837
FZUS53 KDLH 240230
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
930 PM CDT Wed Jul 23 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.

LSZ140-141-241015-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
930 PM CDT Wed Jul 23 2025

.REST OF TONIGHT...West wind 5 knots becoming north toward
daybreak. Patchy fog through the night. Chance of showers and
thunderstorms late in the evening. Slight chance of showers and
thunderstorms after midnight. Waves 1 foot or less.
.THURSDAY...North wind 5 knots becoming northeast late in the
morning, then becoming southwest in the afternoon. Patchy fog in
the morning. Areas of smoke through the day. Waves 1 foot or
less.
.THURSDAY NIGHT...West wind 5 to 10 knots becoming northwest
after midnight. Partly cloudy. Waves 1 foot or less.
.FRIDAY...Northwest wind 5 knots becoming south in the late
morning and afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ142-143-241015-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
930 PM CDT Wed Jul 23 2025

.REST OF TONIGHT...Southwest wind 5 knots becoming northwest
after midnight. Chance of showers and thunderstorms late in the
evening, then slight chance of showers and thunderstorms after
midnight. Patchy fog after midnight. Waves 1 foot or less.
.THURSDAY...North wind 5 knots becoming east late in the morning,
then becoming southwest in the afternoon. Slight chance of
showers in the morning. Patchy fog in the morning. Areas of smoke
in the afternoon. Waves 1 foot or less.
.THURSDAY NIGHT...Variable winds 10 knots or less. Areas of smoke
in the evening. Waves 1 foot or less.
.FRIDAY...Variable winds 10 knots or less becoming southeast
5 knots in the late morning and afternoon. Mostly sunny. Waves
1 foot or less.

$$

LSZ144-145-241015-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
930 PM CDT Wed Jul 23 2025

.REST OF TONIGHT...West wind 5 to 10 knots. Patchy fog through
the night. Chance of showers and thunderstorms late in the
evening. Slight chance of showers and thunderstorms after
midnight. Waves 1 foot or less.
.THURSDAY...Northwest wind 5 knots becoming east in the late
morning and early afternoon, then becoming southeast late in the
afternoon. Patchy fog in the morning, then areas of smoke in the
afternoon. Waves 1 foot or less.
.THURSDAY NIGHT...West wind 5 knots until early morning becoming
variable 10 knots or less. Areas of smoke in the evening. Waves
1 foot or less.
.FRIDAY...Variable winds 10 knots or less becoming east 5 knots
in the late morning and afternoon. Mostly sunny. Waves 1 foot or
less.

$$

LSZ146-241015-
Port Wing to Sand Island WI-
930 PM CDT Wed Jul 23 2025

.REST OF TONIGHT...Southwest wind 5 to 10 knots becoming west
after midnight. Patchy fog through the night. Chance of showers
and thunderstorms late in the evening. Slight chance of showers
and thunderstorms after midnight. Waves 1 foot or less.
.THURSDAY...Northwest wind 5 knots becoming southwest late in the
afternoon. Slight chance of showers in the morning. Patchy fog in
the morning. Areas of smoke in the afternoon. Waves 1 foot or
less.
.THURSDAY NIGHT...Variable winds 10 knots or less. Areas of smoke
in the evening. Waves 1 foot or less.
.FRIDAY...Variable winds 10 knots or less becoming northeast
5 knots in the afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ147-241015-
Sand Island to Bayfield WI-
930 PM CDT Wed Jul 23 2025

.REST OF TONIGHT...Southwest wind 5 to 10 knots becoming west
after midnight. Patchy fog through the night. Chance of
thunderstorms late in the evening. Chance of showers through the
night. Slight chance of thunderstorms after midnight. Waves
1 foot or less.
.THURSDAY...North wind 5 knots becoming southeast late in the
afternoon. Slight chance of showers in the morning. Patchy fog in
the morning. Areas of smoke in the afternoon. Waves 1 foot or
less.
.THURSDAY NIGHT...South wind 5 knots early in the evening
becoming variable 10 knots or less. Areas of smoke in the
evening. Waves 1 foot or less.
.FRIDAY...Variable winds 10 knots or less becoming west 5 knots
late in the morning, then becoming northeast in the afternoon.
Mostly sunny. Waves 1 foot or less.

$$

LSZ150-241015-
Outer Apostle Islands Beyond 5 NM from Mainland-
930 PM CDT Wed Jul 23 2025

.REST OF TONIGHT...West wind 5 to 10 knots easing to 5 knots
toward daybreak. Patchy fog through the night. Chance of
thunderstorms late in the evening. Chance of showers through the
night. Slight chance of thunderstorms after midnight. Waves
1 foot or less.
.THURSDAY...North wind 5 knots becoming west early in the
afternoon, then becoming south late in the afternoon. Slight
chance of showers in the morning. Patchy fog in the morning.
Areas of smoke in the afternoon. Waves 1 foot or less.
.THURSDAY NIGHT...South wind 5 knots becoming southwest late in
the evening, then becoming variable 10 knots or less after
midnight. Partly cloudy. Waves 1 foot or less.
.FRIDAY...Southwest wind 5 knots becoming east in the afternoon.
Mostly sunny. Waves 1 foot or less.

$$

LSZ121-241015-
Chequamegon Bay-Bayfield to Oak Point WI-
930 PM CDT Wed Jul 23 2025

.REST OF TONIGHT...West wind 5 knots. Patchy fog through the
night. Chance of thunderstorms in the late evening and early
morning. Chance of showers through the night. Slight chance of
thunderstorms toward daybreak. Waves 1 foot or less.
.THURSDAY...Northwest wind 5 knots becoming east in the
afternoon. Slight chance of showers in the morning. Patchy fog in
the morning. Areas of smoke in the afternoon. Waves 1 foot or
less.
.THURSDAY NIGHT...East wind 5 knots early in the evening becoming
variable 10 knots or less. Areas of smoke in the evening. Waves
1 foot or less.
.FRIDAY...Variable winds 10 knots or less becoming southeast
5 knots late in the morning, then becoming northeast in the
afternoon. Mostly sunny. Waves 1 foot or less.

$$

LSZ148-241015-
Oak Point to Saxon Harbor WI-
930 PM CDT Wed Jul 23 2025

.REST OF TONIGHT...West wind 5 to 10 knots. Chance of
thunderstorms in the late evening and early morning. Chance of
showers through the night. Slight chance of thunderstorms toward
daybreak. Patchy fog after midnight. Waves 1 foot or less.
.THURSDAY...Northwest wind 5 knots becoming east late in the
afternoon. Patchy fog in the morning. Chance of showers in the
morning. Waves 1 foot or less.
.THURSDAY NIGHT...Southeast wind 5 knots early in the evening
becoming variable 10 knots or less. Partly cloudy. Waves 1 foot
or less.
.FRIDAY...Variable winds 10 knots or less becoming south 5 knots
late in the morning, then becoming northeast in the afternoon.
Mostly sunny. Waves 1 foot or less.

$$

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

Britt