Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 221450
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
950 AM 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.

LSZ140-141-222215-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
950 AM CDT Wed May 22 2024

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

.REST OF TODAY...West wind 20 to 25 knots with gales to around
35 knots. Chance of thunderstorms in the late morning and early
afternoon. Chance of rain showers through the day. Waves 7 to
10 feet. Waves occasionally to 12 feet.
.TONIGHT...West wind 15 to 20 knots with gusts to around
30 knots. Chance of rain showers in the evening. Waves 4 to
7 feet subsiding to 3 to 5 feet early in the morning. Waves
occasionally to 9 feet. A small craft advisory may be needed.
.THURSDAY...West wind 10 to 15 knots. Gusts up to 30 knots
decreasing to 20 knots. Mostly sunny. Waves 2 to 4 feet subsiding
to 1 to 2 feet in the afternoon. A small craft advisory may be
needed.
.THURSDAY NIGHT...West wind 5 to 10 knots becoming northeast
15 to 20 knots with gusts to around 25 knots in the late evening
and overnight. Slight chance of rain showers after midnight.
Waves 1 to 2 feet building to 1 to 3 feet early in the morning.

$$

LSZ142-143-222215-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
950 AM CDT Wed May 22 2024

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

.REST OF TODAY...West wind 15 to 20 knots. Gusts up to 35 knots.
Slight chance of thunderstorms late in the morning. Chance of rain
showers through the day. Waves 4 to 6 feet. Waves occasionally to
7 feet.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 20 knots. Slight chance of rain showers in the
evening. Waves 1 to 3 feet.
.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 2 feet.
.THURSDAY NIGHT...Northeast wind 20 to 25 knots. 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.

$$

LSZ144-145-222215-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
950 AM CDT Wed May 22 2024

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

.REST OF TODAY...West wind 20 to 25 knots. Gusts around 35 knots.
Chance of rain showers. Waves 4 to 6 feet. Waves occasionally to
8 feet.
.TONIGHT...West wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 20 knots in the late evening and overnight. Slight
chance of rain showers in the evening. Waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight. A small craft advisory
may be needed.
.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. Chance of rain
showers and slight chance of thunderstorms through the night.
Waves 1 to 3 feet building to 3 to 5 feet early in the morning. A
small craft advisory may be needed.

$$

LSZ146-222215-
Port Wing to Sand Island WI-
950 AM CDT Wed May 22 2024

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

.REST OF TODAY...West wind 20 to 25 knots. Gusts around 35 knots.
Slight chance of rain showers late in the morning, then chance of
rain showers early in the afternoon. Slight chance of rain
showers late. Waves 5 to 8 feet. Waves occasionally to 10 feet.
.TONIGHT...West wind 15 to 20 knots with gusts to around 30 knots
becoming southwest 10 to 15 knots with gusts to around 25 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.
A small craft advisory may be needed.
.THURSDAY...Southwest 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 15 to 20 knots with gusts to around
25 knots. Slight chance of showers and thunderstorms through the
night. Waves 1 to 3 feet building to 3 to 5 feet early in the
morning. A small craft advisory may be needed.

$$

LSZ147-222215-
Sand Island to Bayfield WI-
950 AM CDT Wed May 22 2024

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

.REST OF TODAY...West wind 20 to 25 knots. Gusts around 35 knots.
Slight chance of thunderstorms in the late morning and early
afternoon. Slight chance of rain showers through the day. Waves 5
to 8 feet. Waves occasionally to 10 feet.
.TONIGHT...Southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 to 15 knots with gusts to around
25 knots after midnight. Slight chance of rain showers in the
evening. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the
morning. Waves occasionally to 7 feet. A small craft advisory may
be needed.
.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 thunderstorms in the evening. Slight chance of rain
showers through the night. Waves 1 to 3 feet building to 3 to
5 feet early in the morning. A small craft advisory may be
needed.

$$

LSZ150-222215-
Outer Apostle Islands Beyond 5 NM from Mainland-
950 AM CDT Wed May 22 2024

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

.REST OF TODAY...Southwest wind up to 30 knots. Gusts around 35
knots. Slight chance of thunderstorms in the late morning and
early afternoon. Slight chance of rain showers through the day.
Waves 6 to 9 feet. Waves occasionally to 11 feet.
.TONIGHT...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. Waves 4 to 6 feet
subsiding to 2 to 4 feet early in the morning. Waves occasionally
to 8 feet. A small craft advisory may be needed.
.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 2 to 4 feet subsiding to 1 to 2 feet in the
late morning and afternoon.
.THURSDAY NIGHT...Southeast wind 5 to 10 knots becoming east late
in the evening, then rising to 20 to 25 knots after midnight.
Slight chance of thunderstorms in the evening. Slight chance of
rain showers through the night. Waves 1 foot or less building to
4 to 6 feet. Waves occasionally to 8 feet. A small craft advisory
may be needed.

$$

LSZ121-222215-
Chequamegon Bay-Bayfield to Oak Point WI-
950 AM CDT Wed May 22 2024

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

.REST OF TODAY...West wind 20 to 25 knots. Gusts up to 30 knots
increasing to 35 knots in the afternoon. Slight chance of rain
showers. Waves 1 to 3 feet.
.TONIGHT...Southwest wind 15 to 20 knots. Gusts up to 25 knots.
Slight chance of rain showers in the evening. Waves 1 to 2 feet.
.THURSDAY...West wind 5 to 10 knots becoming northwest early in
the afternoon, then becoming northeast late in the afternoon.
Mostly sunny. Waves 1 foot or less.
.THURSDAY NIGHT...Northeast wind 10 to 15 knots. Slight chance of
showers and thunderstorms through the night. Waves 1 to 2 feet.

$$

LSZ148-222215-
Oak Point to Saxon Harbor WI-
950 AM CDT Wed May 22 2024

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

.REST OF TODAY...West wind 20 to 25 knots. Gusts up to 30 knots
increasing to 35 knots in the afternoon. Slight chance of
thunderstorms in the late morning and early afternoon. Slight
chance of rain showers through the day. Waves 3 to 5 feet.
.TONIGHT...Southwest 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 1 to 3 feet
subsiding to 1 to 2 feet in the late evening and overnight.
.THURSDAY...West wind 10 to 15 knots becoming north 5 to 10 knots
early in the afternoon, then becoming northeast late in the
afternoon. Mostly sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...East wind 10 to 15 knots. Gusts up to 20 knots
early in the morning. Slight chance of showers and thunderstorms
through the night. Waves 1 to 2 feet building to 2 to 4 feet
early in the morning. A small craft advisory may be needed.

$$

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

Melde