104
FZUS53 KDLH 150854
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
354 AM CDT Tue Jul 15 2025

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.

LSZ140-141-151615-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
354 AM CDT Tue Jul 15 2025

.TODAY...East wind 5 to 10 knots becoming west in the afternoon.
Areas of smoke until late afternoon. Chance of thunderstorms in
the morning. Rain showers through the day. Thunderstorms likely
in the afternoon. Waves 1 foot or less.
.TONIGHT...Northwest wind 5 to 10 knots becoming northeast 10 to
15 knots with gusts to around 20 knots in the late evening and
overnight. Rain showers with thunderstorms likely in the evening,
then chance of rain showers after midnight. Waves 1 to 2 feet.
.WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots
until late afternoon. Chance of rain showers. Waves 1 to 2 feet.
.WEDNESDAY NIGHT...Northeast wind 5 to 10 knots becoming north in
the late evening and overnight. Chance of rain showers through
the night. Waves 1 to 2 feet.

$$

LSZ143-151615-
Silver Bay Harbor to Two Harbors MN-
354 AM CDT Tue Jul 15 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY EVENING...

.TODAY...Northeast wind 5 to 10 knots becoming north late in the
afternoon. Areas of smoke in the morning. Rain showers with
thunderstorms likely through the day. Waves 1 foot or less.
.TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 20 knots
after midnight. Rain showers with thunderstorms likely in the
evening, then rain showers likely after midnight. Areas of smoke
after midnight. Waves 1 to 2 feet.
.WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and early afternoon,
then decreasing to 20 knots late in the afternoon. Rain showers
likely in the morning, then chance of rain showers in the
afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the late
morning and afternoon.
.WEDNESDAY NIGHT...Northeast wind 5 to 10 knots with gusts to
around 20 knots becoming north after midnight. Chance of rain
showers through the night. Waves 1 to 3 feet subsiding to 1 to
2 feet in the late evening and overnight.

$$

LSZ142-151615-
Taconite Harbor to Silver Bay Harbor MN-
354 AM CDT Tue Jul 15 2025

.TODAY...Northeast wind 5 to 10 knots becoming north late in the
afternoon. Areas of smoke in the morning. Rain showers with
thunderstorms likely early in the morning. Rain showers likely
and chance of thunderstorms late in the morning, then showers and
thunderstorms in the afternoon. Waves 1 foot or less.
.TONIGHT...North wind 5 to 10 knots becoming northeast with gusts
to around 20 knots after midnight. Rain showers with
thunderstorms likely in the evening, then rain showers likely
after midnight. Waves 1 to 2 feet.
.WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 20 knots
until late afternoon. Chance of rain showers. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast wind 5 to 10 knots becoming north
after midnight. Chance of rain showers through the night. Waves
1 to 3 feet.

$$

LSZ144-145-151615-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
354 AM CDT Tue Jul 15 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY EVENING...

.TODAY...East wind 5 to 10 knots becoming northeast late in the
afternoon. Areas of smoke until late afternoon. Showers likely
and chance of thunderstorms in the morning. Showers with
thunderstorms likely in the afternoon. Waves 1 foot or less.
.TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots.
Rain showers and chance of thunderstorms in the evening, then
rain showers likely and slight chance of thunderstorms after
midnight. Areas of smoke after midnight. Waves 1 to 2 feet
building to 1 to 3 feet early in the morning.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely and slight chance of thunderstorms
in the morning, then chance of rain showers in the afternoon.
Waves 2 to 4 feet.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to
around 20 knots becoming north 5 to 10 knots early in the
morning. Chance of rain showers through the night. Waves 1 to
3 feet.

$$

LSZ146-151615-
Port Wing to Sand Island WI-
354 AM CDT Tue Jul 15 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY EVENING...

