fzus63 kdtx 242053
glflh 
expires:202511250500;;440613

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 pm est mon nov 24 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...weak low pressure tracks into the great lakes on
tuesday with widespread rain and lighter winds. a stronger low
pressure system arriving from the midwest then rapidly deepens
over the northern great lakes wednesday into wednesday night,
leading to a long duration of gales through early friday. much
cooler air arrives with snow squalls becoming likely thursday
into friday.


lhz363-462-250500-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
353 pm est mon nov 24 2025

...gale watch in effect from wednesday morning through friday
morning...

.tonight...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 3 to 5 feet. 
.tuesday...south winds 5 to 10 knots. a chance of rain in the
afternoon. waves 1 to 3 feet. 
.tuesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots after midnight. rain likely. waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots increasing to 35 knot
gales with gusts to 45 knot gales. rain likely in the morning...
then rain and snow likely in the afternoon. waves 5 to 7 feet
building to 12 to 16 feet in the late morning and afternoon.
waves occasionally around 20 feet. a gale warning may be needed. 
.wednesday night...west at 40 knot gales with gusts to 45 knot
gales. rain and snow in the evening...then snow after midnight.
waves 15 to 20 feet. waves occasionally around 25 feet. 
.thursday...west at 40 knot gales with gusts to 45 knot gales.
snow likely in the morning...then snow late in the morning. a
chance of snow late in the evening. waves 18 to 23 feet. waves
occasionally around 28 feet. 
.friday...northwest at 35 knot gales becoming west 15 to
20 knots. a chance of snow. waves 14 to 18 feet subsiding to 8 to
12 feet until early morning. waves occasionally around 23 feet. 
.saturday...west winds 10 to 15 knots backing to the southwest
until early morning. a chance of snow...then snow likely in the
late evening and early morning. waves 3 to 5 feet subsiding to
1 to 3 feet early in the evening...then building to 2 to 4 feet
in the late evening and early morning. 


$$

fzus63 kdtx 242053
glflh 
expires:202511250500;;440612

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 pm est mon nov 24 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...weak low pressure tracks into the great lakes on
tuesday with widespread rain and lighter winds. a stronger low
pressure system arriving from the midwest then rapidly deepens
over the northern great lakes wednesday into wednesday night,
leading to a long duration of gales through early friday. much
cooler air arrives with snow squalls becoming likely thursday
into friday.


lhz361-362-250500-
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-
353 pm est mon nov 24 2025

...gale watch in effect from wednesday morning through friday
morning...

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


$$

fzus63 kmkx 242035
glflm 
expires:202511250415;;440035

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
235 pm cst mon nov 24 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...

southerly winds will decrease tonight as the broadened low 
pressure around 29.7 inches pushes over the western great lakes 
region through the day tuesday. the low will strengthen to 29.6 
inches as it tracks across minnesota tuesday with the associated
cold front surging across southern lake michigan tuesday night 
and lifting through northern lake michigan wednesday as the low
further deepens to 29.3 inches over eastern lake superior. the 
strong low will generally maintain its strength as it crosses 
ontario wednesday night and quebec on thursday.

westerly gales will likely develop over southern lake michigan 
early wednesday morning and expand into the north half several
hours later. the westerly gales will become northwesterly 
wednesday night and persist into thursday afternoon before 
diminishing. it remains possible for some storm force gusts 
wednesday afternoon and night and thus we cannot rule out
shorter fused storm warning. however, a gale watch remains in 
effect at this time.

winds will diminish as high pressure of 30.5 inches crosses the
midwest on friday. look for southerly winds to develop sunday as
low pressure develops over the western half of the country. more
gales will bee possible this weekend into early next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-250415-
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-
235 pm cst mon nov 24 2025

sheboygan wi to pentwater mi south...

...gale watch in effect from late tuesday night through thursday
evening...

