fzus63 kdtx 240240
glflh 
expires:202511241045;;396428

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 pm est sun nov 23 2025

for waters beyond five nautical miles off shore on lake huron

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.

.synopsis...lighter winds around the rest of this evening and
tonight as a ridge of high pressure, 30.20 inches, has arrived.
light to moderate southerly flow on monday. next low pressure
system arrives on tuesday, leading to widespread rain. gales are
then likely to develop in wednesday-thursday time frame.


lhz361-362-241045-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
940 pm est sun nov 23 2025

.rest of tonight...west winds 10 to 15 knots decreasing to 5 to
10 knots after midnight...then backing to the south early in the
morning. waves 4 to 6 feet subsiding to 2 to 4 feet early in the
morning. waves occasionally around 8 feet. 
.monday...south winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. waves 1 to 3 feet building to
4 to 6 feet in the late morning and afternoon. waves occasionally
around 8 feet. 
.monday night...south winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. a chance of rain in
the evening...then rain likely after midnight. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.tuesday...southeast winds 5 to 10 knots. rain likely. waves 1 to
3 feet. 
.tuesday night...southeast winds 5 to 10 knots increasing to
10 to 15 knots after midnight. rain likely in the evening...then
rain after midnight. waves 1 to 3 feet building to 2 to 4 feet
after midnight. 
.wednesday...south winds 15 to 20 knots becoming southwest to
30 knots with gusts to 35 knot gales late in the morning...then
increasing to 40 knot gales late in the afternoon. rain, snow.
waves 6 to 9 feet building to 12 to 16 feet. waves occasionally
around 20 feet. a gale warning may be needed. 
.thursday...west at 40 knot gales with gusts to 45 knot gales.
snow early in the morning...then snow likely until early morning.
waves 12 to 16 feet. waves occasionally around 20 feet. 
.friday...northwest winds to 30 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots. a chance of snow. waves 8 to
12 feet subsiding to 5 to 7 feet until early morning. waves
occasionally around 15 feet. 


$$

fzus63 kdtx 240240
glflh 
expires:202511241045;;396429

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 pm est sun nov 23 2025

for waters beyond five nautical miles off shore on lake huron

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.

.synopsis...lighter winds around the rest of this evening and
tonight as a ridge of high pressure, 30.20 inches, has arrived.
light to moderate southerly flow on monday. next low pressure
system arrives on tuesday, leading to widespread rain. gales are
then likely to develop in wednesday-thursday time frame.


lhz363-462>464-241045-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
940 pm est sun nov 23 2025

.rest of tonight...northwest winds 10 to 15 knots becoming west
5 to 10 knots after midnight...then backing to the southwest
early in the morning. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.monday...south winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. waves 1 to 3 feet building to
3 to 5 feet in the late morning and afternoon. 
.monday night...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. a chance of rain
after midnight. waves 3 to 5 feet. 
.tuesday...south winds 5 to 10 knots. a chance of rain. waves
1 to 3 feet. 
.tuesday night...south winds 5 to 10 knots increasing to 10 to
15 knots after midnight. a chance of rain in the evening...then
rain likely after midnight. waves 1 to 3 feet building to 2 to
4 feet after midnight. 
.wednesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest at 40 knot gales with gusts to
45 knot gales. rain likely. snow likely. waves 8 to 12 feet
building to 14 to 18 feet. waves occasionally around 23 feet. a
gale warning may be needed. 
.thursday...west at 40 knot gales with gusts to 45 knot gales.
snow likely. waves 12 to 16 feet. waves occasionally around
20 feet. 
.friday...west at 35 knot gales with gusts to 40 knot gales
decreasing to 15 to 20 knots. a chance of snow. waves 10 to
14 feet subsiding to 5 to 7 feet until early morning. waves
occasionally around 18 feet. 


