fzus63 kdtx 300231
glflh 
expires:202511301045;;739371

open lake forecast for lake huron
national weather service detroit/pontiac mi
931 pm est sat nov 29 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...low pressure, 29.70 inches, will lift northeast over
central lake huron sunday morning before departing for ontario by
afternoon. a period of northwest gales behind the low is expected
over much of lake huron late in the afternoon and early evening
hours. a gale warning is in effect for much of lake huron during
this time.


lhz362-363-462>464-301045-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
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-
931 pm est sat nov 29 2025

...gale warning in effect from sunday afternoon through sunday
evening...

.rest of tonight...southeast winds 15 to 20 knots increasing to
20 to 25 knots with gusts to around 30 knots after midnight.
snow. snow may be heavy at times this evening. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.sunday...east winds 15 to 20 knots becoming northeast 10 to
15 knots late in the morning...then becoming north 15 to 20 knots
early in the afternoon becoming west to 30 knots with gusts to
35 knot gales late in the afternoon. rain and snow in the
morning...then snow and rain in the afternoon. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.sunday night...northwest winds to 30 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots. a chance of snow. waves 12 to
16 feet subsiding to 8 to 12 feet after midnight. waves
occasionally around 20 feet. 
.monday...west winds 10 to 15 knots becoming southwest 15 to
20 knots early in the afternoon. waves 5 to 7 feet subsiding to
3 to 5 feet in the late morning and afternoon. waves occasionally
around 10 feet. 
.monday night...southwest winds 15 to 20 knots. snow likely.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday...west winds 10 to 15 knots increasing to 15 to 20 knots
late in the evening. waves 3 to 5 feet building to 4 to 6 feet
late in the evening. waves occasionally around 8 feet. 
.wednesday...southwest winds 20 to 25 knots. gusts to 30 knots
until early evening. snow likely until early evening. a chance of
snow in the late evening and early morning. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.thursday...west winds 20 to 25 knots. a chance of snow until
afternoon. a chance of snow in the late evening and early
morning. waves 6 to 9 feet. waves occasionally around 12 feet. 


$$

fzus63 kdtx 300231
glflh 
expires:202511301045;;739370

open lake forecast for lake huron
national weather service detroit/pontiac mi
931 pm est sat nov 29 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...low pressure, 29.70 inches, will lift northeast over
central lake huron sunday morning before departing for ontario by
afternoon. a period of northwest gales behind the low is expected
over much of lake huron late in the afternoon and early evening
hours. a gale warning is in effect for much of lake huron during
this time.


lhz361-301045-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
931 pm est sat nov 29 2025

.rest of tonight...southeast winds 10 to 15 knots increasing to
15 to 20 knots early in the morning. snow. snow may be heavy at
times. waves 2 to 4 feet building to 6 to 9 feet after midnight.
waves occasionally around 12 feet. 
.sunday...east winds 10 to 15 knots becoming north 15 to 20 knots
in the late morning and early afternoon...then becoming northwest
20 to 25 knots with gusts to around 30 knots late in the
afternoon. snow in the morning...then snow likely in the
afternoon. waves 6 to 9 feet. waves occasionally around 12 feet. 
.sunday night...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 5 to 10 knots. a chance of snow.
waves 6 to 9 feet subsiding to 2 to 4 feet after midnight. waves
occasionally around 12 feet. 
.monday...west winds 5 to 10 knots becoming southwest 15 to
20 knots. a chance of snow in the afternoon. waves 1 to 3 feet
building to 3 to 5 feet early in the afternoon. 
.monday night...southwest winds 15 to 20 knots decreasing to
10 to 15 knots after midnight. snow likely. waves 3 to 5 feet. 
.tuesday...west winds 10 to 15 knots becoming southwest 15 to
20 knots late in the evening. a chance of snow in the morning. a
chance of snow late in the evening. waves 2 to 4 feet subsiding
to 1 to 3 feet late in the morning...then building to 2 to 4 feet
late in the evening. 
.wednesday...southwest winds 15 to 20 knots becoming west 20 to
25 knots until early morning. a chance of snow early in the
morning...then snow until early evening. snow likely in the late
evening and early morning. waves 4 to 6 feet building to 6 to
9 feet until early morning. waves occasionally around 12 feet. 
.thursday...northwest winds 15 to 20 knots backing to the
southwest in the late evening and early morning. a chance of
snow. waves 4 to 6 feet. waves occasionally around 8 feet. 


$$

fzus63 kmkx 300309
glflm 
expires:202511301015;;740811

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 pm cst sat nov 29 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...

breezy east to southeasterly winds will shift to northerly late
tonight as low pressure around 29.8 inches over northern il
reaches lake huron by late sunday morning. this will induce
northwest gales for sunday into early sunday evening for the 
entire open lake. a gale warning is in effect. winds will 
gradually ease sunday night into monday as high pressure around 
30.6 inches builds across the great lakes exiting to the east 
monday night.


lmz261-362-364-366-563-565-567-868-301015-
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-
909 pm cst sat nov 29 2025

sheboygan wi to pentwater mi north...

