Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 230302
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1002 PM CDT Mon Apr 22 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.

LSZ140-141-231015-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
1002 PM CDT Mon Apr 22 2024

.REST OF TONIGHT...West wind 5 to 10 knots. Gusts up to 20 knots
late in the evening. Rain showers likely late in the evening,
then chance of rain showers after midnight. Slight chance of rain
showers toward daybreak. Waves 1 to 3 feet.
.TUESDAY...Northwest wind 15 to 20 knots with gusts to around
25 knots becoming northeast 20 to 25 knots with gusts to around
30 knots in the late morning and afternoon. Chance of rain
showers and snow showers in the morning, then slight chance of
snow showers in the afternoon. Waves 1 to 3 feet building to 3 to
5 feet in the late morning and afternoon. Waves occasionally to
7 feet. A small craft advisory may be needed.
.TUESDAY NIGHT...Northeast wind 15 to 20 knots with gusts to
around 25 knots easing to 5 to 10 knots early in the morning.
Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet early in
the morning. A small craft advisory may be needed.
.WEDNESDAY...East wind 5 to 10 knots becoming southeast 10 to
15 knots with gusts to around 20 knots in the late morning and
afternoon. Sunny. Waves 1 to 2 feet.

$$

LSZ142-143-231015-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
1002 PM CDT Mon Apr 22 2024

.REST OF TONIGHT...West wind 5 to 10 knots. Gusts up to 20 knots
late in the evening. Chance of rain showers late in the evening,
then slight chance of rain showers after midnight. Waves 1 to
2 feet.
.TUESDAY...West wind 5 to 10 knots becoming northeast 15 to
20 knots with gusts to around 25 knots in the late morning and
early afternoon, then easing to 10 to 15 knots with gusts to
around 20 knots late in the afternoon. Rain showers likely in the
morning, then chance of rain showers and snow showers in the
afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the
afternoon. A small craft advisory may be needed.
.TUESDAY NIGHT...East wind 5 to 10 knots. Mostly clear. Waves
2 to 4 feet. A small craft advisory may be needed.
.WEDNESDAY...East wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Sunny. Waves 1 to 3 feet.

$$

LSZ144-145-231015-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
1002 PM CDT Mon Apr 22 2024

.REST OF TONIGHT...Southwest wind 5 to 10 knots. Gusts up to
20 knots late in the evening. Slight chance of rain showers
through the night. Waves 1 to 2 feet.
.TUESDAY...West wind 5 to 10 knots becoming northwest 10 to
15 knots with gusts to around 20 knots late in the morning, then
becoming northeast 15 to 20 knots with gusts to around 30 knots
in the afternoon. Rain showers likely through the day. Chance of
snow showers in the afternoon. Waves 1 to 2 feet building to 3 to
5 feet in the afternoon. Waves occasionally to 7 feet. A small
craft advisory may be needed.
.TUESDAY NIGHT...East wind 10 to 15 knots. Gusts up to 20 knots
early in the evening. Mostly clear. Waves 3 to 5 feet. A small
craft advisory may be needed.
.WEDNESDAY...East wind 15 to 20 knots. Sunny. Waves 1 to 3 feet.

$$

LSZ146-231015-
Port Wing to Sand Island WI-
1002 PM CDT Mon Apr 22 2024

.REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots in the late evening and early morning. Chance of rain
showers late in the evening, then slight chance of rain showers
after midnight. Waves 1 to 2 feet.
.TUESDAY...West wind 10 to 15 knots becoming northeast 15 to
20 knots with gusts to around 30 knots in the afternoon. Rain
showers likely in the morning, then chance of snow showers and
slight chance of rain showers 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.
.TUESDAY NIGHT...East wind 10 to 15 knots. Gusts up to 20 knots
early in the evening. Mostly clear. Waves 3 to 5 feet. A small
craft advisory may be needed.
.WEDNESDAY...East wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Sunny. Waves 1 to 3 feet.