$$

fzus63 kmkx 240310
glflm 
expires:202511241015;;397837

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
910 pm cst sun nov 23 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

southwest winds are expected overnight, as high pressure around 
30.4 inches moves into the mid-atlantic region. winds will be
south to southwest and increase on monday, as low pressure around
29.8 inches develops in the middle mississippi valley. southerly 
winds will continue into tuesday, as low pressure strengthens to 
29.6 inches over minnesota. 

a cold front from this low will surge eastward across the lake 
tuesday night, as the low continues to strengthen to around 29.3 
inches, bringing westerly gales by wednesday morning. westerly 
gales will become northwesterly wednesday night, continuing into 
thursday morning before diminishing, as the low pressure system 
finally shifts into northern quebec.


lmz261-362-364-366-563-565-567-868-241015-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
910 pm cst sun nov 23 2025

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds 10 to 15 kt increasing to
15 to 25 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.monday...southwest winds to 30 kt. waves 4 to 6 ft occasionally
to 8 ft building to 5 to 8 ft occasionally to 10 ft. 
.monday night...southwest winds 10 to 20 kt becoming south 5 to
10 kt. rain likely. waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft. 
.tuesday...south winds 10 to 15 kt. rain likely. waves 1 to 3 ft.
.tuesday night...south winds 10 to 20 kt becoming southwest to
30 kt overnight. rain. waves 2 to 4 ft building to 7 to 10 ft
occasionally to 13 ft. 
.wednesday...west gales to 40 kt increasing to 45 kt in the 
afternoon. rain with snow likely in the morning, then snow in the 
afternoon. waves 12 to 16 ft occasionally to 21 ft building to 14 
to 18 ft occasionally to 23 ft. 
.wednesday night...west gales to 45 kt becoming northwest. snow. 
waves 14 to 18 ft occasionally to 23 ft. 
.thursday...northwest gales to 45 kt diminishing to gales to
40 kt. chance of snow. waves 12 to 16 ft occasionally to 21 ft. 
.friday...northwest winds to 30 kt diminishing to 15 to 25 kt.
chance of snow. waves 5 to 8 ft occasionally to 10 ft subsiding
to 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 240310
glflm 
expires:202511241015;;397838

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
910 pm cst sun nov 23 2025

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

southwest winds are expected overnight, as high pressure around 
30.4 inches moves into the mid-atlantic region. winds will be
south to southwest and increase on monday, as low pressure around
29.8 inches develops in the middle mississippi valley. southerly 
winds will continue into tuesday, as low pressure strengthens to 
29.6 inches over minnesota. 

a cold front from this low will surge eastward across the lake 
tuesday night, as the low continues to strengthen to around 29.3 
inches, bringing westerly gales by wednesday morning. westerly 
gales will become northwesterly wednesday night, continuing into 
thursday morning before diminishing, as the low pressure system 
finally shifts into northern quebec.


lmz080-669-671-673-675-777-779-870-872-874-876-878-241015-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
910 pm cst sun nov 23 2025

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds 10 to 15 kt becoming south
10 to 20 kt. waves 1 to 3 ft. 
.monday...south winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.monday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. rain likely. waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft. 
.tuesday...south winds 5 to 10 kt becoming southwest. chance of
rain. waves 1 to 3 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming west gales
to 35 kt overnight. rain in the evening, then chance of rain
overnight. waves 3 to 5 ft building to 8 to 12 ft occasionally to
16 ft. 
.wednesday...west gales to 45 kt. chance of rain in the morning,
then chance of snow in the afternoon. waves 14 to 18 ft
occasionally to 23 ft building to 15 to 20 ft occasionally to
26 ft. 
.wednesday night...west gales to 45 kt. chance of snow. waves
15 to 20 ft occasionally to 26 ft. 
.thursday...northwest gales to 40 kt. chance of snow. waves 15 to
20 ft occasionally to 26 ft. 
.friday...northwest winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft.  

$$

fzus63 kmqt 240300
glfls 
expires:202511240900;;396931

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sun nov 23 2025

for waters beyond 5 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.

