Nearshore Marine Forecast
Issued by NWS Duluth, MN

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700
FZUS53 KDLH 202110
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
410 PM CDT Fri Sep 20 2024

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.

LSZ140-141-210415-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
410 PM CDT Fri Sep 20 2024

.TONIGHT...West wind 10 to 15 knots with gusts to around 20 knots
becoming northwest 5 knots after midnight. Mostly clear. Waves
1 to 3 feet subsiding to 1 to 2 feet in the late evening and
overnight.
.SATURDAY...West wind 5 knots becoming southeast in the late
morning and early afternoon, then becoming east late in the
afternoon. Chance of rain showers and slight chance of
thunderstorms in the afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
late in the evening increasing to 25 knots, then decreasing to
20 knots early in the morning. Slight chance of showers and
thunderstorms in the evening. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 10 to 15 knots easing to 5 to 10 knots
in the afternoon. Gusts up to 20 knots. Sunny. Waves 1 to 2 feet.

$$

LSZ142-143-210415-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
410 PM CDT Fri Sep 20 2024

.TONIGHT...West wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.SATURDAY...Southwest wind 5 knots becoming northeast late in the
afternoon. Slight chance of rain showers in the morning, then
chance of rain showers and slight chance of thunderstorms in the
afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Partly cloudy. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 10 to 15 knots with gusts to around
20 knots. Sunny. Waves 1 foot or less.

$$

LSZ144-145-210415-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
410 PM CDT Fri Sep 20 2024

.TONIGHT...Southwest wind 5 to 10 knots. Slight chance of rain
showers late in the night. Waves 1 foot or less.
.SATURDAY...South wind 5 knots becoming northeast late in the
afternoon. Slight chance of rain showers in the morning, then
chance of rain showers and slight chance of thunderstorms in the
afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...Northwest wind 10 to 15 knots with gusts to
around 20 knots. Partly cloudy. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 10 to 15 knots easing to 5 to 10 knots
in the afternoon. Sunny. Waves 1 to 2 feet.

$$

LSZ146-210415-
Port Wing to Sand Island WI-
410 PM CDT Fri Sep 20 2024

.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.SATURDAY...South wind 5 to 10 knots becoming southeast early in
the afternoon, then becoming north late in the afternoon. Slight
chance of rain showers in the morning, then chance of showers and
thunderstorms in the afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 15 to 20 knots. Slight chance of
showers and thunderstorms in the evening. Waves 1 to 2 feet
building to 1 to 3 feet in the late evening and overnight.
.SUNDAY...Northwest wind 10 to 15 knots easing to 5 to 10 knots
in the afternoon. Gusts up to 20 knots. Mostly sunny. Waves 1 to
2 feet.

$$

LSZ147-210415-
Sand Island to Bayfield WI-
410 PM CDT Fri Sep 20 2024

.TONIGHT...Southwest wind 5 to 10 knots. Clear. Waves 1 to
2 feet.
.SATURDAY...South wind 5 to 10 knots becoming east late in the
afternoon. Slight chance of rain showers in the morning, then
chance of showers and thunderstorms in the afternoon. Waves
1 foot or less.
.SATURDAY NIGHT...West wind 15 to 20 knots. Slight chance of
showers and thunderstorms in the evening. Waves 1 to 2 feet
building to 1 to 3 feet in the late evening and overnight.
.SUNDAY...Northwest wind 10 to 15 knots easing to 10 knots late
in the afternoon. Gusts up to 20 knots. Mostly sunny. Waves 1 to
3 feet.

$$

LSZ150-210415-
Outer Apostle Islands Beyond 5 NM from Mainland-
410 PM CDT Fri Sep 20 2024

.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves 1 to
2 feet.
.SATURDAY...South wind 5 to 10 knots becoming southeast in the
afternoon. Slight chance of showers in the morning, then chance
of showers and thunderstorms in the afternoon. Waves 1 foot or
less.
.SATURDAY NIGHT...West wind 15 to 20 knots with gusts to around
25 knots becoming northwest with gusts to around 25 knots after
midnight. Chance of thunderstorms and slight chance of rain
showers in the evening. Waves 1 to 2 feet building to 2 to 4 feet
in the late evening and overnight. A small craft advisory may be
needed.
.SUNDAY...Northwest wind 15 to 20 knots easing to 10 knots late
in the afternoon. Mostly sunny. Waves 2 to 4 feet subsiding to
1 to 3 feet in the afternoon.

$$

LSZ121-210415-
Chequamegon Bay-Bayfield to Oak Point WI-
410 PM CDT Fri Sep 20 2024

.TONIGHT...Southwest wind 5 to 10 knots. Clear. Waves 1 foot or
less.
.SATURDAY...South wind 5 to 10 knots. Slight chance of rain
showers in the morning, then chance of showers and thunderstorms
in the afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
in the late evening and early morning. Chance of showers and
thunderstorms in the evening. Waves 1 foot or less.
.SUNDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots late
in the morning. Mostly sunny. Waves 1 foot or less.

$$

LSZ148-210415-
Oak Point to Saxon Harbor WI-
410 PM CDT Fri Sep 20 2024

.TONIGHT...Southwest wind 5 to 10 knots. Mostly clear. Waves
1 foot or less.
.SATURDAY...South wind 5 to 10 knots. Slight chance of rain
showers in the morning, then chance of showers and thunderstorms
in the afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots becoming northwest with gusts to around 20 knots after
midnight. Chance of showers and thunderstorms in the evening.
Waves 1 foot or less building to 1 to 3 feet in the late evening
and overnight.
.SUNDAY...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 to 10 knots with gusts to around 20 knots in
the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet.

$$

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

JDS