Nearshore Marine Forecast
Issued by NWS Duluth, MN

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991
FZUS53 KDLH 222051
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
351 PM CDT Wed May 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.

LSZ140-141-230430-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
351 PM CDT Wed May 22 2024

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 35 knots into
early evening decreasing to 25 knots. Chance of rain showers
early in the evening, then slight chance of rain showers late in
the evening. Waves 4 to 6 feet. Waves occasionally to 8 feet.
A Small Craft Advisory will be needed after the Gale Warning.
.THURSDAY...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the afternoon. Mostly sunny. Waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and
afternoon.
.THURSDAY NIGHT...West wind 5 to 10 knots becoming northeast
10 to 15 knots with gusts to around 20 knots in the late evening
and overnight. Partly cloudy. Waves 1 to 2 feet building to 1 to
3 feet early in the morning.
.FRIDAY...East wind 20 to 25 knots. Gusts up to 25 knots
increasing to 35 knots. Slight chance of rain showers in the
morning, then rain showers likely and slight chance of
thunderstorms in the afternoon. Waves 5 to 8 feet. Waves
occasionally to 11 feet. A gale warning may be needed.

$$

LSZ142-143-230430-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
351 PM CDT Wed May 22 2024

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 35 knots into
early evening decreasing to 20 knots. Chance of rain showers
early in the evening, then slight chance of rain showers late in
the evening. Waves 1 to 3 feet. A Small Craft Advisory will be
needed after the Gale Warning.
.THURSDAY...West wind 5 to 10 knots with gusts to around 20 knots
becoming southwest in the afternoon. Mostly sunny. Waves 1 to
2 feet.
.THURSDAY NIGHT...Northeast wind 5 to 10 knots rising to 20 to
25 knots with gusts to around 30 knots after midnight. Slight
chance of rain showers through the night. Waves 1 to 3 feet
building to 3 to 5 feet early in the morning. Waves occasionally
to 7 feet. A small craft advisory may be needed.
.FRIDAY...Northeast wind up to 30 knots. Gusts up to 30 knots
increasing to 35 knots in the afternoon. Chance of rain showers
through the day. Slight chance of thunderstorms in the afternoon.
Waves 7 to 10 feet. Waves occasionally to 13 feet. A gale warning
may be needed.

$$

LSZ144-145-230430-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
351 PM CDT Wed May 22 2024

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 35 knots into
early evening decreasing to 25 knots. Chance of rain showers
early in the evening, then slight chance of rain showers late in
the evening. Waves 2 to 4 feet subsiding to 1 to 2 feet after
midnight. A Small Craft Advisory will be needed after the Gale
Warning.
.THURSDAY...West wind 5 to 10 knots becoming east late in the
afternoon. Mostly sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...Northeast wind 20 to 25 knots with gusts to
around 30 knots. Chance of rain showers in the evening, then
slight chance of rain showers after midnight. Waves 1 to 3 feet
building to 3 to 5 feet early in the morning. Waves occasionally
to 7 feet. A small craft advisory may be needed.
.FRIDAY...Northeast wind up to 30 knots. Gusts up to 30 knots
increasing to 35 knots late in the afternoon. Slight chance of
rain showers in the morning, then rain showers and slight chance
of thunderstorms in the afternoon. Waves 7 to 10 feet. Waves
occasionally to 13 feet. A gale warning may be needed.

$$

LSZ146-230430-
Port Wing to Sand Island WI-
351 PM CDT Wed May 22 2024

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 35 knots into
early evening decreasing to 25 knots. Chance of rain showers
early in the evening, then slight chance of rain showers late in
the evening. Waves 3 to 5 feet subsiding to 1 to 3 feet late in
the night. A Small Craft Advisory will be needed after the Gale
Warning.
.THURSDAY...Southwest wind 10 to 15 knots becoming southeast 5 to
10 knots late in the afternoon. Mostly sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...East wind 15 to 20 knots with gusts to around
25 knots. Slight chance of rain showers through the night. Waves
1 to 2 feet building to 3 to 5 feet early in the morning. A small
craft advisory may be needed.
.FRIDAY...Northeast wind 20 to 25 knots. Gusts up to 35 knots.
Chance of rain showers in the morning, then rain showers and
slight chance of thunderstorms in the afternoon. Waves 7 to
10 feet. Waves occasionally to 12 feet. A gale warning may be
needed.

