Nearshore Marine Forecast
Issued by NWS Duluth, MN

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747
FZUS53 KDLH 150301
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
1001 PM 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.

LSZ140-141-151015-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
1001 PM CDT Mon Jul 14 2025

.REST OF TONIGHT...Northeast wind 5 to 10 knots. Areas of smoke
through the night. Slight chance of rain showers late in the
evening. Chance of showers and thunderstorms after midnight.
Waves 1 foot or less.
.TUESDAY...East wind 5 to 10 knots becoming northwest early in
the afternoon, then becoming north late in the afternoon. Areas
of smoke through the day. Chance of showers and thunderstorms in
the morning. Rain showers and 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. Showers and thunderstorms likely in the
evening, then chance of rain showers after midnight. Waves 1 to
2 feet.
.WEDNESDAY...Northeast wind 10 to 15 knots with gusts to around
20 knots. Chance of rain showers. Waves 1 to 2 feet.

$$

LSZ142-143-151015-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
1001 PM CDT Mon Jul 14 2025

.REST OF TONIGHT...Northeast wind 5 to 10 knots. Areas of smoke
through the night. Slight chance of rain showers in the late
evening and early morning. Slight chance of thunderstorms after
midnight, then chance of showers and thunderstorms toward
daybreak. Waves 1 foot or less.
.TUESDAY...Northeast wind 5 to 10 knots. Areas of smoke through
the day. Chance of thunderstorms in the morning. Chance of rain
showers through the day. Thunderstorms likely in the afternoon.
Waves 1 foot or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to
around 20 knots. Thunderstorms likely in the evening. Rain
showers likely through the night. Waves 1 to 2 feet.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely in the morning, then chance of rain
showers in the afternoon. Waves 2 to 4 feet.

$$

LSZ144-145-151015-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
1001 PM CDT Mon Jul 14 2025

.REST OF TONIGHT...Northeast wind 5 to 10 knots. Areas of smoke
through the night. Slight chance of showers through the night.
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.
Showers and thunderstorms likely in the afternoon. Waves 1 foot
or less.
.TUESDAY NIGHT...Northeast wind 15 to 20 knots. Areas of smoke in
the evening. Thunderstorms likely in the evening. Rain showers
likely through the night. Slight chance of thunderstorms after
midnight. Waves 1 to 3 feet.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely in the morning. Slight chance of
thunderstorms through the day. Chance of rain showers in the
afternoon. Waves 2 to 4 feet. A small craft advisory may be
needed.

$$

LSZ146-151015-
Port Wing to Sand Island WI-
1001 PM CDT Mon Jul 14 2025

.REST OF TONIGHT...East wind 5 to 10 knots becoming northeast
toward daybreak. Areas of smoke through the night. Slight chance
of showers through the night. Slight chance of thunderstorms
after midnight. Waves 1 foot or less.
.TUESDAY...East wind 5 to 10 knots becoming northeast in the
afternoon. Areas of smoke through the day. Chance of showers and
thunderstorms in the morning. Rain showers and 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. Areas of smoke in the evening.
Thunderstorms likely in the evening. Rain showers likely through
the night. Waves 1 to 2 feet.
.WEDNESDAY...Northeast wind 10 to 15 knots with gusts to around
25 knots. Rain showers likely and slight chance of thunderstorms.
Waves 2 to 4 feet.

$$

LSZ147-151015-
Sand Island to Bayfield WI-
1001 PM CDT Mon Jul 14 2025

.REST OF TONIGHT...East wind 5 to 10 knots. Areas of smoke
through the night. Slight chance of showers through the night.
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 showers and
thunderstorms in the morning. Showers and thunderstorms likely in
the afternoon. Waves 1 foot or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots with gusts to
around 20 knots. Areas of smoke in the evening. Thunderstorms
likely in the evening. Rain showers likely through the night.
Waves 1 to 2 feet.
.WEDNESDAY...Northeast wind 10 to 15 knots with gusts to around
25 knots. Rain showers likely and slight chance of thunderstorms.
Waves 2 to 4 feet.

$$

LSZ150-151015-
Outer Apostle Islands Beyond 5 NM from Mainland-
1001 PM CDT Mon Jul 14 2025

.REST OF TONIGHT...East wind 5 to 10 knots becoming southeast
toward daybreak. Areas of smoke through the night. Slight chance
of showers through the night. Slight chance of thunderstorms
after midnight. Waves 1 foot or less.
.TUESDAY...Southeast wind 5 to 10 knots becoming north early in
the afternoon, then becoming northeast late in the afternoon.
Areas of smoke through the day. Chance of showers and
thunderstorms in the morning. Showers and thunderstorms likely in
the afternoon. Waves 1 foot or less.
.TUESDAY NIGHT...Northeast wind 10 to 15 knots. Gusts up to
25 knots. Areas of smoke in the evening. Thunderstorms likely in
the evening. Rain showers likely through the night. Waves 1 to
3 feet.
.WEDNESDAY...Northeast wind 5 to 15 knots rising to 15 to
20 knots in the late morning and afternoon. Gusts up to 25 knots.
Rain showers likely and slight chance of thunderstorms. Waves
3 to 5 feet. A small craft advisory may be needed.

$$

LSZ121-151015-
Chequamegon Bay-Bayfield to Oak Point WI-
1001 PM CDT Mon Jul 14 2025

.REST OF TONIGHT...Northeast wind 5 knots becoming south toward
daybreak. Areas of smoke. Slight chance of showers and
thunderstorms. Waves 1 foot or less.
.TUESDAY...Southwest wind 5 to 10 knots becoming east in the
afternoon. Chance of showers and thunderstorms in the morning,
then showers and 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. Areas of smoke in the evening.
Thunderstorms likely in the evening. Rain showers likely through
the night. Slight chance of thunderstorms after midnight. Waves
1 foot or less.
.WEDNESDAY...Northeast wind 10 to 15 knots with gusts to around
25 knots. Rain showers likely and slight chance of thunderstorms.
Waves 1 to 2 feet.

$$

LSZ148-151015-
Oak Point to Saxon Harbor WI-
1001 PM CDT Mon Jul 14 2025

.REST OF TONIGHT...East wind 5 to 10 knots becoming south toward
daybreak. Areas of smoke. Slight chance of showers and
thunderstorms. Waves 1 foot or less.
.TUESDAY...Southwest wind 5 to 10 knots becoming north early in
the afternoon, then becoming northeast late in the afternoon.
Chance of showers and thunderstorms in the morning, then showers
and 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. Areas of smoke in the evening.
Thunderstorms likely in the evening. Rain showers likely through
the night. Slight chance of thunderstorms after midnight. Waves
1 to 3 feet.
.WEDNESDAY...Northeast wind 15 to 20 knots with gusts to around
25 knots. Rain showers likely and slight chance of thunderstorms.
Waves 2 to 4 feet. A small craft advisory may be needed.

$$

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

Huyck