Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 160146
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
846 PM CDT Tue Sep 15 2026

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.

LSZ140-161000-
Grand Portage to Grand Marais MN-
846 PM CDT Tue Sep 15 2026

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

.REST OF TONIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
in the late evening and overnight. Mostly clear. Waves 1 to
3 feet subsiding to 1 to 2 feet after midnight.
.WEDNESDAY...Northwest wind 5 to 10 knots becoming south in the
afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...Southeast wind 5 knots becoming west late in
the evening, then becoming south after midnight becoming west
early in the morning. Chance of rain showers in the evening.
Slight chance of rain showers after midnight. Waves 1 foot or
less.
.THURSDAY...West wind 5 to 10 knots. Mostly sunny. Waves 1 foot
or less.

$$

LSZ141-161000-
Grand Marais to Taconite Harbor MN-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...Southwest wind 5 to 10 knots becoming
northwest after midnight. Mostly clear. Waves 1 to 2 feet.
.WEDNESDAY...Northwest wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming southeast 5 knots in the
afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 5 knots early in the evening
becoming variable 10 knots or less. Chance of rain showers in the
evening. Slight chance of rain showers after midnight. Waves
1 foot or less.
.THURSDAY...Northwest wind 5 knots becoming west in the
afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ142-161000-
Taconite Harbor to Silver Bay Harbor MN-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...Southwest wind 5 knots becoming northwest
after midnight. Mostly clear. Waves 1 foot or less.
.WEDNESDAY...North wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming southeast 5 knots in the
afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...Northeast wind 5 knots early in the evening
becoming variable 10 knots or less. Chance of rain showers in the
evening. Slight chance of rain showers after midnight. Waves
1 foot or less.
.THURSDAY...Northwest wind 5 knots becoming west in the
afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ143-161000-
Silver Bay Harbor to Two Harbors MN-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...Southwest wind 5 knots becoming northwest
after midnight. Mostly clear. Waves 1 foot or less.
.WEDNESDAY...North wind 5 knots becoming east in the afternoon.
Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...Northeast wind 5 to 10 knots until early
morning becoming variable 10 knots or less. Chance of rain
showers in the evening. Slight chance of rain showers after
midnight. Waves 1 foot or less.
.THURSDAY...Northwest wind 5 knots becoming southwest in the
afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ144-161000-
Two Harbors to Duluth MN-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...West wind 5 knots becoming northwest after
midnight. Mostly clear. Waves 1 foot or less.
.WEDNESDAY...North wind 5 knots becoming east in the late morning
and afternoon. Patchy fog in the morning. Waves 1 foot or less.
.WEDNESDAY NIGHT...Northeast wind 5 to 10 knots. Chance of rain
showers. Waves 1 foot or less.
.THURSDAY...Northwest wind 5 knots. Mostly sunny. Waves 1 foot or
less.

$$

LSZ145-161000-
Duluth MN to Port Wing WI-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...West wind 5 to 10 knots becoming northwest
after midnight. Mostly clear. Waves 1 foot or less.
.WEDNESDAY...North wind 5 knots becoming northeast in the late
morning and afternoon. Patchy fog in the morning. Waves 1 foot or
less.
.WEDNESDAY NIGHT...East wind 5 to 10 knots easing to 5 knots
early in the morning. Chance of rain showers in the evening.
Slight chance of rain showers after midnight. Waves 1 foot or
less.
.THURSDAY...Southwest wind 5 knots becoming north late in the
afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ146-161000-
Port Wing to Sand Island WI-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...West wind 5 to 10 knots becoming northwest
after midnight. Mostly clear. Waves 1 to 2 feet.
.WEDNESDAY...North wind 5 knots becoming northeast in the late
morning and afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 5 to 10 knots until early morning
becoming variable 10 knots or less. Chance of rain showers in the
evening. Slight chance of rain showers after midnight. Waves
1 foot or less.
.THURSDAY...West wind 5 knots becoming northwest in the late
morning and afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ147-161000-
Sand Island to Bayfield WI-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...West wind 5 to 10 knots becoming northwest
after midnight. Mostly clear. Waves 1 to 2 feet.
.WEDNESDAY...North wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming east 5 knots in the
afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 5 knots becoming southeast early in
the morning. Chance of rain showers. Waves 1 foot or less.
.THURSDAY...Northwest wind 5 knots. Mostly sunny. Waves 1 foot or
less.

$$

LSZ150-161000-
Outer Apostle Islands Beyond 5 NM from Mainland-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...West wind 5 to 10 knots becoming northwest
after midnight. Mostly clear. Waves 1 to 2 feet.
.WEDNESDAY...North wind 5 knots becoming east in the afternoon.
Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south early
in the morning. Chance of rain showers in the evening. Slight
chance of rain showers after midnight. Waves 1 foot or less.
.THURSDAY...West wind 5 knots. Mostly sunny. Waves 1 foot or
less.

$$

LSZ121-161000-
Chequamegon Bay-Bayfield to Oak Point WI-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...West wind 5 knots becoming northwest toward
daybreak. Mostly clear. Waves 1 foot or less.
.WEDNESDAY...Northwest wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming east 5 knots in the
afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...Northeast wind 5 knots until early morning
becoming variable 10 knots or less. Chance of rain showers. Waves
1 foot or less.
.THURSDAY...West wind 5 knots becoming north in the afternoon.
Mostly sunny. Waves 1 foot or less.

$$

LSZ148-161000-
Oak Point to Saxon Harbor WI-
846 PM CDT Tue Sep 15 2026

.REST OF TONIGHT...Southwest wind 5 knots becoming northwest
toward daybreak. Mostly clear. Waves 1 foot or less.
.WEDNESDAY...Northwest wind 5 knots becoming northeast late in
the afternoon. Sunny. Waves 1 foot or less.
.WEDNESDAY NIGHT...East wind 5 to 10 knots becoming south early
in the morning. Chance of rain showers. Waves 1 foot or less.
.THURSDAY...Southwest wind 5 knots becoming north in the
afternoon. Mostly sunny. Waves 1 foot or less.

$$

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

WFO DLH