.synopsis...

a 30.0 inch ridge was over lake superior this evening as a 30.1 inch 
high was pushing eastward south of the great lakes. this high will 
reach the east coast by monday afternoon with a weak 29.8 inch 
trough moving over lake superior. monday night into tuesday, a 29.8 
inch low will organize just west of the great lakes, deepening to 
29.6 inches tuesday night over the michigan upper peninsula and 
passing over eastern lake superior at 29.4 inches wednesday. this 
low deepens further to 29.3 inches over quebec thursday while 30.5 
inch high pressure builds over the northern great plains. this high 
moves over lake superior friday into the weekend.



lsz162-240900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est sun nov 23 2025 /900 pm cst sun nov 23 2025/

.rest of tonight...south winds 5 to 15 knots becoming southwest
10 to 20 knots by midnight. waves calm to 2 feet building to 1 to
3 feet. 
.monday...west winds 10 to 20 knots diminishing to 5 to 15 knots.
waves building to 2 to 4 feet, then subsiding to calm to 2 feet. 
.monday night...north winds 5 to 15 knots veering northeast by
midnight, then increasing to 10 to 20 knots late. a slight chance
of rain showers after midnight. waves calm to 2 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a chance of rain showers in the
morning, then rain showers in the afternoon. waves building to
3 to 5 feet occasionally to 7 feet. 
.tuesday night...northeast winds 20 to 30 knots becoming north
gales to 35 knots after midnight. rain showers in the evening.
snow showers. a slight chance of rain showers after midnight.
waves building to 8 to 11 feet occasionally to 14 feet. 
.wednesday...north gales to 40 knots backing northwest in the
afternoon. snow showers. waves subsiding to 6 to 9 feet
occasionally to 11 feet. 
.wednesday night...northwest gales to 35 knots diminishing to
20 to 30 knots after midnight. a chance of snow showers. waves
subsiding to 4 to 7 feet occasionally to 9 feet. 
.thursday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 1 to 3 feet. 
.friday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 240300
glfls 
expires:202511240900;;396932

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sun nov 23 2025

for waters beyond 5 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.

.synopsis...

a 30.0 inch ridge was over lake superior this evening as a 30.1 inch 
high was pushing eastward south of the great lakes. this high will 
reach the east coast by monday afternoon with a weak 29.8 inch 
trough moving over lake superior. monday night into tuesday, a 29.8 
inch low will organize just west of the great lakes, deepening to 
29.6 inches tuesday night over the michigan upper peninsula and 
passing over eastern lake superior at 29.4 inches wednesday. this 
low deepens further to 29.3 inches over quebec thursday while 30.5 
inch high pressure builds over the northern great plains. this high 
moves over lake superior friday into the weekend.



lsz263-240900-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1000 pm est sun nov 23 2025

.rest of tonight...south winds 5 to 15 knots increasing to 10 to
20 knots by midnight, then veering southwest late. waves calm to
2 feet building to 2 to 4 feet. 
.monday...west winds 10 to 20 knots diminishing to 5 to 15 knots
by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...northeast winds 5 to 15 knots. a slight chance of
rain showers after midnight. waves calm to 2 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a chance of rain showers in the
morning, then rain showers likely in the afternoon. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...northeast winds 20 to 30 knots becoming north
gales to 40 knots after midnight. rain showers in the evening.
snow showers. a slight chance of rain showers after midnight.
waves building to 10 to 14 feet occasionally to 18 feet. 
.wednesday...north gales to 45 knots backing northwest in the
afternoon. snow showers. waves building to 12 to 17 feet
occasionally to 21 feet, then subsiding to 10 to 14 feet
occasionally to 18 feet. 
.wednesday night...northwest gales to 40 knots. snow showers
likely in the evening, then a chance of snow showers after
midnight. waves subsiding to 8 to 11 feet occasionally to
14 feet. 
.thursday...northwest gales to 40 knots diminishing to 20 to
30 knots. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 240300
glfls 
expires:202511240900;;396933

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sun nov 23 2025

for waters beyond 5 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.