$$

LSZ147-231015-
Sand Island to Bayfield WI-
1002 PM CDT Mon Apr 22 2024

.REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots in the late evening and early morning. Chance of rain
showers late in the evening, then slight chance of rain showers
after midnight. Waves 1 to 2 feet.
.TUESDAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming northeast 15 to 20 knots with gusts to around 30 knots
in the afternoon. Rain showers likely in the morning, then chance
of snow showers and rain showers 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.
.TUESDAY NIGHT...East wind 10 to 15 knots. Gusts up to 20 knots
early in the evening. Mostly clear. Waves 3 to 5 feet. A small
craft advisory may be needed.
.WEDNESDAY...East wind 10 to 15 knots. Sunny. Waves 1 to 3 feet.

$$

LSZ121-231015-
Chequamegon Bay-Bayfield to Oak Point WI-
1002 PM CDT Mon Apr 22 2024

.REST OF TONIGHT...Southwest wind 5 to 10 knots. Gusts up to
20 knots late in the evening. Chance of rain showers late in the
evening, then slight chance of rain showers after midnight. Waves
1 foot or less.
.TUESDAY...West wind 10 knots becoming north with gusts to around
25 knots late in the morning, then becoming northeast 20 to
25 knots with gusts to around 30 knots in the afternoon. Rain
showers likely through the day. Chance of snow showers in the
afternoon. Waves 1 to 2 feet building to 1 to 3 feet in the
afternoon. A small craft advisory may be needed.
.TUESDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to
25 knots. Mostly clear. Waves 1 to 3 feet.
.WEDNESDAY...East wind 5 to 10 knots. Sunny. Waves 1 to 2 feet.

$$

LSZ148-231015-
Oak Point to Saxon Harbor WI-
1002 PM CDT Mon Apr 22 2024

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots easing to 5 to 10 knots after midnight. Chance of
rain showers late in the evening, then slight chance of rain
showers after midnight. Waves 1 to 2 feet.
.TUESDAY...West wind 10 knots becoming north 15 to 20 knots with
gusts to around 25 knots late in the morning, then becoming
northeast 20 to 25 knots with gusts to around 30 knots in the
afternoon. Rain showers likely in the morning, then chance of
snow showers and slight chance of rain showers in the afternoon.
Waves 1 to 2 feet building to 6 to 9 feet in the afternoon. Waves
occasionally to 12 feet. A small craft advisory may be needed.
.TUESDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to
25 knots. Mostly clear. Waves 5 to 8 feet subsiding to 4 to
6 feet early in the morning. Waves occasionally to 11 feet. A
small craft advisory may be needed.
.WEDNESDAY...East wind 5 to 10 knots. Sunny. Waves 3 to 5 feet
subsiding to 1 to 3 feet late in the afternoon. A small craft
advisory may be needed.

$$

LSZ150-231015-
Outer Apostle Islands Beyond 5 NM from Mainland-
1002 PM CDT Mon Apr 22 2024

.REST OF TONIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots decreasing to 20 knots after midnight. Chance of rain
showers late in the evening, then slight chance of rain showers
after midnight. Waves 1 to 3 feet.
.TUESDAY...West wind 10 to 15 knots with gusts to around 20 knots
becoming north 20 to 25 knots with gusts to around 30 knots in
the late morning and early afternoon, then becoming northeast
15 to 20 knots with gusts to around 30 knots late in the
afternoon. Rain showers likely in the morning, then chance of
snow showers and slight chance of rain showers in the afternoon.
Waves 1 to 2 feet building to 6 to 9 feet. Waves occasionally to
12 feet. A small craft advisory may be needed.
.TUESDAY NIGHT...Northeast wind 15 to 20 knots. Gusts up to
25 knots. Mostly clear. Waves 5 to 8 feet subsiding to 4 to
6 feet early in the morning. Waves occasionally to 10 feet. A
small craft advisory may be needed.
.WEDNESDAY...East wind 10 to 15 knots. Sunny. Waves 3 to 5 feet
subsiding to 1 to 3 feet late in the afternoon. Waves
occasionally to 7 feet. A small craft advisory may be needed.

$$

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

Wolfe


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