155
FZUS53 KDLH 230003
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
703 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.

LSZ140-141-230415-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
703 PM CDT Wed May 22 2024

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

.TONIGHT...West wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 25 knots late in the night. 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.
.THURSDAY...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the afternoon. 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.

$$

LSZ143-230415-
Silver Bay Harbor to Two Harbors MN-
703 PM CDT Wed May 22 2024

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

.TONIGHT...West wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 20 knots in the late evening and overnight. Chance
of rain showers early in the evening, then slight chance of rain
showers late in the evening. Waves 1 to 3 feet.
.THURSDAY...West wind 5 to 10 knots becoming south late in the
afternoon. 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
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.

$$

LSZ142-230415-
Taconite Harbor to Silver Bay Harbor MN-
703 PM CDT Wed May 22 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT THURSDAY...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 30 knots
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 subsiding to 1 to 2 feet in the late evening
and overnight.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots becoming southwest 5 to 10 knots in the afternoon.
Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...East wind 5 knots becoming northeast 15 to
20 knots with gusts to around 25 knots in the late evening and
overnight. 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...Northeast wind 20 to 25 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.

$$

LSZ144-145-230415-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
703 PM CDT Wed May 22 2024

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

.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots. Slight
chance of rain showers in the evening. Waves 2 to 4 feet
subsiding to 1 to 2 feet after midnight.
.THURSDAY...Southwest 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.

$$

LSZ146-230415-
Port Wing to Sand Island WI-
703 PM CDT Wed May 22 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT THURSDAY...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots early
in the evening. Slight chance of rain showers in the evening.
Waves 3 to 5 feet subsiding to 1 to 3 feet late in the night.
.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.

$$

LSZ147-230415-
Sand Island to Bayfield WI-
703 PM CDT Wed May 22 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT THURSDAY...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. 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.
.THURSDAY...West wind 10 to 15 knots becoming southeast 5 to
10 knots late in the afternoon. 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.

$$

LSZ150-230415-
Outer Apostle Islands Beyond 5 NM from Mainland-
703 PM CDT Wed May 22 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM CDT THURSDAY...

.TONIGHT...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. 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.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots becoming south 5 to 10 knots late in the afternoon.
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.

$$

LSZ121-230415-
Chequamegon Bay-Bayfield to Oak Point WI-
703 PM CDT Wed May 22 2024

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

.TONIGHT...West wind 15 to 20 knots with gusts to around 25 knots
becoming southwest 5 to 10 knots after midnight. Slight chance of
rain showers in the evening. Waves 1 to 2 feet.
.THURSDAY...West wind 5 to 10 knots becoming east late in the
afternoon. 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.

$$

LSZ148-230415-
Oak Point to Saxon Harbor WI-
703 PM CDT Wed May 22 2024

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

.TONIGHT...Southwest wind 15 to 20 knots. Gusts up to 25 knots.
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.
.THURSDAY...West wind 5 to 10 knots becoming east in the
afternoon. 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

Rothstein