...gale warning in effect from 6 am cst sunday through sunday
evening...

.rest of tonight...southeast winds 15 to 25 kt becoming
northeast. snow. waves 7 to 10 ft occasionally to 13 ft. 
.sunday...north gales to 35 kt becoming northwest to 30 kt. snow
in the morning, then chance of snow in the afternoon. waves 6 to
9 ft occasionally to 12 ft building to 10 to 14 ft occasionally
to 18 ft. 
.sunday night...northwest winds to 30 kt becoming west 10 to
20 kt. chance of snow in the evening. waves 8 to 11 ft
occasionally to 14 ft subsiding to 2 to 4 ft. 
.monday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.monday night...west winds to 30 kt diminishing to 15 to 25 kt.
chance of snow. waves 4 to 6 ft occasionally to 8 ft subsiding to
3 to 5 ft. 
.tuesday...west winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday night...southwest winds 15 to 25 kt increasing to 30 kt.
chance of snow. waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft. 
.wednesday...west winds to 30 kt becoming northwest. snow likely.
waves 5 to 8 ft occasionally to 10 ft. 
.thursday...northwest winds 15 to 25 kt becoming west to 30 kt.
waves 4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 300309
glflm 
expires:202511301015;;740812

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 pm cst sat nov 29 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...

breezy east to southeasterly winds will shift to northerly late
tonight as low pressure around 29.8 inches over northern il
reaches lake huron by late sunday morning. this will induce
northwest gales for sunday into early sunday evening for the 
entire open lake. a gale warning is in effect. winds will 
gradually ease sunday night into monday as high pressure around 
30.6 inches builds across the great lakes exiting to the east 
monday night.


lmz080-669-671-673-675-777-779-870-872-874-876-878-301015-
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-
909 pm cst sat nov 29 2025

sheboygan wi to pentwater mi south...

...gale warning in effect from 6 am cst sunday through sunday
evening...

.rest of tonight...southeast winds to 30 kt shifting to 
northwest. snow and slight chance of rain late this evening, then 
snow and rain overnight. waves 8 to 12 ft occasionally to 16 ft 
subsiding to 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest gales to 35 kt. snow likely with rain in the
morning, then chance of snow in the afternoon. waves 8 to 11 ft
occasionally to 14 ft building to 12 to 16 ft occasionally to
21 ft. 
.sunday night...northwest winds to 30 kt diminishing to 10 to
15 kt. chance of snow in the evening. waves 10 to 14 ft
occasionally to 18 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.monday...west winds 10 to 20 kt becoming southwest. chance of
snow in the afternoon. waves 3 to 5 ft. 
.monday night...southwest winds 10 to 20 kt becoming west. snow
in the evening, then chance of snow overnight. waves 3 to 5 ft. 
.tuesday...northwest winds 10 to 20 kt becoming west. chance of
snow in the morning. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tuesday night...southwest winds 10 to 20 kt increasing to 30 kt.
chance of snow. waves 4 to 6 ft occasionally to 8 ft building to
6 to 9 ft occasionally to 12 ft. 
.wednesday...southwest winds to 30 kt becoming west. chance of
snow. waves 8 to 11 ft occasionally to 14 ft. 
.thursday...northwest winds 15 to 25 kt becoming west. waves 7 to
10 ft occasionally to 13 ft subsiding to 5 to 8 ft occasionally
to 10 ft.  

$$

fzus63 kmkx 292057
glflm 
expires:202511300415;;726775

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
257 pm cst sat nov 29 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...

breezy east to southeasterly winds will gradually pick up through
the afternoon across the southern portion of lake michigan as low
pressure around 29.8 inches over northern mo lift south of the 
lake this evening. still expecting southeasterly gales for the 
southern third of the lake and the gale warning remains in effect 
into tonight. then the low pressure is expected to deepen to 29.7 
inches as it lifts into lower mi overnight into sunday. will see 
winds back to the northwest across all of the lake into sunday. 
expecting winds to ramp back up to gale force, especially for the 
east side of lake michigan through the evening. given the 
confidence of the gusty winds building behind the departing low, 
will upgrade to a gale warning for sunday. winds will gradually 
ease sunday night into monday as high pressure around 30.6 inches 
builds across the great lakes exiting to the east monday night.


lmz669-671-673-870-872-874-300415-
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 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-
257 pm cst sat nov 29 2025

sheboygan wi to pentwater mi south to wind point wi to holland
mi...

...gale warning in effect from sunday morning through sunday
evening...

