635
FZUS53 KDLH 131503
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
903 AM CST Thu Nov 13 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.

LSZ140-132300-
Grand Portage to Grand Marais MN-
903 AM CST Thu Nov 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.REST OF TODAY...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the afternoon. Sunny. Waves 1 to
3 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming east after
midnight. Partly cloudy. Waves 1 to 2 feet.
.FRIDAY...Southeast wind 10 to 15 knots. Mostly sunny. Waves 1 to
3 feet.
.FRIDAY NIGHT...South wind 5 to 10 knots becoming southwest after
midnight. Slight chance of rain after midnight. Waves 1 to
3 feet.

$$

LSZ141-132300-
Grand Marais to Taconite Harbor MN-
903 AM CST Thu Nov 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.REST OF TODAY...West wind 10 to 15 knots. Gusts up to 20 knots
in the late morning and early afternoon. Sunny. Waves 1 to
2 feet.
.TONIGHT...Northwest wind 5 knots becoming east after midnight.
Partly cloudy. Waves 1 to 2 feet.
.FRIDAY...Southeast wind 5 to 10 knots. Mostly sunny. Waves 1 to
2 feet.
.FRIDAY NIGHT...Southeast wind 5 to 10 knots becoming west early
in the morning. Slight chance of rain after midnight. Waves
1 foot or less.

$$

LSZ142-132300-
Taconite Harbor to Silver Bay Harbor MN-
903 AM CST Thu Nov 13 2025

.REST OF TODAY...West wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...Northwest wind 5 knots becoming northeast after
midnight. Mostly clear. Waves 1 foot or less.
.FRIDAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 to
2 feet.
.FRIDAY NIGHT...Southeast wind 5 knots becoming southwest in the
late evening and early morning, then becoming west early in the
morning. Slight chance of rain after midnight. Waves 1 foot or
less.

$$

LSZ143-132300-
Silver Bay Harbor to Two Harbors MN-
903 AM CST Thu Nov 13 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...West wind 5 knots becoming northeast after midnight.
Mostly clear. Waves 1 foot or less.
.FRIDAY...East wind 5 to 10 knots. Mostly sunny. Waves 1 foot or
less.
.FRIDAY NIGHT...Southeast wind 5 knots becoming southwest in the
late evening and early morning, then becoming west early in the
morning. Slight chance of rain after midnight. Waves 1 foot or
less.

$$

LSZ144-132300-
Two Harbors to Duluth MN-
903 AM CST Thu Nov 13 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...Southwest wind 5 knots becoming south late in the
evening, then becoming east after midnight. Mostly clear. Waves
1 foot or less.
.FRIDAY...Southeast wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.FRIDAY NIGHT...Southeast wind 5 to 10 knots becoming west early
in the morning. Slight chance of rain after midnight. Waves
1 foot or less.

$$

LSZ145-132300-
Duluth MN to Port Wing WI-
903 AM CST Thu Nov 13 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...South wind 5 knots becoming southeast after midnight.
Mostly clear. Waves 1 foot or less.
.FRIDAY...Southeast wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.FRIDAY NIGHT...South wind 5 to 10 knots becoming west early in
the morning. Slight chance of rain after midnight. Waves 1 foot
or less.

$$

LSZ146-132300-
Port Wing to Sand Island WI-
903 AM CST Thu Nov 13 2025

.REST OF TODAY...Southwest wind 10 to 15 knots. Gusts up to
20 knots in the late morning and early afternoon. Sunny. Waves
1 to 3 feet.
.TONIGHT...South wind 5 knots becoming southeast after midnight.
Mostly clear. Waves 1 foot or less.
.FRIDAY...Southeast wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.FRIDAY NIGHT...South wind 5 knots becoming southwest after
midnight. Slight chance of rain after midnight. Waves 1 foot or
less.

$$

LSZ147-132300-
Sand Island to Bayfield WI-
903 AM CST Thu Nov 13 2025

.REST OF TODAY...West wind 10 to 15 knots. Gusts up to 20 knots
in the late morning and early afternoon. Sunny. Waves 1 to
3 feet.
.TONIGHT...Southwest wind 5 knots becoming southeast after
midnight. Mostly clear. Waves 1 foot or less.
.FRIDAY...Southeast wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.FRIDAY NIGHT...South wind 5 to 10 knots becoming southwest after
midnight. Slight chance of rain after midnight. Waves 1 foot or
less.

$$

LSZ150-132300-
Outer Apostle Islands Beyond 5 NM from Mainland-
903 AM CST Thu Nov 13 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.REST OF TODAY...West wind 10 to 15 knots. Gusts up to 20 knots
in the late morning and early afternoon. Sunny. Waves 2 to
4 feet.
.TONIGHT...Southwest wind 5 knots becoming southeast after
midnight. Partly cloudy. Waves 1 to 2 feet.
.FRIDAY...Southeast wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.
.FRIDAY NIGHT...Southwest wind 5 to 10 knots becoming west early
in the morning. Slight chance of rain after midnight. Waves 1 to
2 feet.

$$

LSZ121-132300-
Chequamegon Bay-Bayfield to Oak Point WI-
903 AM CST Thu Nov 13 2025

.REST OF TODAY...West wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.TONIGHT...Southwest wind 5 knots becoming south after midnight.
Mostly clear. Waves 1 foot or less.
.FRIDAY...South wind 5 to 10 knots. Sunny. Waves 1 foot or less.
.FRIDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 foot or less.

$$

LSZ148-132300-
Oak Point to Saxon Harbor WI-
903 AM CST Thu Nov 13 2025

.REST OF TODAY...West wind 10 to 15 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...Southwest wind 5 knots becoming south after midnight.
Mostly clear. Waves 1 foot or less.
.FRIDAY...South wind 5 to 10 knots. Gusts up to 20 knots late in
the afternoon. Sunny. Waves 1 foot or less.
.FRIDAY NIGHT...Southwest wind 5 to 10 knots with gusts to around
20 knots becoming southwest 5 to 10 knots early in the morning.
Mostly cloudy. Waves 1 foot or less.

$$

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

WFO DLH