809
FZUS53 KDLH 211743
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1143 AM CST Fri Nov 21 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.

LSZ140-212315-
Grand Portage to Grand Marais MN-
1143 AM CST Fri Nov 21 2025

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

.REST OF TODAY...Northwest wind 10 to 15 knots. Gusts up to
20 knots late in the morning. Sunny. Waves 1 to 2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming southwest early
in the morning. Slight chance of snow after midnight. Waves
1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots late in the
afternoon. Chance of rain and snow in the morning, then slight
chance of rain in the afternoon. Waves 1 to 2 feet building to
1 to 3 feet in the afternoon.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots in the late evening and early morning,
then decreasing to 20 knots early in the morning. Partly cloudy.
Waves 1 to 3 feet.

$$

LSZ141-212315-
Grand Marais to Taconite Harbor MN-
1143 AM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming southwest early
in the morning. Mostly clear in the evening then becoming mostly
cloudy. Waves 1 foot or less.
.SATURDAY...South wind 5 to 10 knots becoming west with gusts to
around 20 knots in the afternoon. Chance of rain, snow and light
freezing rain in the morning. Waves 1 to 2 feet.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots. Gusts up to
20 knots increasing to 25 knots in the late evening and early
morning, then decreasing to 20 knots early in the morning. Partly
cloudy. Waves 1 to 2 feet.

$$

LSZ142-212315-
Taconite Harbor to Silver Bay Harbor MN-
1143 AM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...Northwest wind 5 knots becoming south early in the
morning. Mostly clear in the evening then becoming mostly cloudy.
Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots becoming west with gusts
to around 20 knots in the afternoon. Slight chance of rain and
snow in the morning. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 5 to 10 knots with gusts to around
20 knots. Partly cloudy. Waves 1 foot or less.

$$

LSZ143-212315-
Silver Bay Harbor to Two Harbors MN-
1143 AM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...Northwest wind 5 knots becoming southwest after
midnight. Mostly clear in the evening then becoming mostly
cloudy. Waves 1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Mostly cloudy in the morning then clearing. Waves 1 to
2 feet.
.SATURDAY NIGHT...West wind 5 to 10 knots. Gusts up to 20 knots
until early morning. Mostly clear. Waves 1 foot or less.

$$

LSZ144-212315-
Two Harbors to Duluth MN-
1143 AM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves
1 foot or less.
.TONIGHT...Northwest wind 5 knots becoming south after midnight.
Mostly clear in the evening then becoming mostly cloudy. Waves
1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Mostly cloudy in the morning then clearing. Waves 1 to
2 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
in the evening. Mostly clear. Waves 1 foot or less.

$$

LSZ145-212315-
Duluth MN to Port Wing WI-
1143 AM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...West wind 5 to 10 knots becoming south in the late
evening and overnight. Mostly clear in the evening then becoming
mostly cloudy. Waves 1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Mostly cloudy in the morning then becoming mostly
sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
in the evening. Mostly clear. Waves 1 to 2 feet.

$$

LSZ146-212315-
Port Wing to Sand Island WI-
1143 AM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to
2 feet.
.TONIGHT...Northwest wind 5 to 10 knots becoming south after
midnight. Mostly clear in the evening then becoming mostly
cloudy. Waves 1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Mostly cloudy in the morning then becoming mostly
sunny. Waves 1 to 3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ147-212315-
Sand Island to Bayfield WI-
1143 AM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 to
3 feet.
.TONIGHT...West wind 5 to 10 knots becoming south after midnight.
Mostly clear in the evening then becoming mostly cloudy. Waves
1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Mostly cloudy in the morning then becoming mostly
sunny. Waves 1 to 3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ150-212315-
Outer Apostle Islands Beyond 5 NM from Mainland-
1143 AM CST Fri Nov 21 2025

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

.REST OF TODAY...Northwest wind 10 to 15 knots. Mostly sunny.
Waves 2 to 4 feet subsiding to 1 to 2 feet late.
.TONIGHT...Northwest wind 5 to 10 knots becoming southwest after
midnight. Mostly clear in the evening then becoming mostly
cloudy. Waves 1 to 2 feet.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Cloudy in the morning then becoming mostly sunny.
Waves 1 to 3 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots late in the evening, then decreasing to
20 knots after midnight. Partly cloudy. Waves 1 to 3 feet.

$$

LSZ121-212315-
Chequamegon Bay-Bayfield to Oak Point WI-
1143 AM CST Fri Nov 21 2025

.REST OF TODAY...West wind 5 to 10 knots. Sunny. Waves 1 foot or
less.
.TONIGHT...West wind 5 knots becoming south after midnight.
Mostly clear in the evening then becoming mostly cloudy. Waves
1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots late in the
afternoon. Mostly cloudy in the morning then becoming mostly
sunny. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 5 to 10 knots. Gusts up to 20 knots
in the evening. Mostly clear. Waves 1 foot or less.

$$

LSZ148-212315-
Oak Point to Saxon Harbor WI-
1143 AM CST Fri Nov 21 2025

.REST OF TODAY...Northwest wind 5 to 10 knots. Mostly sunny.
Waves 1 to 2 feet.
.TONIGHT...West wind 5 to 10 knots becoming south after midnight.
Mostly clear in the evening then becoming mostly cloudy. Waves
1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots. Mostly cloudy in the morning then becoming mostly
sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Partly cloudy. Waves 1 to 2 feet.

$$

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

JDS