943
FZUS53 KDLH 151844
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
144 PM CDT Mon Sep 15 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.

LSZ140-141-152215-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
144 PM CDT Mon Sep 15 2025

.REST OF TODAY...East wind 10 to 15 knots. Slight chance of rain
showers late. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 10 to 15 knots becoming east 5 knots
after midnight. Slight chance of thunderstorms in the evening.
Slight chance of rain showers through the night. Patchy fog after
midnight. Waves 1 to 2 feet.
.TUESDAY...Southeast wind 5 knots becoming south in the late
morning and afternoon. Patchy fog in the morning. Waves 1 to
2 feet.
.TUESDAY NIGHT...Southwest wind 5 to 10 knots becoming west after
midnight. Slight chance of showers and thunderstorms after
midnight. Waves 1 foot or less.

$$

LSZ142-152215-
Taconite Harbor to Silver Bay Harbor MN-
144 PM CDT Mon Sep 15 2025

.REST OF TODAY...Northeast wind 5 to 10 knots. Slight chance of
showers late. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 5 to 10 knots. Slight chance of showers
and thunderstorms through the night. Waves 1 to 2 feet.
.TUESDAY...Northeast wind 5 knots becoming southeast in the late
morning and afternoon. Mostly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...Variable winds 10 knots or less becoming west
5 knots after midnight. Slight chance of showers and
thunderstorms after midnight. Waves 1 foot or less.

$$

LSZ143-152215-
Silver Bay Harbor to Two Harbors MN-
144 PM CDT Mon Sep 15 2025

.REST OF TODAY...Northeast wind 10 to 15 knots with gusts to
around 20 knots. Patchy fog early in the afternoon. Slight chance
of rain showers through the day. Slight chance of thunderstorms
late. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots after midnight. Slight chance of
thunderstorms in the evening. Slight chance of rain showers
through the night. Waves 1 to 2 feet.
.TUESDAY...Northeast wind 5 knots becoming southeast in the late
morning and afternoon. Mostly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...East wind 5 knots becoming northwest late in the
evening, then becoming west after midnight. Slight chance of
showers and thunderstorms after midnight. Waves 1 foot or less.

$$

LSZ144-145-152215-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
144 PM CDT Mon Sep 15 2025

.REST OF TODAY...Northeast wind 15 to 20 knots. Patchy fog early
in the afternoon. Slight chance of rain showers through the day.
Slight chance of thunderstorms late. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots after midnight. Slight chance of
thunderstorms in the evening. Slight chance of rain showers
through the night. Waves 1 to 2 feet.
.TUESDAY...East wind 5 knots becoming southeast in the late
morning and afternoon. Patchy fog in the morning. Waves 1 foot or
less.
.TUESDAY NIGHT...Southeast wind 5 knots becoming west in the late
evening and overnight. Slight chance of showers and thunderstorms
after midnight. Waves 1 foot or less.

$$

LSZ146-152215-
Port Wing to Sand Island WI-
144 PM CDT Mon Sep 15 2025

.REST OF TODAY...Northeast wind 15 to 20 knots. Slight chance of
rain showers through the day. Slight chance of thunderstorms
late. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 10 to 15 knots becoming east 5 knots
after midnight. Slight chance of thunderstorms in the evening.
Slight chance of rain showers through the night. Waves 1 to
2 feet.
.TUESDAY...Southeast wind 5 knots becoming southwest late in the
morning, then becoming northeast early in the afternoon becoming
east late in the afternoon. Mostly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...Southeast wind 5 knots becoming west after
midnight. Slight chance of showers and thunderstorms after
midnight. Waves 1 foot or less.

$$

LSZ147-152215-
Sand Island to Bayfield WI-
144 PM CDT Mon Sep 15 2025

.REST OF TODAY...Northeast wind 5 to 10 knots. Slight chance of
showers and thunderstorms late. Waves 1 foot or less.
.TONIGHT...East wind 5 to 10 knots becoming southeast after
midnight. Slight chance of thunderstorms in the evening. Slight
chance of showers through the night. Waves 1 foot or less.
.TUESDAY...South wind 5 knots becoming southwest early in the
afternoon, then becoming east late in the afternoon. Mostly
sunny. Waves 1 foot or less.
.TUESDAY NIGHT...Southeast wind 5 knots becoming west early in
the morning. Slight chance of showers and thunderstorms after
midnight. Waves 1 foot or less.

$$

LSZ121-152215-
Chequamegon Bay-Bayfield to Oak Point WI-
144 PM CDT Mon Sep 15 2025

.REST OF TODAY...North wind 5 to 10 knots becoming east late.
Slight chance of showers and thunderstorms late. Waves 1 foot or
less.
.TONIGHT...East wind 5 to 10 knots becoming south in the late
evening and overnight. Slight chance of thunderstorms in the
evening. Slight chance of showers through the night. Waves 1 foot
or less.
.TUESDAY...South wind 5 knots. Mostly sunny. Waves 1 foot or
less.
.TUESDAY NIGHT...South wind 5 knots becoming southwest early in
the morning. Slight chance of showers and thunderstorms after
midnight. Waves 1 foot or less.

$$

LSZ148-152215-
Oak Point to Saxon Harbor WI-
144 PM CDT Mon Sep 15 2025

.REST OF TODAY...Northeast wind 5 knots becoming east late.
Slight chance of showers and thunderstorms late. Waves 1 foot or
less.
.TONIGHT...Southeast wind 5 to 10 knots becoming south after
midnight. Slight chance of thunderstorms in the evening. Slight
chance of showers through the night. Waves 1 foot or less.
.TUESDAY...South wind 5 to 10 knots. Slight chance of showers in
the morning. Waves 1 foot or less.
.TUESDAY NIGHT...South wind 5 knots becoming southwest early in
the morning. Slight chance of showers and thunderstorms after
midnight. Waves 1 foot or less.

$$

LSZ150-152215-
Outer Apostle Islands Beyond 5 NM from Mainland-
144 PM CDT Mon Sep 15 2025

.REST OF TODAY...Northeast wind 5 to 10 knots. Slight chance of
showers and thunderstorms late. Waves 1 to 2 feet.
.TONIGHT...East wind 5 to 10 knots becoming south early in the
morning. Slight chance of thunderstorms in the evening. Slight
chance of showers through the night. Waves 1 to 2 feet.
.TUESDAY...South wind 5 to 10 knots becoming southeast late in
the afternoon. Mostly sunny. Waves 1 foot or less.
.TUESDAY NIGHT...South wind 5 knots becoming southwest after
midnight. Slight chance of showers and thunderstorms after
midnight. Waves 1 foot or less.

$$

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

JDS