fzus53 kdlh 180601
nshdlh
expires:202512181700;;780082

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz148-181700-
oak point to saxon harbor wi-
1201 am cst thu dec 18 2025

...gale warning in effect until 4 am cst early this morning...
...gale warning in effect from this afternoon through late
tonight...
...heavy freezing spray warning in effect from this evening
through late tonight...

.today...southwest wind 15 to 20 knots with gusts to around
25 knots becoming northwest 20 to 25 knots with gales to around
35 knots late in the afternoon. chance of rain until late
afternoon, then snow likely late in the afternoon. waves 1 to
3 feet building to 4 to 6 feet late in the afternoon. waves
occasionally to 8 feet. 
.tonight...northwest wind up to 30 knots. gales up to 40 knots
decreasing to 30 knots early in the morning. heavy freezing spray
through the night. snow in the evening. chance of snow after
midnight. waves 6 to 9 feet. waves occasionally to 12 feet. 
.friday...northwest wind 10 to 15 knots with gusts to around
20 knots becoming southwest 5 knots early in the afternoon, then
becoming south late in the afternoon. chance of snow in the
afternoon. waves 3 to 5 feet subsiding to 1 to 3 feet in the
afternoon. waves occasionally to 7 feet. a small craft advisory
may be needed. 
.friday night...south wind 15 to 20 knots with gusts to around
25 knots becoming southwest with gusts to around 25 knots early
in the morning. chance of snow. waves 1 to 3 feet. 

$$

fzus53 kdlh 180601
nshdlh
expires:202512181700;;780078

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz146-181700-
port wing to sand island wi-
1201 am cst thu dec 18 2025

...small craft advisory in effect through this afternoon...
...gale warning in effect from this afternoon through late
tonight...
...heavy freezing spray warning in effect from this evening
through late tonight...

.today...southwest wind 15 to 20 knots with gusts to around
25 knots becoming west 20 to 25 knots with gusts to around
30 knots early in the afternoon, then becoming northwest up to
30 knots with gales to around 45 knots late in the afternoon.
chance of rain until late afternoon. snow likely in the
afternoon. freezing spray late in the afternoon. waves 3 to
5 feet building to 4 to 7 feet late in the afternoon. waves
occasionally to 9 feet. 
.tonight...north wind up to 30 knots with storm force gusts to
around 50 knots becoming northwest 15 to 20 knots with gusts to
around 30 knots early in the morning. heavy freezing spray
through the night. snow likely in the evening. slight chance of
snow after midnight. waves 5 to 8 feet subsiding to 3 to 5 feet
early in the morning. waves occasionally to 10 feet. a storm
warning may be needed. 
.friday...northwest wind 5 to 10 knots with gusts to around
20 knots becoming southwest early in the afternoon, then becoming
southeast late in the afternoon. chance of snow in the afternoon.
waves 1 to 3 feet subsiding to 1 to 2 feet in the late morning
and afternoon. 
.friday night...south wind 10 to 15 knots with gusts to around
20 knots becoming southwest 15 to 20 knots with gusts to around
25 knots after midnight. chance of snow. waves 1 to 3 feet. 

$$

fzus53 kdlh 180601
nshdlh
expires:202512181700;;780079

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz147-181700-
sand island to bayfield wi-
1201 am cst thu dec 18 2025

...small craft advisory in effect through this afternoon...
...gale warning in effect from this afternoon through late
tonight...
...heavy freezing spray warning in effect from this evening
through late tonight...

.today...southwest wind 15 to 20 knots becoming northwest 20 to
25 knots with gales to around 40 knots late in the afternoon.
chance of rain until late afternoon. chance of snow early in the
afternoon, then snow likely late in the afternoon. waves 1 to
2 feet building to 4 to 7 feet. waves occasionally to 9 feet. 
.tonight...north wind 20 to 25 knots. gales up to 40 knots
decreasing to 30 knots. heavy freezing spray through the night.
snow in the evening. chance of snow, light freezing rain and
light freezing drizzle after midnight. waves 5 to 8 feet
subsiding to 3 to 5 feet early in the morning. waves occasionally
to 10 feet. 
.friday...northwest wind 10 to 15 knots with gusts to around
20 knots easing to 5 knots late in the morning, then becoming
southwest early in the afternoon becoming south late in the
afternoon. chance of snow in the afternoon. waves 1 to 3 feet
subsiding to 1 to 2 feet in the late morning and afternoon. 
.friday night...south wind 10 to 15 knots becoming southwest
early in the morning. gusts up to 25 knots. chance of snow. waves
1 to 2 feet. 

$$

fzus53 kdlh 180601
nshdlh
expires:202512181700;;780081

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz121-181700-
chequamegon bay-bayfield to oak point wi-
1201 am cst thu dec 18 2025

...small craft advisory in effect through this afternoon...
...gale warning in effect from this afternoon through late
tonight...
...heavy freezing spray warning in effect from this evening
through late tonight...

