596
FZUS53 KDLH 231531
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
931 AM CST Sun Nov 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.

LSZ140-232300-
Grand Portage to Grand Marais MN-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...West wind 5 to 10 knots becoming southwest late.
Partly sunny. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots
after midnight. Mostly cloudy. Waves 1 to 2 feet building to 1 to
3 feet early in the morning.
.MONDAY...West wind 5 to 10 knots becoming northwest late in the
afternoon. Mostly sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...Northeast wind 5 to 10 knots. Slight chance of
rain after midnight. Waves 1 to 2 feet.

$$

LSZ141-232300-
Grand Marais to Taconite Harbor MN-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 to 2 feet.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves
1 to 2 feet.
.MONDAY...West wind 5 to 10 knots becoming northwest late in the
afternoon. Mostly sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northeast wind 5 to 10 knots. Slight chance of
rain after midnight. Waves 1 foot or less.

$$

LSZ142-232300-
Taconite Harbor to Silver Bay Harbor MN-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 to 2 feet.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves
1 to 2 feet.
.MONDAY...Southwest wind 5 knots becoming west late in the
afternoon. Mostly sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...North wind 5 knots becoming northeast after
midnight. Slight chance of rain after midnight. Waves 1 foot or
less.

$$

LSZ143-232300-
Silver Bay Harbor to Two Harbors MN-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves
1 to 2 feet.
.MONDAY...West wind 5 to 10 knots. Partly sunny. Waves 1 to
2 feet.
.MONDAY NIGHT...Northeast wind 5 to 10 knots. Slight chance of
rain in the evening, then chance of rain after midnight. Waves
1 foot or less.

$$

LSZ144-232300-
Two Harbors to Duluth MN-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...Southwest wind 5 to 10 knots becoming south
late. Mostly cloudy. Waves 1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves
1 to 2 feet.
.MONDAY...Southwest wind 5 to 10 knots becoming west late in the
afternoon. Partly sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northeast wind 5 to 10 knots. Slight chance of
rain in the evening, then chance of rain after midnight. Waves
1 foot or less.

$$

LSZ145-232300-
Duluth MN to Port Wing WI-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots
after midnight. Mostly cloudy. Waves 1 to 2 feet.
.MONDAY...Southwest wind 5 to 10 knots becoming west late in the
afternoon. Partly sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northeast wind 5 to 10 knots. Slight chance of
rain in the evening, then chance of rain after midnight. Waves
1 foot or less.

$$

LSZ146-232300-
Port Wing to Sand Island WI-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...Southwest wind 5 to 10 knots easing to 5 knots
late. Mostly cloudy. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots
after midnight. Mostly cloudy. Waves 1 to 2 feet.
.MONDAY...Southwest wind 10 to 15 knots becoming west 5 knots
late in the afternoon. Partly sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northeast wind 5 knots rising to 5 to 10 knots
after midnight. Slight chance of rain in the evening, then chance
of rain after midnight. Waves 1 foot or less.

$$

LSZ147-232300-
Sand Island to Bayfield WI-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...Southwest wind 10 to 15 knots easing to 5 knots
late. Mostly cloudy. Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
20 knots. Mostly cloudy. Waves 1 to 2 feet.
.MONDAY...Southwest wind 5 to 10 knots becoming northwest late in
the afternoon. Partly sunny. Waves 1 to 2 feet.
.MONDAY NIGHT...Northeast wind 5 knots rising to 5 to 10 knots
after midnight. Slight chance of rain in the evening, then chance
of rain after midnight. Waves 1 foot or less.

$$

LSZ150-232300-
Outer Apostle Islands Beyond 5 NM from Mainland-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...West wind 10 to 15 knots becoming southwest 5 to
10 knots late. Mostly cloudy. Waves 1 to 3 feet subsiding to 1 to
2 feet in the afternoon.
.TONIGHT...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the late evening and overnight. Mostly cloudy. Waves 1 to 3 feet.
.MONDAY...Southwest wind 10 to 15 knots with gusts to around
20 knots becoming northwest 5 knots late in the afternoon. Partly
sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...Northeast wind 5 knots rising to 5 to 10 knots
after midnight. Slight chance of rain in the evening, then chance
of rain after midnight. Waves 1 foot or less.

$$

LSZ121-232300-
Chequamegon Bay-Bayfield to Oak Point WI-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.
.MONDAY...Southwest wind 5 to 10 knots becoming west late in the
afternoon. Partly sunny. Waves 1 foot or less.
.MONDAY NIGHT...North wind 5 knots becoming northeast in the late
evening and overnight. Chance of rain. Waves 1 foot or less.

$$

LSZ148-232300-
Oak Point to Saxon Harbor WI-
931 AM CST Sun Nov 23 2025

.REST OF TODAY...Southwest wind 5 to 10 knots. Mostly cloudy.
Waves 1 to 2 feet.
.TONIGHT...Southwest wind 10 to 15 knots with gusts to around
20 knots. Mostly cloudy. Waves 1 to 2 feet.
.MONDAY...Southwest wind 5 to 10 knots with gusts to around
20 knots becoming west late in the afternoon. Partly sunny. Waves
1 to 2 feet.
.MONDAY NIGHT...Northeast wind 5 to 10 knots. Chance of rain.
Waves 1 foot or less.

$$

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

WFO DLH