344
FZUS53 KDLH 231509
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
909 AM CST Sun Feb 23 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.

LSZ140-141-232315-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
909 AM CST Sun Feb 23 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.REST OF TODAY...Southeast wind 5 to 10 knots becoming south
late. Scattered sprinkles and flurries late. Waves 1 to 2 feet.
.TONIGHT...South wind 5 to 10 knots with gusts to around 20 knots
becoming southwest 15 to 20 knots with gusts to around 30 knots
in the late evening and overnight. Numerous rain showers and
isolated snow showers in the evening. Chance of light freezing
rain through the night. Scattered rain showers and flurries after
midnight. Waves 1 to 2 feet building to 4 to 6 feet after
midnight. Waves occasionally to 7 feet.
.MONDAY...West wind 15 to 20 knots. Gusts up to 30 knots
decreasing to 20 knots. Mostly sunny. Waves 4 to 6 feet subsiding
to 1 to 3 feet late in the afternoon. Waves occasionally to
7 feet.
.MONDAY NIGHT...West wind 5 to 10 knots with gusts to around
20 knots becoming northwest early in the morning. Mostly cloudy.
Waves 1 to 2 feet.

Note...Wave height forecasts are for ice free areas.

$$

LSZ142-232315-
Taconite Harbor to Silver Bay Harbor MN-
909 AM CST Sun Feb 23 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.REST OF TODAY...East wind 5 knots becoming southeast late.
Scattered sprinkles and flurries late. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
25 knots rising to 15 to 20 knots with gusts to around 30 knots
after midnight. Numerous rain showers with possible snow showers
and freezing rain in the evening, then scattered rain showers
after midnight. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.MONDAY...West wind 10 to 15 knots easing to 10 knots late in the
afternoon. Gusts up to 30 knots decreasing to 20 knots. Mostly
sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...West wind 5 to 10 knots. Gusts up to 20 knots
early in the evening. Mostly cloudy. Waves 1 foot or less.

Note...Wave height forecasts are for ice free areas.

$$

LSZ143-232315-
Silver Bay Harbor to Two Harbors MN-
909 AM CST Sun Feb 23 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.REST OF TODAY...Northeast wind 5 knots becoming southeast late.
Scattered sprinkles and flurries late. Waves 1 foot or less.
.TONIGHT...Southwest wind 15 to 20 knots with gusts to around
25 knots. Chance of light freezing rain in the evening. Scattered
rain showers through the night. Waves 1 to 2 feet building to
2 to 4 feet after midnight.
.MONDAY...West wind 10 to 15 knots. Gusts up to 30 knots
decreasing to 20 knots. Mostly sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.

Note...Wave height forecasts are for ice free areas.

$$

LSZ144-145-232315-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
909 AM CST Sun Feb 23 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.REST OF TODAY...South wind 5 knots. Patchy very light freezing
drizzle late in the morning. Waves 1 foot or less.
.TONIGHT...Southwest wind 15 to 20 knots with gusts to around
25 knots. Scattered rain showers in the evening, then scattered
sprinkles after midnight. Waves 1 to 2 feet building to 1 to
3 feet after midnight.
.MONDAY...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots late in the afternoon. Mostly sunny. Waves
2 to 4 feet subsiding to 1 to 2 feet late in the afternoon.
.MONDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.

Note...Wave height forecasts are for ice free areas.

$$

LSZ146-232315-
Port Wing to Sand Island WI-
909 AM CST Sun Feb 23 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.REST OF TODAY...North wind 5 knots becoming southwest late.
Scattered flurries, patchy drizzle and very light freezing
drizzle late in the morning. Waves 1 foot or less.
.TONIGHT...South wind 5 to 10 knots with gusts to around 20 knots
becoming southwest 15 to 20 knots with gusts to around 30 knots
in the late evening and overnight. Scattered rain showers through
the night. Waves 1 to 2 feet building to 2 to 4 feet after
midnight.
.MONDAY...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots late in the afternoon. Mostly sunny. Waves
2 to 4 feet subsiding to 1 to 3 feet late in the afternoon.
.MONDAY NIGHT...West wind 10 to 15 knots easing to 5 to 10 knots
in the late evening and overnight. Mostly cloudy. Waves 1 to
2 feet.

Note...Wave height forecasts are for ice free areas.

$$

LSZ150-232315-
Outer Apostle Islands Beyond 5 NM from Mainland-
909 AM CST Sun Feb 23 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.REST OF TODAY...South wind 5 knots. Scattered flurries, patchy
drizzle and very light freezing drizzle late in the morning.
Waves 1 foot or less.
.TONIGHT...Southwest wind 20 to 25 knots with gusts to around
30 knots. Scattered rain showers through the night. Waves 1 to
3 feet building to 3 to 5 feet after midnight. Waves occasionally
to 7 feet.
.MONDAY...West wind 20 to 25 knots with gusts to around 30 knots
easing to 10 to 15 knots with gusts to around 20 knots late in
the afternoon. Mostly sunny. Waves 4 to 6 feet. Waves
occasionally to 7 feet.
.MONDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
early in the evening. Mostly cloudy. Waves 1 to 3 feet.

Note...Wave height forecasts are for ice free areas.

$$

LSZ148-232315-
Oak Point to Saxon Harbor WI-
909 AM CST Sun Feb 23 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
MONDAY AFTERNOON...

.REST OF TODAY...South wind 5 knots. Scattered flurries and
patchy very light freezing drizzle late in the morning. Waves
1 foot or less.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
25 knots becoming 5 to 15 knots with gusts to around 25 knots
early in the morning. Scattered rain showers in the evening, then
scattered sprinkles after midnight. Waves 1 foot or less.
.MONDAY...West wind 10 to 15 knots easing to 10 knots late in the
afternoon. Gusts up to 25 knots decreasing to 20 knots late in
the afternoon. Mostly sunny. Waves 1 foot or less.
.MONDAY NIGHT...West wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.

Note...Wave height forecasts are for ice free areas.

$$

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

Rothstein