.synopsis...

a 30.0 inch ridge was over lake superior this evening as a 30.1 inch 
high was pushing eastward south of the great lakes. this high will 
reach the east coast by monday afternoon with a weak 29.8 inch 
trough moving over lake superior. monday night into tuesday, a 29.8 
inch low will organize just west of the great lakes, deepening to 
29.6 inches tuesday night over the michigan upper peninsula and 
passing over eastern lake superior at 29.4 inches wednesday. this 
low deepens further to 29.3 inches over quebec thursday while 30.5 
inch high pressure builds over the northern great plains. this high 
moves over lake superior friday into the weekend.



lsz264-240900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est sun nov 23 2025

.rest of tonight...south winds 5 to 15 knots increasing to 10 to
20 knots late. waves calm to 2 feet building to 2 to 4 feet. 
.monday...west winds 10 to 20 knots becoming northwest 5 to
15 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.monday night...north winds 5 to 15 knots veering northeast by
midnight. waves subsiding to calm to 2 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a chance of rain showers. waves
building to 2 to 4 feet. 
.tuesday night...northeast winds 20 to 30 knots increasing to
gales to 40 knots after midnight. rain and snow showers. waves
building to 10 to 14 feet occasionally to 18 feet. 
.wednesday...north gales to 45 knots. snow showers. waves
building to 12 to 17 feet occasionally to 21 feet. 
.wednesday night...north gales to 40 knots backing northwest
after midnight. snow showers likely in the evening, then a chance
of snow showers after midnight. waves subsiding to 11 to 15 feet
occasionally to 19 feet. 
.thursday...northwest gales to 40 knots. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 240300
glfls 
expires:202511240900;;396934

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sun nov 23 2025

for waters beyond 5 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.

.synopsis...

a 30.0 inch ridge was over lake superior this evening as a 30.1 inch 
high was pushing eastward south of the great lakes. this high will 
reach the east coast by monday afternoon with a weak 29.8 inch 
trough moving over lake superior. monday night into tuesday, a 29.8 
inch low will organize just west of the great lakes, deepening to 
29.6 inches tuesday night over the michigan upper peninsula and 
passing over eastern lake superior at 29.4 inches wednesday. this 
low deepens further to 29.3 inches over quebec thursday while 30.5 
inch high pressure builds over the northern great plains. this high 
moves over lake superior friday into the weekend.



lsz265-240900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est sun nov 23 2025

.rest of tonight...south winds 10 to 20 knots increasing to 15 to
25 knots late. waves calm to 2 feet building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.monday...southwest winds 15 to 25 knots becoming west 5 to
15 knots by late morning, then veering northwest by mid
afternoon. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.monday night...north winds 5 to 15 knots veering northeast by
midnight. a chance of rain showers. waves calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. a chance of rain showers in the
morning, then rain showers likely in the afternoon. waves
building to 1 to 3 feet. 
.tuesday night...northeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. rain showers. snow showers after
midnight. waves building to 6 to 9 feet occasionally to 11 feet. 
.wednesday...north gales to 40 knots becoming northwest gales to
45 knots in the afternoon. snow showers. waves building to 12 to
17 feet occasionally to 21 feet. 
.wednesday night...northwest storm force winds to 50 knots. snow
showers. waves 12 to 17 feet occasionally to 21 feet. 
.thursday...northwest gales to 40 knots. snow showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 
.friday...northwest winds 20 to 30 knots becoming west 10 to
20 knots. a chance of snow showers. waves subsiding to calm to
2 feet. 

$$

fzus63 kmqt 240300
glfls 
expires:202511240900;;396935

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sun nov 23 2025

for waters beyond 5 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.

