045
FZUS53 KDLH 210751
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
151 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.

LSZ140-211700-
Grand Portage to Grand Marais MN-
151 AM CST Fri Nov 21 2025

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

.TODAY...Northwest wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots late in the afternoon. Mostly
sunny. Waves 1 to 3 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. Gusts up to 20 knots
in the late morning and afternoon. Chance of rain and snow in the
morning, then slight chance of rain in the afternoon. Waves 1 to
3 feet.
.SATURDAY NIGHT...West wind 5 to 10 knots with gusts to around
20 knots. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ141-211700-
Grand Marais to Taconite Harbor MN-
151 AM CST Fri Nov 21 2025

.TODAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots in
the morning. 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...Southwest wind 5 to 10 knots becoming west late in
the afternoon. Chance of rain, snow and light freezing rain in
the morning. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 5 to 10 knots. Gusts up to 20 knots
until early morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ142-211700-
Taconite Harbor to Silver Bay Harbor MN-
151 AM CST Fri Nov 21 2025

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots late in the afternoon. Sunny. Waves
1 to 2 feet.
.TONIGHT...Northwest wind 5 knots becoming southwest 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 late in
the afternoon. Slight chance of rain and snow in the morning.
Waves 1 foot or less.
.SATURDAY NIGHT...West wind 5 to 10 knots. Gusts up to 20 knots
until early morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ143-211700-
Silver Bay Harbor to Two Harbors MN-
151 AM CST Fri Nov 21 2025

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots late in the afternoon. Sunny. Waves
1 to 2 feet.
.TONIGHT...Northwest wind 5 knots becoming southwest early in the
morning. Mostly clear in the evening then becoming mostly cloudy.
Waves 1 foot or less.
.SATURDAY...Southwest wind 10 to 15 knots becoming west 5 to
10 knots late in the afternoon. Mostly cloudy in the morning then
clearing. 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.

$$

LSZ144-211700-
Two Harbors to Duluth MN-
151 AM CST Fri Nov 21 2025

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots late in the afternoon. Sunny. Waves
1 to 2 feet.
.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 becoming west 5 to
10 knots late in the afternoon. Mostly cloudy in the morning then
clearing. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ145-211700-
Duluth MN to Port Wing WI-
151 AM CST Fri Nov 21 2025

.TODAY...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots late in the afternoon. Sunny. Waves
1 to 3 feet.
.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 late in the
afternoon. Mostly cloudy in the morning then becoming mostly
sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...West wind 5 to 10 knots. Mostly clear. Waves
1 to 2 feet.

$$

LSZ146-211700-
Port Wing to Sand Island WI-
151 AM CST Fri Nov 21 2025

.TODAY...Northwest wind 15 to 20 knots easing to 5 to 10 knots in
the afternoon. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet
in the afternoon.
.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 late 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
until early morning. Partly cloudy. Waves 1 to 2 feet.

$$

LSZ147-211700-
Sand Island to Bayfield WI-
151 AM CST Fri Nov 21 2025

.TODAY...Northwest wind 15 to 20 knots easing to 5 to 10 knots in
the afternoon. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet
in the afternoon.
.TONIGHT...West wind 5 to 10 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 becoming mostly
sunny. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ150-211700-
Outer Apostle Islands Beyond 5 NM from Mainland-
151 AM CST Fri Nov 21 2025

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

.TODAY...Northwest wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots late in the afternoon. Mostly
sunny. Waves 3 to 5 feet subsiding to 1 to 2 feet late in the
afternoon.
.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 late in the
afternoon. Cloudy in the morning then becoming mostly sunny.
Waves 1 foot or less.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
until early morning. Partly cloudy. Waves 1 foot or less.

$$

LSZ121-211700-
Chequamegon Bay-Bayfield to Oak Point WI-
151 AM CST Fri Nov 21 2025

.TODAY...Northwest wind 10 to 15 knots. Sunny. Waves 1 foot or
less.
.TONIGHT...West 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 with gusts to around
20 knots becoming west 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. Mostly clear. Waves
1 foot or less.

$$

LSZ148-211700-
Oak Point to Saxon Harbor WI-
151 AM CST Fri Nov 21 2025

.TODAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots in
the morning. Mostly sunny. Waves 1 to 2 feet.
.TONIGHT...West wind 5 to 10 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 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. Partly cloudy. Waves
1 foot or less.

$$

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

WFO DLH