Nearshore Marine Forecast
Issued by NWS Duluth, MN

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FZUS53 KDLH 140841
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
341 AM CDT Mon Jul 14 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.

LSZ140-141-141615-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
341 AM CDT Mon Jul 14 2025

.TODAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Areas of smoke through the day. Slight chance of
rain showers late in the afternoon. Waves 1 to 2 feet.
.TONIGHT...North wind 5 to 10 knots becoming northeast in the
late evening and overnight. Areas of smoke. Chance of rain
showers and slight chance of thunderstorms. Waves 1 to 2 feet.
.TUESDAY...East wind 5 to 10 knots becoming southeast late in the
morning, then becoming north in the afternoon. Areas of smoke
through the day. Rain showers likely and slight chance of
thunderstorms in the morning. Rain showers and chance of
thunderstorms in the afternoon. Waves 1 foot or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots after midnight. Areas of smoke in the evening. Rain
showers and chance of thunderstorms in the evening, then rain
showers likely and slight chance of thunderstorms after midnight.
Waves 1 to 2 feet.

$$

LSZ142-143-141615-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
341 AM CDT Mon Jul 14 2025

.TODAY...Southwest wind 5 knots becoming south late in the
afternoon. Areas of smoke. Waves 1 foot or less.
.TONIGHT...Northeast wind 5 to 10 knots. Areas of smoke through
the night. Slight chance of showers and thunderstorms in the
evening. Chance of showers and thunderstorms after midnight.
Waves 1 foot or less.
.TUESDAY...Northeast wind 5 to 10 knots. Areas of smoke through
the day. Rain showers likely in the morning. Chance of
thunderstorms through the day. Rain showers in the afternoon.
Waves 1 foot or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots after midnight. Rain showers and chance of
thunderstorms. Waves 1 foot or less.

$$

LSZ144-145-141615-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
341 AM CDT Mon Jul 14 2025

.TODAY...Southwest wind 5 knots becoming south late in the
afternoon. Areas of smoke through the day. Waves 1 foot or less.
.TONIGHT...Northeast wind 5 to 10 knots. Areas of smoke through
the night. Chance of showers and slight chance of thunderstorms
after midnight. Waves 1 foot or less.
.TUESDAY...Northeast wind 5 to 10 knots. Areas of smoke through
the day. Chance of showers and thunderstorms in the morning. Rain
showers with thunderstorms likely in the afternoon. Waves 1 foot
or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
25 knots. Thunderstorms likely in the evening. Rain showers
through the night. Chance of thunderstorms after midnight. Waves
1 to 2 feet.

$$

LSZ146-141615-
Port Wing to Sand Island WI-
341 AM CDT Mon Jul 14 2025

.TODAY...Southwest wind 5 knots becoming south late in the
afternoon. Areas of smoke through the day. Waves 1 foot or less.
.TONIGHT...East wind 5 to 10 knots. Areas of smoke through the
night. Chance of rain showers and slight chance of thunderstorms
after midnight. Waves 1 foot or less.
.TUESDAY...Northeast wind 5 to 10 knots. Areas of smoke through
the day. Chance of showers and thunderstorms in the morning. Rain
showers with thunderstorms likely in the afternoon. Waves 1 foot
or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots after midnight. Rain showers and chance of
thunderstorms. Waves 1 to 2 feet.

$$

LSZ147-141615-
Sand Island to Bayfield WI-
341 AM CDT Mon Jul 14 2025

.TODAY...West wind 5 to 10 knots becoming south late in the
afternoon. Areas of smoke through the day. Waves 1 foot or less.
.TONIGHT...East wind 5 knots. Areas of smoke through the night.
Chance of rain showers and slight chance of thunderstorms after
midnight. Waves 1 foot or less.
.TUESDAY...East wind 5 knots becoming north in the afternoon.
Areas of smoke through the day. Chance of rain showers in the
morning. Chance of thunderstorms through the day. Rain showers in
the afternoon. Waves 1 foot or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to
around 20 knots. Rain showers and chance of thunderstorms. Waves
1 to 2 feet.

$$

LSZ150-141615-
Outer Apostle Islands Beyond 5 NM from Mainland-
341 AM CDT Mon Jul 14 2025

.TODAY...West wind 5 to 10 knots becoming south in the afternoon.
Areas of smoke. Waves 1 to 2 feet.
.TONIGHT...East wind 5 to 10 knots. Areas of smoke through the
night. Chance of rain showers and slight chance of thunderstorms
after midnight. Waves 1 to 2 feet.
.TUESDAY...Southeast wind 5 to 10 knots becoming north in the
afternoon. Areas of smoke through the day. Chance of rain showers
in the morning. Chance of thunderstorms through the day. Rain
showers in the afternoon. Waves 1 to 2 feet.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots after midnight. Chance of thunderstorms in the evening.
Rain showers through the night. Slight chance of thunderstorms
after midnight. Waves 1 to 2 feet.

$$

LSZ121-141615-
Chequamegon Bay-Bayfield to Oak Point WI-
341 AM CDT Mon Jul 14 2025

.TODAY...Southwest wind 5 knots becoming southeast late in the
afternoon. Areas of smoke through the day. Waves 1 foot or less.
.TONIGHT...East wind 5 knots becoming south early in the morning.
Areas of smoke through the night. Slight chance of showers and
thunderstorms after midnight. Waves 1 foot or less.
.TUESDAY...Northeast wind 5 to 10 knots becoming southwest late
in the morning, then becoming west early in the afternoon
becoming north late in the afternoon. Chance of showers and
slight chance of thunderstorms in the morning, then showers with
thunderstorms likely in the afternoon. Waves 1 foot or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots early in the morning. Rain showers and chance of
thunderstorms. Waves 1 foot or less.

$$

LSZ148-141615-
Oak Point to Saxon Harbor WI-
341 AM CDT Mon Jul 14 2025

.TODAY...Southwest wind 5 to 10 knots becoming southeast in the
afternoon. Areas of smoke through the day. Waves 1 foot or less.
.TONIGHT...East wind 5 knots becoming south after midnight. Areas
of smoke in the evening. Slight chance of showers and
thunderstorms after midnight. Waves 1 foot or less.
.TUESDAY...Southwest wind 5 to 10 knots becoming northeast late
in the afternoon. Chance of showers and slight chance of
thunderstorms in the morning, then showers with thunderstorms
likely in the afternoon. Areas of smoke in the afternoon. Waves
1 foot or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
20 knots after midnight. Rain showers and chance of
thunderstorms. Waves 1 to 2 feet.

$$

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

LE