves occasionally to 8 feet.
.THURSDAY...West wind 15 to 20 knots with gusts to around
25 knots. Mostly sunny. Waves 1 to 3 feet building to 3 to 5 feet
in the afternoon. A small craft advisory may be needed.
.THURSDAY NIGHT...West wind 15 to 20 knots with gusts to around
25 knots. Partly cloudy. Waves 2 to 4 feet. A small craft
advisory may be needed.
.FRIDAY...West wind up to 30 knots. Gusts up to 35 knots. Slight
chance of rain showers in the afternoon. Waves 5 to 8 feet. Waves
occasionally to 11 feet. A gale warning may be needed.

$$

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

Wolfe


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