866
FZUS53 KDLH 232003
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
303 PM CDT Thu May 23 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.

LSZ140-141-240430-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
303 PM CDT Thu May 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
EVENING...

.TONIGHT...West wind 5 to 10 knots becoming northeast 10 to
15 knots with gusts to around 25 knots in the late evening and
overnight. Partly cloudy. Waves 1 to 2 feet building to 1 to
3 feet late in the night.
.FRIDAY...Northeast wind up to 30 knots with gales to around
35 knots. Rain showers likely and slight chance of thunderstorms
in the afternoon. Waves 3 to 5 feet building to 7 to 10 feet in
the late morning and afternoon. Waves occasionally to 12 feet.
.FRIDAY NIGHT...East wind 20 to 25 knots with gales to around
30 knots becoming southwest 15 to 20 knots with gusts to around
25 knots after midnight, then easing to 10 to 15 knots with gusts
to around 20 knots early in the morning. Rain showers in the
evening. Slight chance of thunderstorms through the night. Chance
of rain showers after midnight. Waves 6 to 9 feet subsiding to
4 to 6 feet after midnight. Waves occasionally to 12 feet.
.SATURDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and early afternoon.
Chance of rain showers in the morning. Waves 3 to 5 feet. A small
craft advisory may be needed.

$$

LSZ143-240430-
Silver Bay Harbor to Two Harbors MN-
303 PM CDT Thu May 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...

.TONIGHT...Northeast wind 5 to 10 knots rising to 20 to 25 knots
with gusts to around 30 knots after midnight. Mostly clear early
in the evening then becoming mostly cloudy. Waves 1 to 2 feet
building to 3 to 5 feet late in the night. Waves occasionally to
7 feet.
.FRIDAY...Northeast wind up to 30 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 14 feet.
.FRIDAY NIGHT...Northeast wind 20 to 25 knots with gusts to
around 30 knots becoming northwest 15 to 20 knots with gusts to
around 25 knots late in the evening, then becoming west 10 to
15 knots with gusts to around 20 knots after midnight. Rain
showers and chance of thunderstorms in the evening, then rain
showers likely after midnight. Waves 7 to 10 feet subsiding to
2 to 4 feet. Waves occasionally to 13 feet.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots. Sunny. Waves 1 to 3 feet.

$$

LSZ142-240430-
Taconite Harbor to Silver Bay Harbor MN-
303 PM CDT Thu May 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
FRIDAY MORNING...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
EVENING...

.TONIGHT...Northeast wind 15 to 20 knots with gusts to around
25 knots. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 to 2 feet building to 2 to 4 feet late in the
night.
.FRIDAY...Northeast wind 20 to 25 knots. Gusts up to 30 knots
increasing to 35 knots 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.
.FRIDAY NIGHT...Northeast wind 20 to 25 knots with gusts to
around 30 knots becoming west 10 to 15 knots with gusts to around
25 knots after midnight. Rain showers and slight chance of
thunderstorms in the evening, then rain showers likely after
midnight. Waves 7 to 10 feet subsiding to 2 to 4 feet. Waves
occasionally to 13 feet.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots. Mostly sunny. Waves 1 to 3 feet.

$$

LSZ144-145-240430-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
303 PM CDT Thu May 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...

.TONIGHT...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 early in the evening. Waves 1 foot or less building
to 4 to 6 feet. Waves occasionally to 7 feet.
.FRIDAY...Northeast wind up to 25 knots. Gusts up to 30 knots in
the afternoon. Chance of rain showers in the morning, then rain
showers and chance of thunderstorms in the afternoon. Waves 7 to
10 feet. Waves occasionally to 13 feet.
.FRIDAY NIGHT...Northeast wind 20 to 25 knots with gusts to
around 30 knots becoming west 15 to 20 knots with gusts to around
25 knots in the late evening and overnight. Rain showers and
chance of thunderstorms in the evening. Waves 6 to 9 feet
subsiding to 2 to 4 feet. Waves occasionally to 12 feet.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots. Sunny. Waves 1 to 3 feet.

$$

LSZ146-240430-
Port Wing to Sand Island WI-
303 PM CDT Thu May 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY AFTERNOON...