.tonight...south winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of sprinkles and slight chance of rain this evening, then
slight chance of rain overnight. waves 4 to 6 ft occasionally to
8 ft subsiding to 1 to 3 ft. 
.tuesday...south winds 10 to 15 kt becoming southwest 5 to 10 kt.
patchy fog in the morning. chance of rain in the morning, then
chance of sprinkles and slight chance of rain in the afternoon.
waves 1 to 3 ft. 
.tuesday night...southwest winds 10 to 15 kt becoming west gales
to 40 kt. rain. waves 1 to 2 ft building to 8 to 11 ft
occasionally to 14 ft. 
.wednesday...west gales to 45 kt. rain and snow in the morning,
then snow in the afternoon. waves 15 to 20 ft occasionally to
26 ft. 
.wednesday night...west gales to 45 kt becoming northwest. chance
of 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. 
.thursday night...northwest gales to 40 kt diminishing to 30 kt.
chance of snow. waves 10 to 14 ft occasionally to 18 ft subsiding
to 8 to 11 ft occasionally to 14 ft. 
.friday...northwest winds to 30 kt diminishing to 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.saturday...south winds 10 to 20 kt. snow likely. waves 3 to 5 ft
building to 4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 242035
glflm 
expires:202511250415;;440034

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
235 pm cst mon nov 24 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...

southerly winds will decrease tonight as the broadened low 
pressure around 29.7 inches pushes over the western great lakes 
region through the day tuesday. the low will strengthen to 29.6 
inches as it tracks across minnesota tuesday with the associated
cold front surging across southern lake michigan tuesday night 
and lifting through northern lake michigan wednesday as the low
further deepens to 29.3 inches over eastern lake superior. the 
strong low will generally maintain its strength as it crosses 
ontario wednesday night and quebec on thursday.

westerly gales will likely develop over southern lake michigan 
early wednesday morning and expand into the north half several
hours later. the westerly gales will become northwesterly 
wednesday night and persist into thursday afternoon before 
diminishing. it remains possible for some storm force gusts 
wednesday afternoon and night and thus we cannot rule out
shorter fused storm warning. however, a gale watch remains in 
effect at this time.

winds will diminish as high pressure of 30.5 inches crosses the
midwest on friday. look for southerly winds to develop sunday as
low pressure develops over the western half of the country. more
gales will bee possible this weekend into early next week.


lmz261-362-364-366-563-565-567-868-250415-
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-
235 pm cst mon nov 24 2025

sheboygan wi to pentwater mi north...

...gale watch in effect from wednesday morning through late
thursday night...

.tonight...southwest winds to 30 kt diminishing to 10 to 15 kt.
chance of rain. patchy fog overnight. waves 4 to 7 ft
occasionally to 9 ft subsiding to 2 to 4 ft. 
.tuesday...south winds 10 to 15 kt diminishing to 5 to 10 kt.
chance of rain. waves 1 to 3 ft. 
.tuesday night...south winds 10 to 15 kt increasing to 10 to
20 kt late in the evening, then increasing to 15 to 25 kt after
midnight becoming southwest to 30 kt late. rain. waves 1 to 2 ft
building to 6 to 9 ft occasionally to 12 ft. 
.wednesday...west gales to 45 kt increasing to storm force winds
to 55 kt in the afternoon. rain in the morning, then rain and
snow in the afternoon. waves 12 to 16 ft occasionally to 21 ft. 
.wednesday night...northwest storm force winds to 55 kt. snow in
the evening, then chance of snow overnight. waves 12 to 16 ft
occasionally to 21 ft. 
.thursday...northwest storm force winds to 50 kt diminishing to
gales to 45 kt. chance of snow. waves 10 to 14 ft occasionally to
18 ft subsiding to 8 to 11 ft occasionally to 14 ft. 
.thursday night...northwest gales to 45 kt diminishing to gales
to 40 kt. chance of snow. waves 7 to 10 ft occasionally to 13 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.friday...northwest winds to 30 kt. chance of snow. waves 5 to
8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.saturday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. chance of snow. waves 1 to 3 ft building to 4 to 6 ft
occasionally to 8 ft.  

$$

fzus63 kmqt 242101
glfls 
expires:202511250900;;441046

open lake forecast for lake superior
national weather service marquette mi
400 pm est mon nov 24 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 29.8 inch trough was over lake superior late this afternoon. 
tonight into tuesday, a 29.8 inch low will organize just west of the 
great lakes, deepening to 29.6 inches tuesday night over the upper 
peninsula and passing over eastern lake superior at 29.3 inches 
wednesday. this low deepens further to 29.2 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.



lsz265-250900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est mon nov 24 2025

...gale watch in effect from late tuesday night through thursday
evening...

