877
FZUS53 KDLH 040811
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
311 AM CDT Fri Jul 4 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.

LSZ140-141-041615-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
311 AM CDT Fri Jul 4 2025

.TODAY...East wind 5 to 10 knots becoming southeast late in the
afternoon. Chance of showers and thunderstorms in the morning.
Waves 1 to 2 feet.
.TONIGHT...Southeast wind 5 to 10 knots becoming south after
midnight. Chance of showers and thunderstorms. Waves 1 to 2 feet.
.SATURDAY...Southwest wind 5 to 10 knots becoming northwest late
in the afternoon. Rain showers and chance of thunderstorms. Waves
1 to 2 feet.
.SATURDAY NIGHT...North wind 10 to 15 knots with gusts to around
20 knots. Rain showers and chance of thunderstorms in the
evening, then slight chance of rain showers after midnight. Waves
1 to 2 feet.

$$

LSZ142-143-041615-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
311 AM CDT Fri Jul 4 2025

.TODAY...Northeast wind 5 to 10 knots. Chance of thunderstorms
early in the morning. Chance of rain showers in the morning.
Slight chance of thunderstorms late in the morning. Waves 1 to
2 feet.
.TONIGHT...East wind 5 to 10 knots becoming northeast late in the
evening, then becoming east after midnight becoming southwest
early in the morning. Slight chance of showers and thunderstorms
in the evening, then rain showers likely and chance of
thunderstorms after midnight. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots becoming northwest late
in the afternoon. Rain showers and chance of thunderstorms. Waves
1 foot or less.
.SATURDAY NIGHT...North wind 5 to 10 knots. Gusts up to 20 knots
until early morning. Rain showers and chance of thunderstorms in
the evening. Waves 1 foot or less.

$$

LSZ144-145-041615-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
311 AM CDT Fri Jul 4 2025

.TODAY...Northeast wind 5 to 10 knots becoming east with gusts to
around 20 knots late in the afternoon. Slight chance of showers
and thunderstorms early in the morning. Waves 1 to 2 feet.
.TONIGHT...Southeast wind 5 to 10 knots with gusts to around
20 knots becoming southwest early in the morning. Slight chance
of showers and thunderstorms in the evening, then chance of
showers and thunderstorms after midnight. Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots becoming west with gusts
to around 20 knots late in the afternoon. Showers and chance of
thunderstorms. Waves 1 foot or less.
.SATURDAY NIGHT...Northwest wind 10 to 15 knots. Gusts up to
20 knots in the evening. Rain showers and chance of thunderstorms
in the evening. Waves 1 foot or less.

$$

LSZ146-041615-
Port Wing to Sand Island WI-
311 AM CDT Fri Jul 4 2025

.TODAY...East wind 5 to 10 knots. Chance of showers and
thunderstorms early in the morning, then slight chance of showers
and thunderstorms late in the morning. Waves 1 to 2 feet.
.TONIGHT...East wind 5 to 10 knots becoming southwest after
midnight. Slight chance of showers and thunderstorms in the
evening, then chance of showers and thunderstorms after midnight.
Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots becoming west late in
the afternoon. Rain showers likely in the morning. Chance of
thunderstorms through the day. Rain showers in the afternoon.
Waves 1 foot or less.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots. Rain showers and
chance of thunderstorms in the evening. Waves 1 foot or less.

$$

LSZ147-041615-
Sand Island to Bayfield WI-
311 AM CDT Fri Jul 4 2025

.TODAY...Southeast wind 5 to 10 knots. Chance of rain showers
early in the morning. Chance of thunderstorms in the morning.
Slight chance of rain showers late in the morning. Waves 1 foot
or less.
.TONIGHT...South wind 5 to 10 knots becoming southwest early in
the morning. Chance of showers and thunderstorms after midnight.
Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots becoming west late in
the afternoon. Rain showers and chance of thunderstorms. Waves
1 foot or less.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots. Rain showers and
chance of thunderstorms in the evening, then chance of rain
showers after midnight. Waves 1 foot or less.

$$

LSZ150-041615-
Outer Apostle Islands Beyond 5 NM from Mainland-
311 AM CDT Fri Jul 4 2025

.TODAY...Southeast wind 5 to 10 knots. Chance of showers and
thunderstorms in the morning. Waves 1 to 2 feet.
.TONIGHT...South wind 10 to 15 knots. Chance of showers and
thunderstorms after midnight. Waves 1 to 2 feet.
.SATURDAY...Southwest wind 10 to 15 knots becoming west 5 to
10 knots late in the afternoon. Rain showers likely in the
morning. Chance of thunderstorms through the day. Rain showers in
the afternoon. Waves 1 to 2 feet.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots. Rain showers and
chance of thunderstorms in the evening, then slight chance of
rain showers after midnight. Waves 1 foot or less.

$$

LSZ121-041615-
Chequamegon Bay-Bayfield to Oak Point WI-
311 AM CDT Fri Jul 4 2025

.TODAY...South wind 10 to 15 knots. Gusts up to 20 knots late in
the afternoon. Chance of showers and thunderstorms early in the
morning, then slight chance of showers and thunderstorms late in
the morning. Waves 1 foot or less.
.TONIGHT...South wind 10 to 15 knots with gusts to around
20 knots becoming southwest 5 to 10 knots in the late evening and
overnight. Chance of showers and thunderstorms after midnight.
Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots becoming west late in
the afternoon. Showers likely in the morning. Chance of
thunderstorms through the day. Showers in the afternoon. Waves
1 foot or less.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots. Rain showers and
chance of thunderstorms in the evening, then chance of rain
showers after midnight. Waves 1 foot or less.

$$

LSZ148-041615-
Oak Point to Saxon Harbor WI-
311 AM CDT Fri Jul 4 2025

.TODAY...South wind 5 to 10 knots. Gusts up to 20 knots late in
the afternoon. Chance of showers and thunderstorms early in the
morning, then slight chance of showers and thunderstorms late in
the morning. Waves 1 foot or less.
.TONIGHT...South wind 5 to 10 knots with gusts to around
20 knots. Chance of showers and thunderstorms after midnight.
Waves 1 foot or less.
.SATURDAY...Southwest wind 5 to 10 knots. Showers likely in the
morning. Chance of thunderstorms through the day. Showers in the
afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots. Rain showers and
chance of thunderstorms in the evening, then slight chance of
rain showers after midnight. Waves 1 foot or less.

$$

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

Rothstein