.TODAY...East wind 5 to 10 knots becoming north in the afternoon.
Areas of smoke until late afternoon. Showers likely and chance of
thunderstorms in the morning. Showers with thunderstorms likely
in the afternoon. Waves 1 foot or less.
.TONIGHT...North wind 5 to 10 knots becoming northeast 10 to
15 knots with gusts to around 25 knots after midnight. Rain
showers and chance of thunderstorms in the evening, then chance
of rain showers after midnight. Waves 1 to 3 feet.
.WEDNESDAY...Northeast wind 5 to 15 knots rising to 15 to
20 knots in the late morning and afternoon. Gusts up to 25 knots.
Rain showers likely and slight chance of thunderstorms. Waves
2 to 4 feet.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to
around 20 knots becoming north 5 knots early in the morning.
Chance of rain showers through the night. Waves 1 to 3 feet
subsiding to 1 to 2 feet in the late evening and overnight.

$$

LSZ147-151615-
Sand Island to Bayfield WI-
354 AM CDT Tue Jul 15 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY EVENING...

.TODAY...Southeast wind 5 knots becoming north in the late
morning and afternoon. Areas of smoke in the morning. Chance of
showers and thunderstorms in the morning, then showers and
thunderstorms in the afternoon. Waves 1 foot or less.
.TONIGHT...North wind 5 to 10 knots with gusts to around 20 knots
becoming northeast 10 to 15 knots with gusts to around 25 knots
after midnight. Rain showers and chance of thunderstorms in the
evening, then rain showers likely after midnight. Waves 1 to
3 feet.
.WEDNESDAY...Northeast wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots late in the afternoon. Rain showers likely
and slight chance of thunderstorms. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...Northeast wind 5 to 10 knots with gusts to
around 20 knots becoming north early in the morning. Chance of
rain showers. Waves 1 to 3 feet.

$$

LSZ150-151615-
Outer Apostle Islands Beyond 5 NM from Mainland-
354 AM CDT Tue Jul 15 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY EVENING...

.TODAY...Southeast wind 5 to 10 knots becoming northeast late in
the morning, then becoming northeast 5 to 10 knots in the
afternoon. Areas of smoke in the morning. Chance of showers and
thunderstorms in the morning, then showers and thunderstorms in
the afternoon. Waves 1 foot or less.
.TONIGHT...Northeast wind 10 to 15 knots with gusts to around
25 knots becoming 5 to 15 knots with gusts to around 25 knots
early in the morning. Chance of thunderstorms in the evening.
Rain showers likely through the night. Waves 1 to 3 feet building
to 2 to 4 feet early in the morning.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely and slight chance of thunderstorms.
Waves 3 to 5 feet.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to
around 20 knots becoming north 5 to 10 knots early in the
morning. Chance of rain showers. Waves 2 to 4 feet subsiding to
1 to 2 feet after midnight. A small craft advisory may be needed.

$$

LSZ121-151615-
Chequamegon Bay-Bayfield to Oak Point WI-
354 AM CDT Tue Jul 15 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY EVENING...

.TODAY...Southwest wind 5 to 10 knots becoming northwest with
gusts to around 20 knots late in the morning, then becoming
northeast with gusts to around 20 knots in the afternoon. Areas
of smoke early in the morning. Chance of showers in the morning.
Chance of thunderstorms through the day. Showers in the
afternoon. Waves 1 foot or less.
.TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 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 1 to 2 feet.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely and slight chance of thunderstorms.
Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots early in the evening. Slight chance of thunderstorms in
the evening. Chance of rain showers through the night. Waves 1 to
2 feet.

$$

LSZ148-151615-
Oak Point to Saxon Harbor WI-
354 AM CDT Tue Jul 15 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
WEDNESDAY EVENING...

.TODAY...South wind 5 to 10 knots with gusts to around 20 knots
becoming west with gusts to around 20 knots late in the morning,
then becoming north with gusts to around 20 knots in the
afternoon. Areas of smoke early in the morning. Areas of smoke
early in the afternoon. Chance of showers and thunderstorms in
the morning. Showers and thunderstorms in the afternoon. Waves
1 foot or less.
.TONIGHT...Northeast wind 10 to 15 knots. Gusts up to 25 knots
after midnight. Chance of thunderstorms in the evening. Rain
showers likely through the night. Slight chance of thunderstorms
after midnight. Waves 1 to 3 feet building to 2 to 4 feet early
in the morning.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely and slight chance of thunderstorms.
Waves 3 to 5 feet.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots in the evening. Slight chance of thunderstorms in the
evening. Chance of rain showers through the night. Waves 2 to
4 feet subsiding to 1 to 2 feet after midnight. A small craft
advisory may be needed.

$$

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

Unruh