$$

LSZ147-230430-
Sand Island to Bayfield WI-
351 PM CDT Wed May 22 2024

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 35 knots
into early evening decreasing to 20 knots. Chance of rain showers
early in the evening, then slight chance of rain showers late in
the evening. Waves 3 to 5 feet subsiding to 1 to 3 feet late in
the night. A Small Craft Advisory will be needed after the Gale
Warning.
.THURSDAY...West wind 10 to 15 knots becoming south 5 to 10 knots
late in the afternoon. Mostly sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...East wind 5 to 10 knots rising to 15 to
20 knots with gusts to around 25 knots after midnight. Slight
chance of rain showers. Waves 1 to 2 feet building to 2 to 4 feet
early in the morning. A small craft advisory may be needed.
.FRIDAY...East wind up to 30 knots. Gusts up to 35 knots. Chance
of rain showers in the morning, then rain showers and slight
chance of thunderstorms in the afternoon. Waves 6 to 9 feet.
Waves occasionally to 11 feet. A gale warning may be needed.

$$

LSZ150-230430-
Outer Apostle Islands Beyond 5 NM from Mainland-
351 PM CDT Wed May 22 2024

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 35 knots into
early evening decreasing to 20 knots. Chance of rain showers
early in the evening, then slight chance of rain showers late in
the evening. Waves 3 to 5 feet subsiding to 1 to 3 feet. Waves
occasionally to 7 feet. A Small Craft Advisory will be needed
after the Gale Warning.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots becoming south 5 to 10 knots late in the afternoon.
Mostly sunny. Waves 1 to 3 feet.
.THURSDAY NIGHT...East wind 5 to 10 knots rising to 15 to
20 knots with gusts to around 25 knots after midnight. Slight
chance of rain showers. Waves 1 to 3 feet building to 3 to 5 feet
early in the morning. A small craft advisory may be needed.
.FRIDAY...East wind up to 30 knots. Gusts up to 35 knots. Chance
of rain showers in the morning, then rain showers likely and
slight chance of thunderstorms in the afternoon. Waves 7 to
10 feet. Waves occasionally to 13 feet. A gale warning may be
needed.

$$

LSZ121-230430-
Chequamegon Bay-Bayfield to Oak Point WI-
351 PM CDT Wed May 22 2024

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...West wind 15 to 20 knots. Gusts to around 35 knots
into early evening. Wind becoming southwest 5 to 10 knots with
gusts to around 20 knots after midnight. Chance of rain showers
early in the evening, then slight chance of rain showers late in
the evening. Waves 1 to 2 feet. A Small Craft Advisory will be
needed after the Gale Warning.
.THURSDAY...West wind 5 to 10 knots becoming east late in the
afternoon. Mostly sunny. Waves 1 foot or less.
.THURSDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots early in the morning. Slight chance of rain showers.
Waves 1 to 2 feet.
.FRIDAY...East wind 15 to 20 knots. Gusts up to 25 knots
increasing to 30 knots in the afternoon. Chance of rain showers
in the morning, then rain showers and slight chance of
thunderstorms in the afternoon. Waves 1 to 3 feet.

$$

LSZ148-230430-
Oak Point to Saxon Harbor WI-
351 PM CDT Wed May 22 2024

...GALE WARNING IN EFFECT UNTIL 7 PM CDT THIS EVENING...

.TONIGHT...Southwest wind 15 to 20 knots. Gusts up to 35 knots
into early evening. Chance of rain showers early in the evening,
then slight chance of rain showers late in the evening. Waves 1 to
3 feet subsiding to 1 to 2 feet in the late evening and
overnight. A Small Craft Advisory will be needed after the Gale
Warning.
.THURSDAY...West wind 5 to 10 knots becoming northeast in the
afternoon. Mostly sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...East wind 5 to 10 knots becoming northeast
15 to 20 knots after midnight. Slight chance of rain showers.
Waves 1 foot or less building to 3 to 5 feet. Waves occasionally
to 7 feet. A small craft advisory may be needed.
.FRIDAY...East wind 20 to 25 knots. Gusts up to 25 knots
increasing to 30 knots in the afternoon. Chance of rain showers
in the morning, then rain showers and slight chance of
thunderstorms in the afternoon. Waves 4 to 6 feet. Waves
occasionally to 8 feet. A small craft advisory may be needed.

$$

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

Melde