.late this afternoon...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...north winds 5 to 15 knots becoming northeast 10 to
20 knots by midnight. a slight chance of rain showers after
midnight. waves building to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid 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 increasing to
gales to 40 knots by midnight. rain showers. snow showers after
midnight. waves building to 10 to 14 feet occasionally to
18 feet. 
.wednesday...north gales to 45 knots increasing to storm force
winds to 50 knots in the afternoon. snow showers, possibly mixed
with rain. waves building to 15 to 20 feet occasionally to
25 feet. 
.wednesday night...northwest storm force winds to 50 knots. snow
showers. waves subsiding to 12 to 17 feet occasionally to
21 feet. 
.thursday...northwest gales to 45 knots. snow showers. waves
subsiding to 9 to 12 feet occasionally to 15 feet. 
.thursday night...northwest gales to 35 knots. snow showers
likely in the evening, then a chance of snow showers after
midnight. waves subsiding to 5 to 8 feet occasionally to 10 feet.
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves subsiding to calm to
2 feet. 
.saturday...west winds 10 to 20 knots. a chance of snow showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 242101
glfls 
expires:202511250900;;441047

open lake forecast for lake superior
national weather service marquette mi
400 pm est mon nov 24 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 29.8 inch trough was over lake superior late this afternoon. 
tonight into tuesday, a 29.8 inch low will organize just west of the 
great lakes, deepening to 29.6 inches tuesday night over the upper 
peninsula and passing over eastern lake superior at 29.3 inches 
wednesday. this low deepens further to 29.2 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.



lsz266-250900-
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-
400 pm est mon nov 24 2025

...gale watch in effect from late tuesday night through late
thursday night...

.late this afternoon...southwest winds 5 to 15 knots. waves 2 to
4 feet. 
.tonight...north winds 5 to 15 knots veering northeast by
midnight. a slight chance of rain showers after midnight. waves
subsiding to 1 to 3 feet. 
.tuesday...northeast winds 5 to 15 knots increasing to 15 to
25 knots. a chance of rain showers in the morning, then rain
showers in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...northeast winds 20 to 30 knots increasing to
gales to 40 knots by midnight. rain showers, possibly mixed with
snow. waves building to 10 to 14 feet occasionally to 18 feet. 
.wednesday...north gales to 45 knots. rain showers in the
morning. snow showers. a slight chance of rain showers in the
afternoon. waves building to 15 to 20 feet occasionally to
25 feet. 
.wednesday night...north storm force winds to 50 knots. snow
showers. waves building to 17 to 22 feet occasionally to 28 feet,
then subsiding to 15 to 20 feet occasionally to 25 feet. 
.thursday...northwest gales to 45 knots. snow showers. waves
subsiding to 15 to 20 feet occasionally to 25 feet. 
.thursday night...northwest gales to 40 knots. snow showers.
waves subsiding to 8 to 11 feet occasionally to 14 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. snow showers likely. waves subsiding to 1 to 3 feet. 
.saturday...west winds 10 to 20 knots. snow showers likely. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 

$$

fzus63 kmqt 242101
glfls 
expires:202511250900;;441048

open lake forecast for lake superior
national weather service marquette mi
400 pm est mon nov 24 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 29.8 inch trough was over lake superior late this afternoon. 
tonight into tuesday, a 29.8 inch low will organize just west of the 
great lakes, deepening to 29.6 inches tuesday night over the upper 
peninsula and passing over eastern lake superior at 29.3 inches 
wednesday. this low deepens further to 29.2 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.



lsz267-250900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est mon nov 24 2025

...gale watch in effect from wednesday afternoon through late
thursday night...

.late this afternoon...southwest winds 10 to 20 knots. waves 2 to
4 feet. 
.tonight...southwest winds 5 to 15 knots backing east late. a
slight chance of rain showers. waves subsiding to calm to 2 feet.
.tuesday...east winds 5 to 15 knots increasing to 10 to 20 knots.
rain showers. waves building to 2 to 4 feet. 
.tuesday night...east winds 15 to 25 knots increasing to 20 to
30 knots late. rain showers. waves building to 4 to 7 feet
occasionally to 9 feet. 
.wednesday...east winds 20 to 30 knots becoming north gales to
40 knots in the afternoon. rain showers. snow showers in the
afternoon. waves building to 9 to 12 feet occasionally to
15 feet. 
.wednesday night...north gales to 40 knots becoming northwest
gales to 45 knots 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 12 to 17 feet occasionally to 21 feet. 
.thursday night...northwest gales to 40 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 1 to 3 feet. 
.saturday...west winds 10 to 20 knots backing southwest. snow
showers likely. waves subsiding to calm to 2 feet, then building
to 1 to 3 feet. 

$$

fzus63 kmqt 242101
glfls 
expires:202511250900;;441043

open lake forecast for lake superior
national weather service marquette mi
400 pm est mon nov 24 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 29.8 inch trough was over lake superior late this afternoon. 
tonight into tuesday, a 29.8 inch low will organize just west of the 
great lakes, deepening to 29.6 inches tuesday night over the upper 
peninsula and passing over eastern lake superior at 29.3 inches 
wednesday. this low deepens further to 29.2 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.



lsz162-250900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est mon nov 24 2025 /300 pm cst mon nov 24 2025/

...gale watch in effect from tuesday evening through thursday
morning...