.TONIGHT...East wind 15 to 20 knots with gusts to around
25 knots. Partly cloudy then becoming mostly cloudy after
midnight then becoming partly cloudy. Waves 1 to 2 feet building
to 3 to 5 feet late in the night.
.FRIDAY...Northeast wind 20 to 25 knots with gusts to around
30 knots. Chance of rain showers in the morning, then rain
showers and chance of thunderstorms in the afternoon. Waves 6 to
9 feet. Waves occasionally to 12 feet.
.FRIDAY NIGHT...Northeast wind 15 to 20 knots with gusts to
around 30 knots becoming west with gusts to around 25 knots in
the late evening and overnight. Rain showers and chance of
thunderstorms in the evening, then rain showers likely after
midnight. Waves 6 to 9 feet subsiding to 3 to 5 feet after
midnight. Waves occasionally to 11 feet.
.SATURDAY...Southwest wind 15 to 20 knots. Sunny. Waves 2 to
4 feet.

$$

LSZ147-240430-
Sand Island to Bayfield WI-
303 PM CDT Thu May 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY AFTERNOON...

.TONIGHT...East wind 15 to 20 knots with gusts to around
25 knots. Partly cloudy. Waves 1 to 2 feet building to 3 to
5 feet late in the night.
.FRIDAY...East wind 20 to 25 knots with gusts to around 30 knots.
Chance of rain showers in the morning, then rain showers and
chance of thunderstorms in the afternoon. Waves 5 to 8 feet.
Waves occasionally to 11 feet.
.FRIDAY NIGHT...East wind 15 to 20 knots with gusts to around
25 knots becoming southwest 10 to 15 knots with gusts to around
25 knots late in the evening, then becoming west 15 to 20 knots
after midnight. Rain showers and chance of thunderstorms in the
evening, then rain showers likely and slight chance of
thunderstorms after midnight. Waves 5 to 8 feet subsiding to 2 to
4 feet after midnight. Waves occasionally to 10 feet.
.SATURDAY...Southwest wind 15 to 20 knots. Sunny. Waves 2 to
4 feet.

$$

LSZ150-240430-
Outer Apostle Islands Beyond 5 NM from Mainland-
303 PM CDT Thu May 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
SATURDAY AFTERNOON...

.TONIGHT...East wind 5 to 10 knots rising to 15 to 20 knots with
gusts to around 30 knots after midnight. Partly cloudy. Waves
1 to 3 feet building to 3 to 5 feet late in the night. Waves
occasionally to 7 feet.
.FRIDAY...East wind up to 25 knots. Gusts up to 30 knots in the
afternoon. Slight chance of rain showers in the morning, then rain
showers and chance of thunderstorms in the afternoon. Waves 7 to
10 feet. Waves occasionally to 13 feet.
.FRIDAY NIGHT...Southeast wind 20 to 25 knots with gusts to
around 30 knots becoming southwest 15 to 20 knots with gusts to
around 25 knots after midnight. Rain showers and chance of
thunderstorms in the evening, then rain showers likely and slight
chance of thunderstorms after midnight. Waves 6 to 9 feet
subsiding to 3 to 5 feet after midnight. Waves occasionally to
12 feet.
.SATURDAY...Southwest wind 15 to 20 knots. Sunny. Waves 3 to
5 feet.

$$

LSZ121-240430-
Chequamegon Bay-Bayfield to Oak Point WI-
303 PM CDT Thu May 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...

.TONIGHT...Northeast wind 5 to 10 knots rising to 15 to 20 knots
with gusts to around 25 knots after midnight. Partly cloudy.
Waves 1 to 3 feet.
.FRIDAY...East wind 20 to 25 knots. Chance of rain showers in the
morning, then rain showers and chance of thunderstorms in the
afternoon. Waves 1 to 3 feet.
.FRIDAY NIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Rain showers and chance of thunderstorms in the
evening. Waves 1 to 3 feet.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots. Sunny. Waves 1 foot or less.

$$

LSZ148-240430-
Oak Point to Saxon Harbor WI-
303 PM CDT Thu May 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...

.TONIGHT...East wind 5 to 10 knots becoming northeast 15 to
20 knots with gusts to around 25 knots after midnight. Partly
cloudy. Waves 1 foot or less building to 3 to 5 feet. Waves
occasionally to 7 feet.
.FRIDAY...East wind 20 to 25 knots. Chance of rain showers in the
morning, then rain showers and chance of thunderstorms in the
afternoon. Waves 4 to 6 feet. Waves occasionally to 8 feet.
.FRIDAY NIGHT...South wind 10 to 15 knots with gusts to around
25 knots becoming southwest with gusts to around 20 knots in the
late evening and overnight. Rain showers and chance of
thunderstorms in the evening, then rain showers likely and slight
chance of thunderstorms after midnight. Waves 4 to 6 feet
subsiding to 1 to 3 feet. Waves occasionally to 8 feet.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots. Sunny. Waves 1 to 2 feet.

$$

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

Rothstein