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FZUS53 KDLH 222215
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
415 PM CST Sat Feb 22 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.

LSZ140-141-230515-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
415 PM CST Sat Feb 22 2025

.TONIGHT...West wind 5 knots becoming northeast late in the
night. Partly cloudy in the evening then becoming mostly cloudy.
Waves 1 foot or less.
.SUNDAY...East wind 5 to 10 knots becoming south with gusts to
around 20 knots late in the afternoon. Chance of snow in the
afternoon. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to
20 knots increasing to 30 knots in the late evening and
overnight. Chance of rain and snow in the evening. Chance of
light freezing rain through the night. Slight chance of rain
after midnight. Waves 1 foot or less.
.MONDAY...West wind 10 to 15 knots. Gusts up to 30 knots
decreasing to 20 knots. Chance of sprinkles in the afternoon.
Waves 1 foot or less.

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

$$

LSZ142-230515-
Taconite Harbor to Silver Bay Harbor MN-
415 PM CST Sat Feb 22 2025

.TONIGHT...West wind 5 knots becoming east late in the night.
Partly cloudy in the evening then becoming mostly cloudy. Waves
1 foot or less.
.SUNDAY...Southeast wind 5 knots becoming south in the afternoon.
Chance of light freezing rain and flurries in the afternoon.
Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots increasing to 25 knots in the late evening and
overnight. Chance of rain, snow and light freezing rain in the
evening, then slight chance of rain after midnight. Waves 1 to
2 feet.
.MONDAY...West wind 10 to 15 knots. Gusts up to 25 knots
decreasing to 20 knots in the afternoon. Chance of sprinkles in
the morning, then slight chance of rain in the afternoon. Waves
1 to 2 feet.

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

$$

LSZ143-230515-
Silver Bay Harbor to Two Harbors MN-
415 PM CST Sat Feb 22 2025

.TONIGHT...West wind 5 to 10 knots becoming north after midnight,
then becoming east late in the night. Partly cloudy early in the
evening then becoming mostly cloudy. Waves 1 to 2 feet.
.SUNDAY...Southeast wind 5 knots becoming south in the afternoon.
Chance of sprinkles and flurries in the afternoon. Waves 1 foot
or less.
.SUNDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots increasing to 30 knots. Chance of rain and light
freezing rain in the evening, then slight chance of rain after
midnight. Waves 1 to 2 feet building to 1 to 3 feet after
midnight.
.MONDAY...West wind 10 to 15 knots. Gusts up to 30 knots
decreasing to 20 knots. Slight chance of rain in the afternoon.
Waves 1 to 3 feet.

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

$$

LSZ144-145-230515-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
415 PM CST Sat Feb 22 2025

.TONIGHT...Southwest wind 5 to 10 knots becoming south late in
the night. Mostly cloudy. Waves 1 foot or less.
.SUNDAY...Southeast wind 5 knots becoming southwest with gusts to
around 20 knots in the late morning and afternoon. Chance of
sprinkles in the afternoon. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to
20 knots increasing to 25 knots in the late evening and
overnight. Chance of rain in the evening, then chance of
sprinkles after midnight. Waves 1 to 3 feet.
.MONDAY...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots in the late morning and afternoon. Slight
chance of rain in the afternoon. Waves 1 to 3 feet.

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

$$

LSZ146-230515-
Port Wing to Sand Island WI-
415 PM CST Sat Feb 22 2025

.TONIGHT...Southwest wind 5 to 10 knots becoming south late in
the night. Mostly cloudy. Waves 1 to 2 feet.
.SUNDAY...Southeast wind 5 knots becoming southwest in the late
morning and afternoon. Chance of sprinkles in the afternoon.
Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to
20 knots increasing to 25 knots in the late evening and
overnight. Chance of rain in the evening, then slight chance of
rain after midnight. Waves 1 to 2 feet building to 1 to 3 feet
after midnight.
.MONDAY...Southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 to 15 knots with gusts to around
25 knots in the late morning and afternoon. Slight chance of rain
in the afternoon. Waves 1 to 3 feet.

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

$$

LSZ150-230515-
Outer Apostle Islands Beyond 5 NM from Mainland-
415 PM CST Sat Feb 22 2025

.TONIGHT...West wind 5 to 10 knots becoming south after midnight.
Mostly cloudy. Waves 1 to 2 feet.
.SUNDAY...South wind 5 to 10 knots. Chance of sprinkles in the
afternoon. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to
20 knots increasing to 25 knots in the late evening and
overnight. Chance of rain in the evening, then slight chance of
rain after midnight. Waves 1 to 2 feet building to 2 to 4 feet
early in the morning.
.MONDAY...West wind 15 to 20 knots. Gusts up to 25 knots
decreasing to 20 knots in the afternoon. Chance of sprinkles in
the afternoon. Waves 2 to 4 feet.

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

$$

LSZ148-230515-
Oak Point to Saxon Harbor WI-
415 PM CST Sat Feb 22 2025

.TONIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves
1 foot or less.
.SUNDAY...South wind 5 to 10 knots. Chance of flurries in the
morning. Chance of sprinkles and slight chance of snow in the
afternoon. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to
20 knots increasing to 25 knots in the late evening and
overnight. Chance of rain in the evening, then slight chance of
rain after midnight. Waves 1 foot or less.
.MONDAY...West wind 15 to 20 knots. Gusts up to 25 knots. Slight
chance of rain in the afternoon. Waves 1 foot or less.

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

$$

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

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