.synopsis...

a 30.0 inch ridge was over lake superior this evening as a 30.1 inch 
high was pushing eastward south of the great lakes. this high will 
reach the east coast by monday afternoon with a weak 29.8 inch 
trough moving over lake superior. monday night into tuesday, a 29.8 
inch low will organize just west of the great lakes, deepening to 
29.6 inches tuesday night over the michigan upper peninsula and 
passing over eastern lake superior at 29.4 inches wednesday. this 
low deepens further to 29.3 inches over quebec thursday while 30.5 
inch high pressure builds over the northern great plains. this high 
moves over lake superior friday into the weekend.



lsz266-240900-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1000 pm est sun nov 23 2025

.rest of tonight...south winds 10 to 20 knots increasing to 15 to
25 knots late. waves 2 to 4 feet subsiding to 1 to 3 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.monday...southwest winds 15 to 25 knots becoming west 5 to
15 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.monday night...north winds 5 to 15 knots veering east late. a
chance of rain showers. waves subsiding to calm to 2 feet. 
.tuesday...northeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon. a chance of rain showers in the
morning, then rain showers in the afternoon. waves building to
2 to 4 feet. 
.tuesday night...east winds 20 to 30 knots increasing to gales to
35 knots after midnight. rain showers. snow showers after
midnight. waves building to 7 to 10 feet occasionally to 13 feet.
.wednesday...north gales to 40 knots becoming northwest gales to
45 knots in the afternoon. rain showers in the morning. snow
showers. waves building to 12 to 17 feet occasionally to 21 feet.
.wednesday night...north gales to 45 knots backing northwest
after midnight. snow showers. waves building to 15 to 20 feet
occasionally to 25 feet. 
.thursday...northwest gales to 45 knots. snow showers. waves
subsiding to 8 to 11 feet occasionally to 14 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. a chance of snow showers. waves subsiding to 2 to
4 feet. 

$$

fzus63 kmqt 240300
glfls 
expires:202511240900;;396936

open lake forecast for lake superior
national weather service marquette mi
1000 pm est sun nov 23 2025

for waters beyond 5 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.

.synopsis...

a 30.0 inch ridge was over lake superior this evening as a 30.1 inch 
high was pushing eastward south of the great lakes. this high will 
reach the east coast by monday afternoon with a weak 29.8 inch 
trough moving over lake superior. monday night into tuesday, a 29.8 
inch low will organize just west of the great lakes, deepening to 
29.6 inches tuesday night over the michigan upper peninsula and 
passing over eastern lake superior at 29.4 inches wednesday. this 
low deepens further to 29.3 inches over quebec thursday while 30.5 
inch high pressure builds over the northern great plains. this high 
moves over lake superior friday into the weekend.



lsz267-240900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est sun nov 23 2025

.rest of tonight...southwest winds 10 to 20 knots backing south
by midnight, then increasing to 15 to 25 knots late. waves 2 to
4 feet subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.monday...southwest winds 20 to 30 knots diminishing to 15 to
25 knots by late morning, then becoming west 10 to 20 knots by
mid afternoon. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 1 to 3 feet. 
.monday night...west winds 10 to 20 knots becoming northeast 5 to
15 knots by midnight, then veering east late. a chance of rain
showers. waves subsiding to calm to 2 feet. 
.tuesday...east winds 10 to 20 knots. rain showers. waves calm to
2 feet. 
.tuesday night...east winds 15 to 25 knots increasing to 20 to
30 knots after midnight. rain showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.wednesday...south winds 20 to 30 knots becoming west gales to
35 knots in the afternoon. rain showers. snow showers in the
afternoon. waves building to 9 to 12 feet occasionally to
15 feet. 
.wednesday night...northwest gales to 45 knots. snow showers.
waves building to 12 to 17 feet occasionally to 21 feet. 
.thursday...northwest gales to 45 knots. snow showers. waves
subsiding to 8 to 11 feet occasionally to 14 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. snow showers likely. waves subsiding to 2 to 4 feet. 

$$