093
FZUS53 KDLH 131109
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
609 AM CDT Mon Jul 13 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.

LSZ140-131600-
Grand Portage to Grand Marais MN-
609 AM CDT Mon Jul 13 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM CDT THIS MORNING
THROUGH LATE TONIGHT...

.TODAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots
increasing to 30 knots. Patchy fog until late afternoon. Waves
4 to 6 feet. Waves occasionally to 7 feet.
.TONIGHT...Southwest wind 15 to 20 knots. Gusts up to 35 knots
decreasing to 25 knots. Partly cloudy. Waves 4 to 6 feet. Waves
occasionally to 8 feet. A gale warning may be needed.
.TUESDAY...West wind 10 to 15 knots. Gusts up to 20 knots early
in the morning then 20 knots late in the afternoon. Sunny. Waves
2 to 4 feet subsiding to 1 to 3 feet in the late morning and
afternoon.
.TUESDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy.
Waves 1 to 2 feet.

$$

LSZ141-131600-
Grand Marais to Taconite Harbor MN-
609 AM CDT Mon Jul 13 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 30 knots.
Patchy fog in the morning. Waves 1 to 3 feet building to 2 to
4 feet late in the afternoon.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 30 knots
decreasing to 20 knots. Partly cloudy. Waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight.
.TUESDAY...West wind 5 to 10 knots. Gusts up to 20 knots early in
the morning. Sunny. Waves 1 to 2 feet.
.TUESDAY NIGHT...Northwest wind 5 knots. Partly cloudy. Waves
1 foot or less.

$$

LSZ142-131600-
Taconite Harbor to Silver Bay Harbor MN-
609 AM CDT Mon Jul 13 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Patchy fog in the
morning. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. Mostly
clear. Waves 1 to 2 feet.
.TUESDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots
early in the morning then 20 knots early in the afternoon. Sunny.
Waves 1 to 2 feet.
.TUESDAY NIGHT...Northwest wind 5 knots. Partly cloudy. Waves
1 foot or less.

$$

LSZ143-131600-
Silver Bay Harbor to Two Harbors MN-
609 AM CDT Mon Jul 13 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Patchy fog in the
morning. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. Mostly
clear. Waves 1 to 2 feet.
.TUESDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in
the late morning and early afternoon. Sunny. Waves 1 to 2 feet.
.TUESDAY NIGHT...Northwest wind 5 knots until early morning
becoming variable 10 knots or less. Partly cloudy. Waves 1 foot
or less.

$$

LSZ144-131600-
Two Harbors to Duluth MN-
609 AM CDT Mon Jul 13 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Patchy fog early in the
morning. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. Mostly
clear. Waves 1 to 2 feet.
.TUESDAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TUESDAY NIGHT...Northwest wind 5 knots becoming north early in
the morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ145-131600-
Duluth MN to Port Wing WI-
609 AM CDT Mon Jul 13 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Sunny. Waves 1 to
2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late evening and overnight. Mostly
clear. Waves 1 to 2 feet.
.TUESDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
early in the morning. Sunny. Waves 1 to 2 feet.
.TUESDAY NIGHT...West wind 5 knots becoming north in the late
evening and overnight. Partly cloudy. Waves 1 foot or less.

$$

LSZ146-131600-
Port Wing to Sand Island WI-
609 AM CDT Mon Jul 13 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...

.TODAY...Southwest wind 10 knots with gusts to around 20 knots
rising to 10 to 15 knots with gusts to around 25 knots in the
late morning and afternoon. Sunny. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots after midnight. Mostly clear. Waves 1 to
2 feet.
.TUESDAY...Southwest wind 10 to 15 knots easing to 5 to 10 knots
in the late morning and afternoon. Gusts up to 20 knots. Sunny.
Waves 1 to 2 feet.
.TUESDAY NIGHT...West wind 5 knots becoming north in the late
evening and early morning, then becoming variable 10 knots or
less early in the morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ147-131600-
Sand Island to Bayfield WI-
609 AM CDT Mon Jul 13 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH THIS EVENING...

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Patchy fog early in the
morning. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
25 knots. Mostly clear. Waves 1 to 2 feet.
.TUESDAY...West wind 10 to 15 knots with gusts to around
20 knots. Sunny. Waves 1 to 2 feet.
.TUESDAY NIGHT...Northwest wind 5 knots becoming north after
midnight, then becoming variable 10 knots or less early in the
morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ150-131600-
Outer Apostle Islands Beyond 5 NM from Mainland-
609 AM CDT Mon Jul 13 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON
THROUGH LATE TONIGHT...

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the afternoon. Widespread dense fog
early in the morning, then patchy fog late in the morning. Waves
1 to 3 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 30 knots
decreasing to 25 knots in the late evening and overnight. Mostly
clear. Waves 1 to 3 feet.
.TUESDAY...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the late morning and afternoon. Sunny.
Waves 1 to 2 feet.
.TUESDAY NIGHT...West wind 5 to 10 knots becoming north in the
late evening and overnight. Partly cloudy. Waves 1 foot or less.

$$

LSZ121-131600-
Chequamegon Bay-Bayfield to Oak Point WI-
609 AM CDT Mon Jul 13 2026

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Sunny. Waves 1 foot or less.
.TONIGHT...Southwest wind 10 to 15 knots easing to 5 to 10 knots
after midnight. Gusts up to 20 knots. Mostly clear. Waves 1 foot
or less.
.TUESDAY...West wind 5 to 10 knots. Gusts up to 20 knots in the
morning. Sunny. Waves 1 foot or less.
.TUESDAY NIGHT...Northwest wind 5 knots becoming north after
midnight, then becoming variable 10 knots or less early in the
morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ148-131600-
Oak Point to Saxon Harbor WI-
609 AM CDT Mon Jul 13 2026

.TODAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots late
in the afternoon. Sunny. Waves 1 foot or less.
.TONIGHT...Southwest wind 10 to 15 knots easing to 5 to 10 knots
in the late evening and overnight. Gusts up to 20 knots. Mostly
clear. Waves 1 foot or less.
.TUESDAY...West wind 5 to 10 knots with gusts to around 20 knots
becoming west 5 to 10 knots late in the afternoon. Sunny. Waves
1 foot or less.
.TUESDAY NIGHT...Northwest wind 5 knots becoming north after
midnight, then becoming variable 10 knots or less early in the
morning. Partly cloudy. Waves 1 foot or less.

$$

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

WFO DLH