FZUS53 KDLH 101823
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
122 PM CDT Wed Jun 10 2026

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.

LSZ140-102200-
Grand Portage to Grand Marais MN-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...Northeast wind 10 to 15 knots with gusts to
around 20 knots. Areas of dense fog through the day. Slight
chance of showers and thunderstorms early in the afternoon.
Chance of showers and thunderstorms late. Waves 1 to 3 feet.
.TONIGHT...East wind 5 to 10 knots becoming south late in the
evening, then becoming southwest 10 to 15 knots with gusts to
around 20 knots after midnight. Areas of dense fog in the
evening. Widespread dense fog after midnight. Chance of showers
and thunderstorms through the night. Waves 1 to 3 feet.
.THURSDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon.
Widespread dense fog in the morning. Waves 4 to 6 feet. Waves
occasionally to 7 feet. A small craft advisory may be needed.
.THURSDAY NIGHT...Southwest wind 15 to 20 knots. Gusts up to
25 knots decreasing to 20 knots in the late evening and
overnight. Chance of rain showers in the evening, then slight
chance of rain showers after midnight. Waves 3 to 5 feet. A small
craft advisory may be needed.

$$

LSZ141-102200-
Grand Marais to Taconite Harbor MN-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...East wind 10 to 15 knots with gusts to around
20 knots. Areas of dense fog through the day. Slight chance of
showers and thunderstorms early in the afternoon. Rain showers
and chance of thunderstorms late. Waves 1 to 3 feet.
.TONIGHT...East wind 5 to 10 knots becoming southwest in the late
evening and early morning, then becoming southwest 5 to 10 knots
early in the morning. Areas of dense fog in the evening, then
widespread dense fog after midnight. Chance of showers and
thunderstorms in the evening, then slight chance of thunderstorms
after midnight. Waves 1 to 3 feet.
.THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
in the late morning and afternoon. Widespread dense fog in the
morning. Chance of rain showers in the afternoon. Waves 1 to
2 feet building to 1 to 3 feet in the afternoon.
.THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to
20 knots early in the evening then 20 knots after midnight.
Chance of rain showers in the evening. Waves 1 to 2 feet.

$$

LSZ142-102200-
Taconite Harbor to Silver Bay Harbor MN-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...Northeast wind 5 to 10 knots. Gusts up to
20 knots early in the afternoon. Areas of dense fog through the
day. Slight chance of showers and thunderstorms early in the
afternoon. Rain showers likely and chance of thunderstorms late.
Waves 1 to 2 feet.
.TONIGHT...Northeast wind 5 knots becoming west late in the
evening, then becoming southwest after midnight. Showers and
thunderstorms likely in the evening. Areas of dense fog in the
evening, then widespread dense fog after midnight. Waves 1 to
2 feet.
.THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in
the late morning and afternoon. Widespread dense fog in the
morning. Chance of rain showers in the afternoon. Waves 1 to
2 feet.
.THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to
20 knots early in the evening then 20 knots after midnight.
Chance of rain showers in the evening. Waves 1 foot or less.

$$

LSZ143-102200-
Silver Bay Harbor to Two Harbors MN-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...Northeast wind 5 to 10 knots. Gusts up to
20 knots early in the afternoon. Areas of dense fog through the
day. Chance of showers and thunderstorms early in the afternoon.
Rain showers and thunderstorms likely late. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 5 knots becoming southwest with gusts
to around 20 knots in the late evening and overnight. Showers and
thunderstorms likely in the evening. Areas of dense fog in the
evening, then widespread dense fog after midnight. Waves 1 to
2 feet.
.THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in
the late morning and afternoon. Widespread dense fog in the
morning. Slight chance of showers and thunderstorms in the
afternoon. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to
20 knots early in the morning. Chance of rain showers in the
evening. Waves 1 to 2 feet.

$$

LSZ144-102200-
Two Harbors to Duluth MN-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...Northeast wind 5 to 10 knots with gusts to
around 20 knots. Areas of dense fog through the day. Chance of
thunderstorms and slight chance of rain showers early in the
afternoon. Rain showers and thunderstorms likely late. Waves 1 to
2 feet.
.TONIGHT...East wind 5 knots becoming southwest 10 to 15 knots
with gusts to around 20 knots in the late evening and overnight.
Showers and thunderstorms likely in the evening. Areas of dense
fog in the evening, then widespread dense fog after midnight.
Waves 1 to 2 feet.
.THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
in the afternoon. Widespread dense fog in the morning. Chance of
rain showers and slight chance of thunderstorms in the afternoon.
Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of rain showers and slight chance of
thunderstorms in the evening. Waves 1 to 2 feet.