.today...southwest wind 15 to 20 knots becoming northwest 20 to
25 knots with gales to around 35 knots late in the afternoon.
chance of rain until late afternoon. snow likely in the
afternoon. waves 1 to 2 feet. 
.tonight...northwest wind 20 to 25 knots. gales up to 40 knots
decreasing to 25 knots. snow in the evening, then chance of snow
after midnight. waves 1 to 3 feet. 
.friday...northwest wind 10 to 15 knots with gusts to around
20 knots becoming west 5 knots late in the morning, then becoming
southwest early in the afternoon becoming south late in the
afternoon. chance of snow in the afternoon. waves 1 foot or less.
.friday night...south wind 10 to 15 knots with gusts to around
25 knots becoming southwest with gusts to around 20 knots early
in the morning. chance of snow. waves 1 foot or less. 

$$

fzus53 kdlh 180601
nshdlh
expires:202512181700;;780072

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz140-181700-
grand portage to grand marais mn-
1201 am cst thu dec 18 2025

...small craft advisory in effect through this afternoon...
...gale warning in effect from this afternoon through late
tonight...

.today...southwest wind 15 to 20 knots with gusts to around
25 knots becoming northwest with gusts to around 25 knots late in
the morning, then becoming north up to 30 knots with gales to
around 45 knots in the afternoon. rain in the morning, then snow,
rain and light freezing rain likely in the afternoon. heavy
freezing spray late in the afternoon. waves 4 to 7 feet. waves
occasionally to 9 feet. 
.tonight...north gales to 35 knots with storm force gusts to
around 50 knots easing to up to 30 knots with storm force gusts
to around 50 knots in the late evening and overnight. heavy
freezing spray in the evening. snow likely in the evening, then
slight chance of snow after midnight. waves 4 to 7 feet. waves
occasionally to 9 feet. a storm warning may be needed. 
.friday...north wind 20 to 25 knots with gusts to around 30 knots
easing to 10 to 15 knots with gusts to around 25 knots late in
the morning, then becoming northeast 5 to 10 knots early in the
afternoon becoming southeast with gusts to around 20 knots late
in the afternoon. chance of snow in the afternoon. waves 2 to
4 feet subsiding to 1 to 2 feet in the late morning and
afternoon. a small craft advisory may be needed. 
.friday night...south wind 20 to 25 knots with gales to around
45 knots becoming southwest with gales to around 40 knots early
in the morning. snow likely in the evening, then chance of snow
after midnight. freezing spray after midnight. waves 2 to 4 feet
building to 5 to 8 feet in the late evening and overnight. waves
occasionally to 10 feet. a gale warning may be needed. 

$$

fzus53 kdlh 180601
nshdlh
expires:202512181700;;780073

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz141-181700-
grand marais to taconite harbor mn-
1201 am cst thu dec 18 2025

...small craft advisory in effect through this afternoon...
...gale warning in effect from this afternoon through late
tonight...

.today...southwest wind 10 to 15 knots with gusts to around
20 knots becoming west with gusts to around 20 knots late in the
morning, then becoming northwest 15 to 20 knots with gusts to
around 30 knots early in the afternoon becoming north up to
30 knots with gales to around 45 knots late in the afternoon.
rain likely early in the morning, then chance of rain in the late
morning and early afternoon. snow likely in the afternoon. waves
3 to 5 feet. 
.tonight...north wind up to 30 knots with storm force gusts to
around 50 knots easing to 15 to 20 knots with gales to around
45 knots after midnight. chance of snow in the evening. waves
3 to 5 feet subsiding to 1 to 2 feet early in the morning. a
storm warning may be needed. 
.friday...north wind 10 to 15 knots with gusts to around 25 knots
becoming northeast 5 knots early in the afternoon, then becoming
southeast with gusts to around 20 knots late in the afternoon.
chance of snow in the afternoon. waves 1 to 2 feet. 
.friday night...south wind 15 to 20 knots with gales to around
35 knots becoming southwest with gales to around 35 knots after
midnight. chance of snow. waves 1 to 3 feet building to 3 to
5 feet in the late evening and overnight. a gale warning may be
needed. 

$$

fzus53 kdlh 180601
nshdlh
expires:202512181700;;780074

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz142-181700-
taconite harbor to silver bay harbor mn-
1201 am cst thu dec 18 2025

...small craft advisory in effect through this afternoon...
...gale warning in effect from this afternoon through late
tonight...

