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FZUS53 KDLH 181937
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
237 PM CDT Fri Apr 18 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.

LSZ140-141-190415-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
237 PM CDT Fri Apr 18 2025

.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
early in the evening. Mostly cloudy. Waves 1 foot or less.
.SATURDAY...Northwest wind 5 to 10 knots becoming west in the
afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 5 to 10 knots becoming northwest
after midnight, then becoming east early in the morning. Mostly
clear. Waves 1 foot or less.
.SUNDAY...Southeast wind 5 to 10 knots. Gusts up to 20 knots late
in the afternoon. Mostly sunny. Waves 1 foot or less.

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

$$

LSZ142-143-190415-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
237 PM CDT Fri Apr 18 2025

.TONIGHT...Northwest wind 5 to 10 knots with gusts to around
20 knots. Mostly cloudy until early morning then clearing. Waves
1 foot or less.
.SATURDAY...Northwest wind 5 to 10 knots with gusts to around
20 knots becoming southwest in the afternoon. Mostly sunny. Waves
1 foot or less.
.SATURDAY NIGHT...Southwest wind 5 knots becoming southeast late
in the evening, then becoming northeast after midnight. Mostly
clear. Waves 1 foot or less.
.SUNDAY...East wind 10 to 15 knots with gusts to around 20 knots.
Mostly sunny. Waves 1 to 2 feet.

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

$$

LSZ144-145-190415-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
237 PM CDT Fri Apr 18 2025

.TONIGHT...Northwest wind 10 to 15 knots. Gusts up to 20 knots
early in the evening. Mostly cloudy until early morning then
becoming partly cloudy. Waves 1 to 2 feet.
.SATURDAY...West wind 5 to 10 knots becoming southwest late in
the afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...East wind 5 knots. Mostly clear. Waves 1 foot
or less.
.SUNDAY...East wind 5 to 10 knots rising to 10 to 15 knots with
gusts to around 20 knots late in the afternoon. Mostly sunny.
Waves 1 to 2 feet.

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

$$

LSZ146-190415-
Port Wing to Sand Island WI-
237 PM CDT Fri Apr 18 2025

.TONIGHT...Northwest wind 5 to 10 knots. Slight chance of rain
early in the evening. Waves 1 foot or less.
.SATURDAY...West wind 5 to 10 knots becoming southwest in the
afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...South wind 5 knots becoming southeast in the
late evening and overnight. Mostly clear. Waves 1 foot or less.
.SUNDAY...Southeast wind 5 knots becoming northeast 10 to
15 knots in the afternoon. Mostly sunny. Waves 1 foot or less.

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

$$

LSZ147-190415-
Sand Island to Bayfield WI-
237 PM CDT Fri Apr 18 2025

.TONIGHT...Northwest wind 5 to 10 knots. Gusts up to 20 knots
late in the night. Mostly cloudy. Waves 1 foot or less.
.SATURDAY...West wind 5 to 10 knots easing to 5 knots late in the
afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...South wind 5 knots. Mostly clear. Waves 1 foot
or less.
.SUNDAY...Southeast wind 5 knots becoming east with gusts to
around 20 knots in the afternoon. Mostly sunny. Waves 1 foot or
less.

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

$$

LSZ121-190415-
Chequamegon Bay-Bayfield to Oak Point WI-
237 PM CDT Fri Apr 18 2025

.TONIGHT...Northwest wind 5 to 10 knots. Mostly cloudy until
early morning then becoming partly cloudy. Waves 1 foot or less.
.SATURDAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.
.SATURDAY NIGHT...East wind 5 knots becoming south in the late
evening and overnight. Mostly clear. Waves 1 foot or less.
.SUNDAY...South wind 5 knots becoming east in the afternoon.
Mostly sunny. Waves 1 foot or less.

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

$$

LSZ148-190415-
Oak Point to Saxon Harbor WI-
237 PM CDT Fri Apr 18 2025

.TONIGHT...Northwest wind 5 to 10 knots. Slight chance of rain in
the evening. Waves 1 foot or less.
.SATURDAY...Northwest wind 5 to 10 knots becoming northeast late
in the afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY NIGHT...Southeast wind 5 knots becoming south after
midnight. Mostly clear. Waves 1 foot or less.
.SUNDAY...South wind 5 knots becoming east in the afternoon.
Mostly sunny. Waves 1 to 2 feet.

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

$$

LSZ150-190415-
Outer Apostle Islands Beyond 5 NM from Mainland-
237 PM CDT Fri Apr 18 2025

.TONIGHT...Northwest wind 5 to 10 knots. Mostly cloudy. Waves
1 to 2 feet.
.SATURDAY...Northwest wind 5 to 10 knots becoming southwest late
in the afternoon. Mostly sunny. Waves 1 to 2 feet.
.SATURDAY NIGHT...South wind 5 knots. Mostly clear. Waves 1 foot
or less.
.SUNDAY...Southeast wind 5 knots becoming east with gusts to
around 20 knots in the afternoon. Mostly sunny. Waves 1 to
2 feet.

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

$$

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

Levens