094
FZUS53 KDLH 090241
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
941 PM CDT Fri Aug 8 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.

LSZ140-141-091015-
Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
941 PM CDT Fri Aug 8 2025

.REST OF TONIGHT...Northeast wind 10 to 15 knots becoming south
5 to 10 knots toward daybreak. Chance of showers in the late
evening and early morning. Chance of thunderstorms through the
night. Showers likely toward daybreak. Waves 1 to 2 feet.
.SATURDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
in the afternoon. Chance of thunderstorms in the morning. Chance
of showers through the day. Slight chance of thunderstorms in the
afternoon. Waves 1 to 3 feet.
.SATURDAY NIGHT...Southwest wind 10 to 15 knots. Gusts up to
20 knots in the evening. Slight chance of showers in the evening.
Waves 1 to 2 feet.
.SUNDAY...Southwest wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots in the late morning and afternoon. Mostly
sunny. Waves 1 to 2 feet building to 2 to 4 feet in the late
morning and afternoon. A small craft advisory may be needed.

$$

LSZ142-143-091015-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-
941 PM CDT Fri Aug 8 2025

.REST OF TONIGHT...Northeast wind 5 to 10 knots becoming south
10 to 15 knots toward daybreak. Chance of showers and
thunderstorms late in the evening, then showers and thunderstorms
likely after midnight. Waves 1 to 2 feet.
.SATURDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
early in the afternoon. Chance of showers and thunderstorms in
the morning, then slight chance of showers in the afternoon.
Waves 1 to 2 feet.
.SATURDAY NIGHT...Southwest wind 5 to 10 knots. Mostly clear.
Waves 1 to 2 feet.
.SUNDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in
the late morning and afternoon. Sunny. Waves 1 to 2 feet.

$$

LSZ144-145-091015-
Two Harbors to Duluth MN-Duluth MN to Port Wing WI-
941 PM CDT Fri Aug 8 2025

...SEVERE THUNDERSTORM WATCH 578 IN EFFECT UNTIL 4 AM CDT
SATURDAY...

.REST OF TONIGHT...East wind 10 to 15 knots with gusts to around
20 knots becoming south toward daybreak. Chance of showers and
thunderstorms late in the evening, then showers and thunderstorms
likely after midnight. Waves 1 to 2 feet.
.SATURDAY...Southwest wind 10 to 15 knots. Chance of showers and
thunderstorms in the morning. Slight chance of showers in the
afternoon. Waves 1 to 2 feet.
.SATURDAY NIGHT...Southwest wind 5 to 10 knots. Mostly clear.
Waves 1 foot or less.
.SUNDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots in
the afternoon. Sunny. Waves 1 to 2 feet.

$$

LSZ146-091015-
Port Wing to Sand Island WI-
941 PM CDT Fri Aug 8 2025

.REST OF TONIGHT...Southeast wind 10 to 15 knots becoming south
15 to 20 knots toward daybreak. Chance of showers and
thunderstorms in the late evening and early morning. Showers and
thunderstorms likely toward daybreak. Waves 1 to 2 feet.
.SATURDAY...Southwest wind 10 to 15 knots easing to 5 to 10 knots
late in the afternoon. Chance of showers and thunderstorms in the
morning, then slight chance of showers in the afternoon. Waves
1 to 2 feet.
.SATURDAY NIGHT...Southwest wind 5 to 10 knots. Partly cloudy.
Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots. Gusts up to 20 knots in
the afternoon. Mostly sunny. Waves 1 to 2 feet.

$$

LSZ147-091015-
Sand Island to Bayfield WI-
941 PM CDT Fri Aug 8 2025

.REST OF TONIGHT...South wind 15 to 20 knots. Chance of showers
in the late evening and early morning. Chance of thunderstorms
through the night. Showers likely toward daybreak. Waves 1 to
2 feet.
.SATURDAY...Southwest wind 10 to 15 knots. Gusts up to 20 knots
early in the morning. Showers likely and chance of thunderstorms
in the morning, then slight chance of showers in the afternoon.
Waves 1 to 2 feet.
.SATURDAY NIGHT...Southwest wind 5 to 10 knots. Slight chance of
showers in the evening. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.

$$

LSZ150-091015-
Outer Apostle Islands Beyond 5 NM from Mainland-
941 PM CDT Fri Aug 8 2025

.REST OF TONIGHT...South wind 15 to 20 knots. Slight chance of
showers and thunderstorms late in the evening, then showers
likely and chance of thunderstorms after midnight. Waves 1 to
3 feet.
.SATURDAY...Southwest wind 15 to 20 knots. Showers likely and
chance of thunderstorms in the morning, then chance of showers in
the afternoon. Waves 1 to 3 feet subsiding to 1 to 2 feet in the
late morning and afternoon.
.SATURDAY NIGHT...Southwest wind 5 to 10 knots. Slight chance of
showers in the evening. Waves 1 to 2 feet.
.SUNDAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves 1 to
2 feet.

$$

LSZ121-091015-
Chequamegon Bay-Bayfield to Oak Point WI-
941 PM CDT Fri Aug 8 2025

.REST OF TONIGHT...South wind 5 to 10 knots. Slight chance of
showers and thunderstorms late in the evening, then showers
likely and chance of thunderstorms after midnight. Waves 1 foot
or less.
.SATURDAY...South wind 5 to 10 knots becoming southwest with
gusts to around 20 knots in the late morning and afternoon.
Showers likely and chance of thunderstorms in the morning, then
chance of showers in the afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...Southwest wind 5 to 10 knots. Slight chance of
showers. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.

$$

LSZ148-091015-
Oak Point to Saxon Harbor WI-
941 PM CDT Fri Aug 8 2025

.REST OF TONIGHT...South wind 10 to 15 knots. Gusts up to
20 knots after midnight. Slight chance of showers and
thunderstorms late in the evening, then showers likely and chance
of thunderstorms after midnight. Waves 1 to 2 feet.
.SATURDAY...South wind 10 to 15 knots with gusts to around
20 knots becoming southwest with gusts to around 20 knots late in
the morning, then rising to 10 to 15 knots with gusts to around
20 knots early in the afternoon easing to 10 knots late in the
afternoon. Showers likely and chance of thunderstorms in the
morning, then chance of showers and slight chance of
thunderstorms in the afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...Southwest wind 5 to 10 knots. Slight chance of
showers through the night. Waves 1 foot or less.
.SUNDAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves
1 foot or less.

$$

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

Levens