.today...southwest wind 10 to 15 knots with gusts to around
20 knots becoming northwest 15 to 20 knots with gusts to around
30 knots early in the afternoon, then rising to up to 30 knots
with gales to around 45 knots late in the afternoon. chance of
rain until late afternoon. snow likely in the afternoon. waves
2 to 4 feet subsiding to 1 to 3 feet in the late morning and
early afternoon, then building to 2 to 4 feet late in the
afternoon. 
.tonight...north wind up to 30 knots with storm force gusts to
around 50 knots easing to 15 to 20 knots with gales to around
40 knots after midnight. chance of snow in the evening. waves
3 to 5 feet subsiding to 1 to 2 feet early in the morning. waves
occasionally to 7 feet. a storm warning may be needed. 
.friday...northwest wind 5 to 10 knots with gusts to around
25 knots becoming south early in the afternoon, then becoming
southeast with gusts to around 20 knots late in the afternoon.
chance of snow in the afternoon. waves 1 foot or less. 
.friday night...south wind 10 to 15 knots with gusts to around
30 knots becoming southwest with gusts to around 25 knots after
midnight. chance of snow. waves 1 to 3 feet. 

$$

fzus53 kdlh 180601
nshdlh
expires:202512181700;;780075

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz143-181700-
silver bay harbor to two harbors mn-
1201 am cst thu dec 18 2025

...small craft advisory in effect through this afternoon...
...gale warning in effect from this afternoon through late
tonight...

.today...southwest wind 15 to 20 knots becoming west 20 to
25 knots with gusts to around 30 knots early in the afternoon,
then becoming northwest up to 30 knots with gales to around
40 knots late in the afternoon. chance of rain until late
afternoon. snow likely in the afternoon. waves 2 to 4 feet. 
.tonight...north wind up to 30 knots with gales to around
45 knots becoming northwest 15 to 20 knots with gales to around
35 knots after midnight. chance of snow in the evening. waves
3 to 5 feet subsiding to 1 to 2 feet. 
.friday...northwest wind 5 to 10 knots with gusts to around
20 knots becoming west late in the morning, then becoming south
with gusts to around 20 knots in the afternoon. chance of snow in
the afternoon. waves 1 foot or less. 
.friday night...south wind 10 to 15 knots with gusts to around
30 knots becoming southwest with gusts to around 25 knots after
midnight. chance of snow. waves 1 to 2 feet building to 2 to
4 feet in the late evening and overnight. 

$$

fzus53 kdlh 180601
nshdlh
expires:202512181700;;780076

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz144-181700-
two harbors to duluth mn-
1201 am cst thu dec 18 2025

...small craft advisory in effect through this afternoon...
...gale warning in effect from this afternoon through late
tonight...

.today...southwest wind 15 to 20 knots becoming west 20 to
25 knots with gusts to around 30 knots early in the afternoon,
then becoming northwest up to 30 knots with gales to around
40 knots late in the afternoon. chance of rain until late
afternoon. snow likely in the afternoon. waves 3 to 5 feet. waves
occasionally to 7 feet. 
.tonight...northwest wind up to 30 knots with gales to around
40 knots easing to 15 to 20 knots with gusts to around 25 knots
early in the morning. heavy freezing spray in the evening. chance
of snow in the evening. waves 4 to 6 feet subsiding to 1 to
2 feet. waves occasionally to 8 feet. 
.friday...northwest wind 5 to 10 knots becoming west late in the
morning, then becoming south early in the afternoon becoming
southeast 10 to 15 knots with gusts to around 20 knots late in
the afternoon. chance of snow in the afternoon. waves 1 to
2 feet. 
.friday night...south wind 15 to 20 knots with gusts to around
30 knots becoming southwest with gusts to around 25 knots after
midnight. chance of snow. waves 2 to 4 feet. 

$$

fzus53 kdlh 180601
nshdlh
expires:202512181700;;780077

nearshore marine forecast
national weather service duluth mn
1201 am cst thu dec 18 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.


lsz145-181700-
duluth mn to port wing wi-
1201 am cst thu dec 18 2025

...small craft advisory in effect through this afternoon...
...gale warning in effect from this afternoon through late
tonight...
...heavy freezing spray warning in effect from this evening
through late tonight...