.late this afternoon...west winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...north winds 5 to 15 knots becoming northeast 10 to
20 knots by midnight, then increasing to 15 to 25 knots late. a
slight chance of rain showers after midnight. waves building to
2 to 4 feet. 
.tuesday...northeast winds 15 to 25 knots increasing to 20 to
30 knots. a chance of rain showers in the morning, then rain
showers likely with pockets of snow showers in the afternoon.
waves building to 5 to 8 feet occasionally to 10 feet. 
.tuesday night...northeast gales to 35 knots becoming north gales
to 40 knots by midnight. a slight chance of rain showers in the
evening. snow showers. waves building to 9 to 12 feet
occasionally to 15 feet. 
.wednesday...north gales to 40 knots backing northwest in the
afternoon. snow showers. waves subsiding to 7 to 10 feet
occasionally to 13 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. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.thursday night...northwest winds 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. 
.saturday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 242101
glfls 
expires:202511250900;;441044

open lake forecast for lake superior
national weather service marquette mi
400 pm est mon nov 24 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 29.8 inch trough was over lake superior late this afternoon. 
tonight into tuesday, a 29.8 inch low will organize just west of the 
great lakes, deepening to 29.6 inches tuesday night over the upper 
peninsula and passing over eastern lake superior at 29.3 inches 
wednesday. this low deepens further to 29.2 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.



lsz263-250900-
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-
400 pm est mon nov 24 2025

...gale watch in effect from tuesday evening through thursday
morning...

.late this afternoon...northwest winds 5 to 15 knots. waves 1 to
3 feet. 
.tonight...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 subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.tuesday...northeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. a chance of rain showers in the
morning, then rain showers likely with pockets of snow showers in
the afternoon. waves building to 5 to 8 feet occasionally to
10 feet. 
.tuesday night...northeast gales to 40 knots backing north late.
rain showers in the evening. snow showers. a slight chance of
rain showers after midnight. waves building to 11 to 15 feet
occasionally to 19 feet. 
.wednesday...north gales to 45 knots. snow showers. waves
building to 12 to 17 feet occasionally to 21 feet, then subsiding
to 11 to 15 feet occasionally to 19 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. a chance of snow
showers. waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.thursday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 242101
glfls 
expires:202511250900;;441045

open lake forecast for lake superior
national weather service marquette mi
400 pm est mon nov 24 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 29.8 inch trough was over lake superior late this afternoon. 
tonight into tuesday, a 29.8 inch low will organize just west of the 
great lakes, deepening to 29.6 inches tuesday night over the upper 
peninsula and passing over eastern lake superior at 29.3 inches 
wednesday. this low deepens further to 29.2 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.



lsz264-250900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est mon nov 24 2025

...gale watch in effect from tuesday evening through thursday
evening...

.late this afternoon...northwest winds 5 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...north winds 5 to 15 knots veering northeast by
midnight. waves 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of rain showers. a chance of
snow showers in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...northeast winds 20 to 30 knots increasing to
gales to 45 knots by midnight. rain showers in the evening. snow
showers. a slight chance of rain showers after midnight. waves
building to 12 to 17 feet occasionally to 21 feet. 
.wednesday...north gales to 45 knots. snow showers. waves
building to 15 to 20 feet occasionally to 25 feet, then subsiding
to 12 to 17 feet occasionally to 21 feet. 
.wednesday night...north gales to 45 knots backing northwest
after midnight. snow showers in the evening, then a chance of
snow showers after midnight. waves subsiding to 12 to 17 feet
occasionally to 21 feet. 
.thursday...northwest gales to 40 knots. a chance of snow
showers. waves subsiding to 9 to 12 feet occasionally to 15 feet.
.thursday night...northwest gales to 35 knots diminishing to
20 to 30 knots after midnight. a chance of snow showers. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots backing west. waves
calm to 2 feet. 

$$