$$

LSZ145-102200-
Duluth MN to Port Wing WI-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...Northeast wind 5 to 10 knots with gusts to
around 20 knots. Areas of dense fog through the day. Slight
chance of rain showers early in the afternoon. Chance of
thunderstorms through the day. Rain showers likely late. Waves
1 to 2 feet.
.TONIGHT...East wind 5 to 10 knots becoming southwest 10 to
15 knots with gusts to around 20 knots in the late evening and
overnight. Rain showers likely and chance of thunderstorms in the
evening. Areas of dense fog in the evening, then widespread dense
fog after midnight. Waves 1 to 3 feet.
.THURSDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
in the late morning and afternoon. Widespread dense fog in the
morning. Chance of rain showers and slight chance of
thunderstorms in the afternoon. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of rain showers and slight chance of
thunderstorms in the evening. Waves 1 to 3 feet.

$$

LSZ146-102200-
Port Wing to Sand Island WI-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...Northeast wind 5 to 10 knots. Patchy dense fog
early in the afternoon. Chance of showers and thunderstorms early
in the afternoon, then rain showers with thunderstorms likely
late. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 5 knots becoming southwest 10 to
15 knots with gusts to around 20 knots in the late evening and
early morning, then easing to 10 knots with gusts to around
20 knots early in the morning. Showers and thunderstorms likely
in the evening. Areas of dense fog in the evening, then
widespread dense fog after midnight. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots
early in the morning then 20 knots in the afternoon. Widespread
dense fog in the morning. Chance of rain showers and slight
chance of thunderstorms in the afternoon. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of rain showers in the evening. Waves
1 to 3 feet.

$$

LSZ147-102200-
Sand Island to Bayfield WI-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...East wind 5 to 10 knots. Slight chance of
showers and thunderstorms early in the afternoon, then rain
showers and chance of thunderstorms late. Waves 1 to 2 feet.
.TONIGHT...Southeast wind 5 to 10 knots becoming southwest 10 to
15 knots with gusts to around 25 knots in the late evening and
overnight. Chance of showers and thunderstorms in the evening.
Areas of dense fog in the evening, then widespread dense fog
after midnight. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots
early in the morning. Areas of dense fog in the morning. Chance
of rain showers in the afternoon. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to
20 knots in the late evening and overnight. Slight chance of rain
showers in the evening. Waves 1 to 2 feet.

$$

LSZ150-102200-
Outer Apostle Islands Beyond 5 NM from Mainland-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...East wind 5 to 10 knots. Patchy dense fog early
in the afternoon. Slight chance of showers and thunderstorms
early in the afternoon, then rain showers likely and chance of
thunderstorms late. Waves 1 to 2 feet.
.TONIGHT...South wind 5 to 10 knots becoming southwest 10 to
15 knots with gusts to around 25 knots in the late evening and
overnight. Chance of showers and thunderstorms in the evening.
Areas of dense fog through the night. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots
early in the morning then 20 knots in the afternoon. Areas of
dense fog in the morning. Chance of rain showers in the
afternoon. Waves 1 to 2 feet.
.THURSDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots increasing to 25 knots after midnight. Chance of rain
showers in the evening. Waves 1 to 2 feet.

$$

LSZ121-102200-
Chequamegon Bay-Bayfield to Oak Point WI-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...South wind 5 to 10 knots. Chance of showers and
thunderstorms early in the afternoon, then showers with
thunderstorms likely late. Waves 1 foot or less.
.TONIGHT...South wind 5 to 10 knots becoming southwest with gusts
to around 20 knots in the late evening and overnight. Showers and
thunderstorms likely in the evening. Patchy dense fog in the
evening, then areas of dense fog after midnight. Waves 1 foot or
less.
.THURSDAY...Southwest wind 10 to 15 knots easing to 10 knots late
in the afternoon. Gusts up to 20 knots early in the afternoon.
Areas of dense fog in the morning. Chance of rain showers and
slight chance of thunderstorms in the afternoon. Waves 1 foot or
less.
.THURSDAY NIGHT...Southwest wind 5 to 10 knots. Gusts up to
20 knots in the late evening and overnight. Chance of rain
showers in the evening. Waves 1 foot or less.

$$

LSZ148-102200-
Oak Point to Saxon Harbor WI-
122 PM CDT Wed Jun 10 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

.REST OF TODAY...Southeast wind 5 to 10 knots. Gusts up to
20 knots late. Chance of showers and thunderstorms early in the
afternoon, then showers with thunderstorms likely late. Waves
1 foot or less.
.TONIGHT...Southwest wind 5 to 10 knots with gusts to around
20 knots. Showers and thunderstorms likely in the evening. Patchy
dense fog in the evening, then areas of dense fog after midnight.
Waves 1 to 2 feet.
.THURSDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in
the afternoon. Areas of dense fog in the morning. Chance of rain
showers and slight chance of thunderstorms in the afternoon.
Waves 1 foot or less.
.THURSDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots in the late evening and overnight. Chance of rain
showers in the evening. Waves 1 to 2 feet.

$$

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

WFO DLH