986
FZUS53 KDLH 200317
NSHDLH

Nearshore Marine Forecast
National Weather Service Duluth MN
917 PM CST Wed Nov 19 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.

LSZ140-201100-
Grand Portage to Grand Marais MN-
917 PM CST Wed Nov 19 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM CST THURSDAY...

.REST OF TONIGHT...Southwest wind 15 to 20 knots with gusts to
around 25 knots. Chance of drizzle in the late evening and early
morning, then drizzle likely toward daybreak. Waves 3 to 5 feet.
.THURSDAY...Southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 10 to 15 knots with gusts to around
20 knots in the afternoon. Patchy fog in the morning. Chance of
drizzle in the morning. Waves 3 to 5 feet subsiding to 1 to
3 feet late in the afternoon.
.THURSDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots after midnight. Partly cloudy. Waves 1 to
2 feet.
.FRIDAY...Northwest wind 10 to 15 knots with gusts to around
20 knots. Mostly sunny. Waves 1 to 2 feet.

$$

LSZ141-201100-
Grand Marais to Taconite Harbor MN-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of drizzle late in the evening, then rain
showers and drizzle likely after midnight. Waves 1 to 3 feet.
.THURSDAY...West wind 10 to 15 knots. Gusts up to 20 knots.
Patchy fog in the morning. Chance of drizzle in the morning.
Waves 1 to 3 feet.
.THURSDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
increasing to 25 knots after midnight. Partly cloudy. Waves 1 to
2 feet.
.FRIDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots
early in the morning. Sunny. Waves 1 foot or less.

$$

LSZ142-201100-
Taconite Harbor to Silver Bay Harbor MN-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of drizzle through the night. Patchy fog
toward daybreak. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 5 to 10 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Patchy fog in the morning. Chance of drizzle in the
morning. Waves 1 to 2 feet.
.THURSDAY NIGHT...West wind 5 to 10 knots. Gusts up to 20 knots
in the late evening and overnight. Partly cloudy. Waves 1 foot or
less.
.FRIDAY...Northwest wind 5 to 10 knots. Gusts up to 20 knots
early in the morning. Sunny. Waves 1 foot or less.

$$

LSZ143-201100-
Silver Bay Harbor to Two Harbors MN-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of drizzle. Waves 1 to 2 feet.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots. Patchy fog in the morning. Chance of drizzle in the
morning. Waves 1 to 2 feet.
.THURSDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
in the late evening and overnight. Partly cloudy. Waves 1 to
2 feet.
.FRIDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or
less.

$$

LSZ144-201100-
Two Harbors to Duluth MN-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of drizzle through the night. Patchy fog
toward daybreak. Waves 1 to 2 feet.
.THURSDAY...West wind 10 to 15 knots with gusts to around
20 knots. Patchy fog in the morning. Chance of drizzle in the
morning. Waves 1 to 2 feet.
.THURSDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
in the late evening and overnight. Partly cloudy. Waves 1 to
2 feet.
.FRIDAY...Northwest wind 5 to 10 knots. Sunny. Waves 1 foot or
less.

$$

LSZ145-201100-
Duluth MN to Port Wing WI-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of drizzle through the night. Patchy fog
toward daybreak. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 10 to 15 knots becoming west in the
afternoon. Gusts up to 20 knots. Patchy fog in the morning.
Chance of drizzle in the morning. Waves 1 to 2 feet.
.THURSDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
in the late evening and overnight. Partly cloudy. Waves 1 to
2 feet.
.FRIDAY...West wind 5 to 10 knots. Sunny. Waves 1 to 2 feet.

$$

LSZ146-201100-
Port Wing to Sand Island WI-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of drizzle. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 10 to 15 knots becoming west in the
afternoon. Gusts up to 20 knots. Patchy fog in the morning.
Chance of drizzle in the morning. Waves 1 to 3 feet.
.THURSDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Mostly cloudy in the evening then becoming partly
cloudy. Waves 1 to 3 feet.
.FRIDAY...West wind 10 to 15 knots. Gusts up to 20 knots early in
the morning. Sunny. Waves 1 to 2 feet.

$$

LSZ147-201100-
Sand Island to Bayfield WI-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Chance of drizzle. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 10 to 15 knots becoming west in the
afternoon. Gusts up to 20 knots. Patchy fog in the morning.
Chance of drizzle in the morning. Waves 1 to 3 feet.
.THURSDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Partly cloudy. Waves 1 to 3 feet.
.FRIDAY...Northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots late in the afternoon. Sunny. Waves
1 to 3 feet.

$$

LSZ150-201100-
Outer Apostle Islands Beyond 5 NM from Mainland-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Slight chance of drizzle late in the evening,
then chance of drizzle after midnight. Waves 1 to 3 feet.
.THURSDAY...Southwest wind 15 to 20 knots becoming west 10 to
15 knots in the afternoon. Patchy fog in the morning. Chance of
drizzle in the morning. Waves 1 to 3 feet.
.THURSDAY NIGHT...West wind 15 to 20 knots. Gusts up to 20 knots
increasing to 25 knots after midnight. Partly cloudy. Waves 1 to
3 feet building to 2 to 4 feet in the late evening and overnight.
A small craft advisory may be needed.
.FRIDAY...Northwest wind 10 to 15 knots. Gusts up to 20 knots in
the morning. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet in
the afternoon.

$$

LSZ121-201100-
Chequamegon Bay-Bayfield to Oak Point WI-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 5 to 10 knots with gusts to
around 20 knots. Slight chance of drizzle late in the evening,
then chance of drizzle after midnight. Waves 1 foot or less.
.THURSDAY...Southwest wind 5 to 10 knots with gusts to around
20 knots becoming west with gusts to around 20 knots in the
afternoon. Chance of drizzle in the morning. Waves 1 foot or
less.
.THURSDAY NIGHT...West wind 10 to 15 knots. Gusts up to 20 knots
after midnight. Partly cloudy. Waves 1 foot or less.
.FRIDAY...West wind 5 to 10 knots. Sunny. Waves 1 foot or less.

$$

LSZ148-201100-
Oak Point to Saxon Harbor WI-
917 PM CST Wed Nov 19 2025

.REST OF TONIGHT...Southwest wind 10 to 15 knots with gusts to
around 20 knots. Slight chance of drizzle late in the evening,
then chance of drizzle after midnight. Waves 1 to 2 feet.
.THURSDAY...Southwest wind 10 to 15 knots becoming west in the
afternoon. Gusts up to 20 knots. Chance of drizzle in the
morning. Waves 1 to 2 feet.
.THURSDAY NIGHT...West wind 10 to 15 knots with gusts to around
20 knots. Mostly cloudy in the evening then becoming partly
cloudy. Waves 1 to 2 feet.
.FRIDAY...West wind 10 to 15 knots becoming northwest 5 to
10 knots in the late morning and afternoon. Mostly sunny. Waves
1 to 2 feet.

$$

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

WFO DLH