367
FZUS53 KDLH 160209
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
909 PM 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.

LSZ140-141-161015-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
909 PM CDT Tue Jul 15 2025

.REST OF TONIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots after midnight. Rain showers likely and slight chance of
thunderstorms late 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
after midnight. Chance of rain showers. Waves 1 to 2 feet.
.THURSDAY...Northwest wind 5 to 10 knots becoming southwest 10 to
15 knots with gusts to around 20 knots in the afternoon. Sunny.
Waves 1 foot or less.

$$

LSZ143-161015-
Silver Bay Harbor to Two Harbors MN-
909 PM CDT Tue Jul 15 2025

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

.REST OF TONIGHT...Northeast wind 10 to 15 knots with gusts to
around 20 knots. Rain showers and chance of thunderstorms late in
the evening, then chance of rain showers after midnight. Rain
showers likely toward daybreak. Waves 1 to 3 feet.
.WEDNESDAY...Northeast wind 10 to 15 knots with gusts to around
20 knots. Rain showers likely 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 after midnight.
Chance of rain showers. Waves 1 to 3 feet subsiding to 1 to
2 feet in the late evening and overnight.
.THURSDAY...North wind 5 to 10 knots becoming south in the
afternoon. Sunny. Waves 1 foot or less.

$$

LSZ142-161015-
Taconite Harbor to Silver Bay Harbor MN-
909 PM CDT Tue Jul 15 2025

.REST OF TONIGHT...Northeast wind 5 to 10 knots. Gusts up to
20 knots late in the evening. Chance of thunderstorms late in the
evening. Chance of rain showers through the night. 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. Waves 1 to 3 feet.
.THURSDAY...Northwest wind 5 knots becoming southwest in the
afternoon. Sunny. Waves 1 foot or less.

$$

LSZ144-145-161015-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
909 PM CDT Tue Jul 15 2025

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

.REST OF TONIGHT...Northeast wind 15 to 20 knots. Gusts up to
20 knots increasing to 25 knots toward daybreak. Chance of
thunderstorms late in the evening. Chance of rain showers in the
late evening and early morning, then rain showers likely toward
daybreak. Waves 1 to 3 feet building to 2 to 4 feet toward
daybreak.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely 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. Waves 2 to 4 feet subsiding to
1 to 3 feet in the late evening and overnight.
.THURSDAY...North wind 5 to 10 knots becoming southeast in the
afternoon. Sunny. Waves 1 foot or less.

$$

LSZ146-161015-
Port Wing to Sand Island WI-
909 PM CDT Tue Jul 15 2025

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

.REST OF TONIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots increasing to 25 knots after midnight. Rain showers and
chance of thunderstorms late in the evening, then chance of rain
showers after midnight. Rain showers likely toward daybreak.
Waves 1 to 3 feet.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely 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 in the evening, then slight
chance of rain showers after midnight. Waves 1 to 3 feet
subsiding to 1 to 2 feet in the late evening and overnight.
.THURSDAY...Northwest wind 5 knots becoming south in the
afternoon. Sunny. Waves 1 foot or less.

$$

LSZ147-161015-
Sand Island to Bayfield WI-
909 PM CDT Tue Jul 15 2025

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

.REST OF TONIGHT...Northeast wind 10 to 15 knots. Gusts up to
25 knots. Rain showers and chance of thunderstorms late in the
evening, then chance of rain showers 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
in the morning, then chance of rain showers in the afternoon.
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 in the evening, then slight chance of rain showers
after midnight. Waves 1 to 3 feet.
.THURSDAY...Northwest wind 5 knots becoming south in the
afternoon. Sunny. Waves 1 foot or less.

$$

LSZ150-161015-
Outer Apostle Islands Beyond 5 NM from Mainland-
909 PM CDT Tue Jul 15 2025

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

.REST OF TONIGHT...Northeast wind 15 to 20 knots. Gusts up to
20 knots increasing to 25 knots after midnight. Rain showers and
chance of thunderstorms late in the evening, then chance of rain
showers after midnight. Waves 1 to 2 feet building to 2 to 4 feet
after midnight.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely in the morning, then chance of rain
showers in the afternoon. 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 in the evening, then slight
chance of rain showers after midnight. Waves 2 to 4 feet
subsiding to 1 to 2 feet after midnight. A small craft advisory
may be needed.
.THURSDAY...Northwest wind 5 to 10 knots becoming south in the
afternoon. Sunny. Waves 1 foot or less.

$$

LSZ121-161015-
Chequamegon Bay-Bayfield to Oak Point WI-
909 PM CDT Tue Jul 15 2025

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

.REST OF TONIGHT...Northeast wind 10 to 15 knots. Gusts up to
25 knots after midnight. Rain showers and chance of thunderstorms
late in the evening, then rain showers likely after midnight.
Chance of rain showers and slight chance of thunderstorms toward
daybreak. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely. 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. Rain showers likely. Waves 2 to 4 feet subsiding to 1 to
2 feet after midnight. A small craft advisory may be needed.
.THURSDAY...North wind 5 to 10 knots becoming east late in the
afternoon. Sunny. Waves 1 foot or less.

$$

LSZ148-161015-
Oak Point to Saxon Harbor WI-
909 PM CDT Tue Jul 15 2025

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

.REST OF TONIGHT...Northeast wind 5 to 10 knots rising to 15 to
20 knots with gusts to around 25 knots after midnight. Rain
showers and chance of thunderstorms late in the evening, then
rain showers likely after midnight. Chance of rain showers and
slight chance of thunderstorms toward daybreak. Waves 1 to 2 feet
building to 2 to 4 feet after midnight.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely. Waves 3 to 5 feet.
.WEDNESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots in the evening. Rain showers likely. Waves 2 to 4 feet
subsiding to 1 to 2 feet after midnight. A small craft advisory
may be needed.
.THURSDAY...North wind 5 to 10 knots becoming east late in the
afternoon. Sunny. Waves 1 to 2 feet.

$$

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

Rothstein