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FZUS53 KDLH 061221
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
621 AM CST Sat Dec 6 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.

LSZ140-061700-
Grand Portage to Grand Marais MN-
621 AM CST Sat Dec 6 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...

.TODAY...Northwest wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots in the afternoon. Sunny. Waves
1 to 2 feet.
.TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots in
the late evening and overnight. Mostly clear. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots in
the morning. Sunny. Waves 1 to 2 feet.
.SUNDAY NIGHT...Northwest wind 5 to 10 knots becoming west early
in the morning. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.

$$

LSZ141-061700-
Grand Marais to Taconite Harbor MN-
621 AM CST Sat Dec 6 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...

.TODAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in
the morning. Sunny. Waves 1 foot or less.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
after midnight. Mostly clear. Waves 1 foot or less.
.SUNDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in
the morning. Sunny. Waves 1 foot or less.
.SUNDAY NIGHT...Northwest wind 5 knots becoming west after
midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.

$$

LSZ142-061700-
Taconite Harbor to Silver Bay Harbor MN-
621 AM CST Sat Dec 6 2025

.TODAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in
the morning. Mostly sunny. Waves 1 foot or less.
.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
after midnight. Partly cloudy. Waves 1 foot or less.
.SUNDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in
the morning. Sunny. Waves 1 foot or less.
.SUNDAY NIGHT...Northwest wind 5 knots becoming southwest after
midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.

$$

LSZ143-061700-
Silver Bay Harbor to Two Harbors MN-
621 AM CST Sat Dec 6 2025

.TODAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves 1 foot
or less.
.TONIGHT...North wind 5 knots. Mostly cloudy in the evening then
clearing. Waves 1 foot or less.
.SUNDAY...Northwest wind 5 knots. Sunny. Waves 1 foot or less.
.SUNDAY NIGHT...Northwest wind 5 knots becoming southwest after
midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.

$$

LSZ144-061700-
Two Harbors to Duluth MN-
621 AM CST Sat Dec 6 2025

.TODAY...Northwest wind 5 to 10 knots. Partly sunny. Waves 1 foot
or less.
.TONIGHT...North wind 5 to 10 knots. Mostly cloudy in the evening
then becoming partly cloudy. Waves 1 foot or less.
.SUNDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.SUNDAY NIGHT...West wind 5 knots becoming southwest after
midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.

$$

LSZ145-061700-
Duluth MN to Port Wing WI-
621 AM CST Sat Dec 6 2025

.TODAY...Northwest wind 5 to 10 knots. Partly sunny. Waves 1 to
2 feet.
.TONIGHT...North wind 5 to 10 knots. Mostly cloudy in the evening
then becoming partly cloudy. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.
.SUNDAY NIGHT...West wind 5 knots becoming southwest in the late
evening and overnight. Partly cloudy in the evening then becoming
mostly cloudy. Waves 1 foot or less.

$$

LSZ146-061700-
Port Wing to Sand Island WI-
621 AM CST Sat Dec 6 2025

.TODAY...Northwest wind 10 to 15 knots easing to 5 knots late in
the afternoon. Partly sunny. Waves 1 to 3 feet.
.TONIGHT...North wind 5 to 10 knots. Mostly cloudy. Waves 1 to
2 feet.
.SUNDAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves 1 to
2 feet.
.SUNDAY NIGHT...West wind 5 knots becoming southwest early in the
morning. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.

$$

LSZ147-061700-
Sand Island to Bayfield WI-
621 AM CST Sat Dec 6 2025

.TODAY...Northwest wind 10 to 15 knots easing to 5 knots late in
the afternoon. Mostly cloudy. Waves 1 to 3 feet subsiding to 1 to
2 feet in the late morning and afternoon.
.TONIGHT...Northwest wind 5 to 10 knots. Slight chance of snow
showers after midnight. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves 1 to
2 feet.
.SUNDAY NIGHT...West wind 5 knots becoming southwest after
midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.

$$

LSZ150-061700-
Outer Apostle Islands Beyond 5 NM from Mainland-
621 AM CST Sat Dec 6 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST THIS MORNING...

.TODAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots
early in the morning. Slight chance of light freezing rain early
in the morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the
afternoon.
.TONIGHT...Northwest wind 5 to 10 knots. Slight chance of snow
showers after midnight. Waves 1 to 3 feet.
.SUNDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots in
the morning. Partly sunny. Waves 1 to 3 feet.
.SUNDAY NIGHT...West wind 5 knots becoming southwest after
midnight. Mostly cloudy. Waves 1 foot or less.

$$

LSZ121-061700-
Chequamegon Bay-Bayfield to Oak Point WI-
621 AM CST Sat Dec 6 2025

.TODAY...Northwest wind 5 to 10 knots. Slight chance of snow
showers early in the morning. Waves 1 foot or less.
.TONIGHT...Northwest wind 5 to 10 knots. Slight chance of snow
showers. Waves 1 foot or less.
.SUNDAY...Northwest wind 5 to 10 knots. Partly sunny. Waves
1 foot or less.
.SUNDAY NIGHT...West wind 5 knots becoming southwest after
midnight. Partly cloudy in the evening then becoming mostly
cloudy. Waves 1 foot or less.

$$

LSZ148-061700-
Oak Point to Saxon Harbor WI-
621 AM CST Sat Dec 6 2025

.TODAY...Northwest wind 5 to 10 knots. Slight chance of snow
showers until late afternoon. Waves 1 to 3 feet.
.TONIGHT...Northwest wind 5 to 10 knots. Chance of snow showers
through the night. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 5 to 10 knots. Slight chance of snow
showers. Waves 1 to 2 feet.
.SUNDAY NIGHT...West wind 5 knots becoming southwest after
midnight. Mostly cloudy. Waves 1 foot or less.

$$

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

WFO DLH