.today...southwest wind 15 to 20 knots becoming west 20 to
25 knots with gales to around 35 knots early in the afternoon,
then becoming northwest up to 30 knots with gales to around
40 knots late in the afternoon. chance of rain until late
afternoon. snow likely in the afternoon. freezing spray late in
the afternoon. waves 2 to 4 feet building to 4 to 7 feet late in
the afternoon. waves occasionally to 9 feet. 
.tonight...northwest gales to 35 knots with storm force gusts to
around 50 knots easing to 15 to 20 knots with gusts to around
30 knots. chance of snow in the evening. heavy freezing spray
through the night. waves 5 to 8 feet subsiding to 2 to 4 feet
early in the morning. waves occasionally to 11 feet. a storm
warning may be needed. 
.friday...northwest wind 10 to 15 knots with gusts to around
20 knots becoming west 5 knots late in the morning, then becoming
south 10 to 15 knots with gusts to around 20 knots in the
afternoon. chance of snow in the afternoon. waves 1 to 2 feet. 
.friday night...south wind 15 to 20 knots becoming southwest with
gusts to around 25 knots early in the morning. chance of snow.
waves 1 to 3 feet building to 2 to 4 feet after midnight. 

$$

fzus53 kmqt 180400
nshmqt
expires:202512180900;;775135

nearshore marine forecast
national weather service marquette mi
1100 pm est wed dec 17 2025

for waters within five nautical miles of shore

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.


lsz242-243-180900-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
1100 pm est wed dec 17 2025

...gale warning in effect from thursday afternoon through friday
morning...
...heavy freezing spray warning in effect from thursday evening
through friday morning...

.rest of tonight...south wind 15 to 25 knots with gale force
gusts up to 34 knots. cloudy with a chance of drizzle and rain
showers. waves 2 to 4 feet building to 3 to 5 feet occasionally
to 7 feet, then subsiding to 2 to 3 feet. 
.thursday...south wind 15 to 20 knots with gale force gusts up to
38 knots veering west up to 30 knots with gale force gusts up to
38 knots late. a chance of rain showers through mid morning, then
rain showers likely by late morning. snow showers late. waves
building to 7 to 10 feet occasionally to 13 feet. 
.thursday night...north wind up to 30 knots with gale force gusts
up to 44 knots. snow showers. freezing spray. waves building to
11 to 15 feet occasionally to 19 feet, then subsiding to 10 to
14 feet occasionally to 18 feet. 
.friday...north wind up to 30 knots with gale force gusts up to
37 knots becoming northeast less than 10 knots with gusts up to
18 knots in the afternoon. cloudy. freezing spray in the morning.
a chance of snow showers in the morning, then a slight chance of
snow showers in the afternoon. waves subsiding to 2 to 3 feet. 

note: wave height forecasts are for ice free areas.

$$

fzus53 kmqt 180400
nshmqt
expires:202512180900;;775134

nearshore marine forecast
national weather service marquette mi
1100 pm est wed dec 17 2025

for waters within five nautical miles of shore

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.


lsz240-241-180900-
saxon harbor wi to black river mi-
black river to ontonagon mi-
1100 pm est wed dec 17 2025 /1000 pm cst wed dec 17 2025/

...gale warning in effect until 4 am est /3 am cst/ thursday...
...heavy freezing spray warning in effect from thursday evening
through friday morning...

.rest of tonight...south wind up to 30 knots diminishing to 15 to
25 knots late. gale force gusts up to 38 knots. cloudy. a slight
chance of drizzle. waves 3 to 5 feet occasionally to 7 feet
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
2 to 4 feet. 
.thursday...south wind 10 to 20 knots veering west 15 to 25 knots
with gale force gusts up to 37 knots late. cloudy. a chance of
rain showers and drizzle through early afternoon, then snow
showers possibly mixed with rain showers late. waves subsiding to
2 to 3 feet, then building to 7 to 10 feet occasionally to
13 feet. 
.thursday night...north wind up to 30 knots with gale force gusts
up to 40 knots. cloudy with snow showers. freezing spray. waves
building to 9 to 12 feet occasionally to 15 feet, then subsiding
to 7 to 10 feet occasionally to 13 feet. 
.friday...northwest wind 10 to 20 knots with gusts up to 27 knots
backing south 5 to 15 knots in the afternoon. freezing spray in
the morning. cloudy with a slight chance of snow showers. waves
subsiding to 2 to 3 feet. 

note: wave height forecasts are for ice free areas.

$$