050
FZUS53 KDLH 032101
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
401 PM CDT Thu Apr 3 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>142-040415-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
401 PM CDT Thu Apr 3 2025

.TONIGHT...West wind 10 to 15 knots. Partly cloudy. Waves 1 to
2 feet.
.FRIDAY...Northwest wind 5 to 10 knots becoming south in the late
morning and afternoon. Mostly sunny in the morning then becoming
mostly cloudy. Waves 1 foot or less.
.FRIDAY NIGHT...East wind 5 to 10 knots becoming northwest with
gusts to around 20 knots in the late evening and overnight.
Slight chance of rain in the evening, then chance of rain and
snow after midnight. Waves 1 foot or less.
.SATURDAY...Northwest wind 10 to 15 knots with gusts to around
20 knots. Slight chance of snow through the day. Waves 1 to
2 feet.

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

$$

LSZ143-040415-
Silver Bay Harbor to Two Harbors MN-
401 PM CDT Thu Apr 3 2025

.TONIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot
or less.
.FRIDAY...West wind 5 knots becoming southeast in the late
morning and early afternoon, then becoming east late in the
afternoon. Partly sunny. Waves 1 foot or less.
.FRIDAY NIGHT...East wind 5 knots becoming northwest with gusts
to around 20 knots after midnight. Chance of rain through the
night. Chance of snow after midnight. Waves 1 foot or less.
.SATURDAY...Northwest wind 5 to 10 knots with gusts to around
20 knots. Slight chance of snow through the day. Waves 1 foot or
less.

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

$$

LSZ144-040415-
Two Harbors to Duluth MN-
401 PM CDT Thu Apr 3 2025

.TONIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot
or less.
.FRIDAY...Southwest wind 5 knots becoming southeast in the late
morning and early afternoon, then becoming east late in the
afternoon. Mostly cloudy. Waves 1 foot or less.
.FRIDAY NIGHT...East wind 5 to 10 knots becoming northwest after
midnight. Chance of rain through the night. Chance of snow after
midnight. Waves 1 foot or less.
.SATURDAY...Northwest wind 10 to 15 knots with gusts to around
20 knots. Slight chance of snow in the morning. Waves 1 to
2 feet.

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

$$

LSZ145-040415-
Duluth MN to Port Wing WI-
401 PM CDT Thu Apr 3 2025

.TONIGHT...West wind 5 to 10 knots. Partly cloudy until early
morning then becoming mostly cloudy. Waves 1 to 2 feet.
.FRIDAY...South wind 5 knots becoming east in the afternoon.
Mostly cloudy. Waves 1 foot or less.
.FRIDAY NIGHT...Northeast wind 5 to 10 knots becoming northwest
after midnight. Chance of rain through the night. Chance of snow
after midnight. Waves 1 foot or less.
.SATURDAY...Northwest wind 10 to 15 knots with gusts to around
20 knots. Slight chance of snow in the morning. Waves 1 to
2 feet.

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

$$

LSZ146-040415-
Port Wing to Sand Island WI-
401 PM CDT Thu Apr 3 2025

.TONIGHT...West wind 5 to 10 knots. Mostly cloudy early in the
evening then becoming partly cloudy. Waves 1 to 2 feet.
.FRIDAY...Southwest wind 5 knots becoming northeast in the
afternoon. Mostly cloudy. Waves 1 foot or less.
.FRIDAY NIGHT...East wind 5 to 10 knots becoming northwest after
midnight. Slight chance of rain in the evening, then chance of
rain and snow after midnight. Waves 1 foot or less.
.SATURDAY...Northwest wind 10 knots becoming west in the late
morning and afternoon. Gusts up to 20 knots. Slight chance of
snow through the day. Waves 1 to 2 feet.

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

$$

LSZ147-040415-
Sand Island to Bayfield WI-
401 PM CDT Thu Apr 3 2025

.TONIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 to
2 feet.
.FRIDAY...Southwest wind 5 knots becoming east in the afternoon.
Partly sunny. Waves 1 foot or less.
.FRIDAY NIGHT...East wind 5 knots becoming northwest after
midnight. Slight chance of rain in the evening, then chance of
rain and snow after midnight. Waves 1 foot or less.
.SATURDAY...Northwest wind 5 to 10 knots with gusts to around
20 knots. Slight chance of snow through the day. Waves 1 foot or
less.

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

$$

LSZ150-040415-
Outer Apostle Islands Beyond 5 NM from Mainland-
401 PM CDT Thu Apr 3 2025

.TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots
easing to 5 knots after midnight. Partly cloudy. Waves 1 to
3 feet.
.FRIDAY...Southwest wind 5 knots becoming east in the afternoon.
Partly sunny. Waves 1 foot or less.
.FRIDAY NIGHT...Northeast wind 5 to 10 knots becoming northwest
after midnight. Chance of snow and rain after midnight. Waves
1 foot or less.
.SATURDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots
early in the afternoon. Slight chance of snow through the day.
Waves 1 to 2 feet.

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

$$

LSZ121-040415-
Chequamegon Bay-Bayfield to Oak Point WI-
401 PM CDT Thu Apr 3 2025

.TONIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot
or less.
.FRIDAY...Southwest wind 5 knots becoming south late in the
morning, then becoming east in the afternoon. Partly sunny. Waves
1 foot or less.
.FRIDAY NIGHT...Northeast wind 5 to 10 knots becoming northwest
after midnight. Chance of snow and rain after midnight. Waves
1 foot or less.
.SATURDAY...Northwest wind 5 to 10 knots. Slight chance of rain
in the morning. Slight chance of snow through the day. Waves
1 foot or less.

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

$$

LSZ148-040415-
Oak Point to Saxon Harbor WI-
401 PM CDT Thu Apr 3 2025

.TONIGHT...West wind 5 to 10 knots. Partly cloudy. Waves 1 foot
or less.
.FRIDAY...Southwest wind 5 knots becoming southeast late in the
morning, then becoming northeast in the afternoon. Partly sunny.
Waves 1 foot or less.
.FRIDAY NIGHT...Northeast wind 5 to 10 knots becoming northwest
after midnight. Chance of snow and slight chance of rain after
midnight. Waves 1 foot or less.
.SATURDAY...Northwest wind 10 to 15 knots becoming west late in
the afternoon. Slight chance of rain in the morning. Slight
chance of snow through the day. Waves 1 to 2 feet.

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

$$

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

Rothstein