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FZUS53 KDLH 241509
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1009 AM CDT Sat May 24 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.

LSZ140-141-242215-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
1009 AM CDT Sat May 24 2025

.REST OF TODAY...Southeast wind 5 knots becoming south late.
Slight chance of showers and thunderstorms in the afternoon.
Waves 1 foot or less.
.TONIGHT...Southeast wind 5 knots becoming northwest in the late
evening and overnight. Slight chance of rain showers in the
evening. Waves 1 foot or less.
.SUNDAY...Northwest wind 5 knots becoming south in the late
morning and afternoon. Mostly sunny. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 5 knots becoming northwest in the
late evening and overnight. Partly cloudy. Waves 1 foot or less.

$$

LSZ142-143-242215-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
1009 AM CDT Sat May 24 2025

.REST OF TODAY...East wind 5 knots. Chance of rain showers and
slight chance of thunderstorms in the afternoon. Waves 1 foot or
less.
.TONIGHT...Northeast wind 5 knots becoming north after midnight,
then becoming variable 10 knots or less early in the morning.
Slight chance of showers and thunderstorms in the evening. Waves
1 foot or less.
.SUNDAY...Variable winds 10 knots or less becoming southeast
5 knots in the late morning and early afternoon, then becoming
east late in the afternoon. Sunny. Waves 1 foot or less.
.SUNDAY NIGHT...East wind 5 knots becoming northeast in the late
evening and early morning, then becoming variable 10 knots or
less early in the morning. Mostly clear. Waves 1 foot or less.

$$

LSZ144-145-242215-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
1009 AM CDT Sat May 24 2025

.REST OF TODAY...Northeast wind 5 knots. Slight chance of rain
showers in the afternoon. Waves 1 foot or less.
.TONIGHT...Northeast wind 5 knots until early morning becoming
variable 10 knots or less. Slight chance of rain showers in the
evening. Waves 1 foot or less.
.SUNDAY...Variable winds 10 knots or less becoming east 5 knots
in the late morning and early afternoon, then becoming northeast
late in the afternoon. Sunny. Waves 1 foot or less.
.SUNDAY NIGHT...Northeast wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.

$$

LSZ146-242215-
Port Wing to Sand Island WI-
1009 AM CDT Sat May 24 2025

.REST OF TODAY...Northeast wind 5 knots. Slight chance of rain
showers late. Waves 1 foot or less.
.TONIGHT...Northeast wind 5 knots until early morning becoming
variable 10 knots or less. Partly cloudy. Waves 1 foot or less.
.SUNDAY...Variable winds 10 knots or less becoming west 5 knots
late in the morning, then becoming northeast in the afternoon.
Sunny. Waves 1 foot or less.
.SUNDAY NIGHT...East wind 5 knots until early morning becoming
variable 10 knots or less. Mostly clear. Waves 1 foot or less.

$$

LSZ147-242215-
Sand Island to Bayfield WI-
1009 AM CDT Sat May 24 2025

.REST OF TODAY...East wind 5 knots. Mostly sunny. Waves 1 foot or
less.
.TONIGHT...East wind 5 knots until early morning becoming
variable 10 knots or less. Partly cloudy. Waves 1 foot or less.
.SUNDAY...Variable winds 10 knots or less becoming northwest
5 knots late in the morning, then becoming east in the afternoon.
Sunny. Waves 1 foot or less.
.SUNDAY NIGHT...East wind 5 knots in the evening becoming
variable 10 knots or less. Mostly clear. Waves 1 foot or less.

$$

LSZ150-242215-
Outer Apostle Islands Beyond 5 NM from Mainland-
1009 AM CDT Sat May 24 2025

.REST OF TODAY...East wind 5 knots. Mostly sunny. Waves 1 foot or
less.
.TONIGHT...East wind 5 knots until early morning becoming
variable 10 knots or less. Partly cloudy. Waves 1 foot or less.
.SUNDAY...Variable winds 10 knots or less becoming west 5 knots
late in the morning, then becoming east in the afternoon. Sunny.
Waves 1 foot or less.
.SUNDAY NIGHT...East wind 5 knots in the evening becoming
variable 10 knots or less. Mostly clear. Waves 1 foot or less.

$$

LSZ121-242215-
Chequamegon Bay-Bayfield to Oak Point WI-
1009 AM CDT Sat May 24 2025

.REST OF TODAY...Northeast wind 5 knots. Mostly sunny. Waves
1 foot or less.
.TONIGHT...Northeast wind 5 knots becoming northwest after
midnight, then becoming variable 10 knots or less early in the
morning. Partly cloudy. Waves 1 foot or less.
.SUNDAY...Variable winds 10 knots or less becoming northeast
5 knots in the late morning and afternoon. Sunny. Waves 1 foot or
less.
.SUNDAY NIGHT...East wind 5 knots in the evening becoming
variable 10 knots or less. Mostly clear. Waves 1 foot or less.

$$

LSZ148-242215-
Oak Point to Saxon Harbor WI-
1009 AM CDT Sat May 24 2025

.REST OF TODAY...Northeast wind 5 knots. Mostly sunny. Waves
1 foot or less.
.TONIGHT...Northeast wind 5 knots becoming north after midnight,
then becoming variable 10 knots or less early in the morning.
Partly cloudy. Waves 1 foot or less.
.SUNDAY...Variable winds 10 knots or less becoming northeast
5 knots in the late morning and afternoon. Sunny. Waves 1 foot or
less.
.SUNDAY NIGHT...East wind 5 knots in the evening becoming
variable 10 knots or less. Mostly clear. Waves 1 foot or less.

$$

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

BJH