.tonight...southeast winds to 30 kt diminishing to 15 to 25 kt
after midnight, then backing to north late. snow and slight
chance of rain. waves 8 to 12 ft occasionally to 16 ft subsiding
to 7 to 10 ft occasionally to 13 ft. 
.sunday...northwest gales to 35 kt. snow likely with slight
chance of rain in the morning, then chance of snow in the
afternoon. waves 7 to 10 ft occasionally to 13 ft building to
12 to 16 ft occasionally to 21 ft. 
.sunday night...northwest winds to 30 kt diminishing to 10 to
15 kt. chance of snow in the evening. waves 10 to 14 ft
occasionally to 18 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.monday...west winds 10 to 20 kt becoming southwest. chance of
snow in the afternoon. waves 3 to 5 ft. 
.monday night...west winds 10 to 20 kt becoming northwest. snow
likely in the evening, then chance of snow overnight. waves 3 to
5 ft. 
.tuesday...northwest winds 10 to 20 kt becoming west. chance of
snow in the morning. waves 3 to 5 ft. 
.tuesday night...southwest winds 10 to 20 kt increasing to 30 kt.
chance of snow. waves 4 to 6 ft occasionally to 8 ft building to
6 to 9 ft occasionally to 12 ft. 
.wednesday...southwest winds to 30 kt becoming west. chance of
snow. waves 8 to 11 ft occasionally to 14 ft. 
.thursday...northwest winds 15 to 25 kt becoming west. waves 7 to
10 ft occasionally to 13 ft subsiding to 4 to 7 ft occasionally
to 9 ft.  

$$

fzus63 kmqt 300256
glfls 
expires:202511300900;;740110

open lake forecast for lake superior
national weather service marquette mi
956 pm est sat nov 29 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...

29.8 inch low pressure currently over illinois tracks over southern 
michigan into sunday morning. the low will reach georgian bay at 
29.7 inches sunday afternoon while 30.6 inch high pressure expands 
over the northern plains. as the low quickly moves to the mouth of 
the st lawrence river monday morning, the high will weaken slightly 
to 30.5 inches just southwest of the great lakes. this high weakens 
to 30.3 inches over the lower great lakes monday evening while a 
weak 30.0 inch trough descends over the lake from northern ontario. 
after the trough briefly deepens to 29.9 inches, a weak 30.0 inch 
ridge moves over the lake tuesday morning as a 29.7 inch clipper low 
forms over saskatchewan. the low weakens slightly to 29.8 inches 
tuesday evening as it approaches lake superior. by wednesday 
afternoon, the low will deepen to 29.6 inches south of james bay 
while a 30.5 inch high builds over the high plains. as the low 
departs to the east, the high shifts over the central plains 
thursday morning, moving south of the great lakes thursday evening.



lsz266-300900-
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-
956 pm est sat nov 29 2025

...gale warning in effect from 7 am est sunday through sunday
evening...

.rest of tonight...east winds 15 to 25 knots becoming northeast
20 to 30 knots late. snow showers likely. waves 1 to 3 feet
building to 4 to 7 feet occasionally to 9 feet. 
.sunday...north gales to 35 knots becoming northwest gales to
40 knots by mid afternoon. a chance of snow showers. waves
building to 6 to 10 feet occasionally to 13 feet. 
.sunday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots by midnight, then backing west late. snow showers
in the evening. a chance of snow showers after midnight. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.monday...southwest winds 20 to 30 knots. a chance of snow
showers. waves building to 5 to 8 feet occasionally to 10 feet. 
.monday night...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday...west winds 15 to 25 knots. a chance of snow showers.
waves subsiding to 1 to 3 feet. 
.tuesday night...southwest winds 15 to 25 knots becoming west
20 to 30 knots after midnight. a chance of snow showers in the
evening, then snow showers likely after midnight. waves building
to 3 to 6 feet occasionally to 8 feet. 
.wednesday...northwest gales to 35 knots. snow showers. freezing
spray. waves building to 7 to 10 feet occasionally to 13 feet,
then subsiding to 5 to 8 feet occasionally to 10 feet. 
.thursday...west winds 20 to 30 knots backing southwest. freezing
spray. snow showers likely. waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 4 to 7 feet occasionally
to 9 feet. 

$$

fzus63 kmqt 300256
glfls 
expires:202511300900;;740111

open lake forecast for lake superior
national weather service marquette mi
956 pm est sat nov 29 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...

29.8 inch low pressure currently over illinois tracks over southern 
michigan into sunday morning. the low will reach georgian bay at 
29.7 inches sunday afternoon while 30.6 inch high pressure expands 
over the northern plains. as the low quickly moves to the mouth of 
the st lawrence river monday morning, the high will weaken slightly 
to 30.5 inches just southwest of the great lakes. this high weakens 
to 30.3 inches over the lower great lakes monday evening while a 
weak 30.0 inch trough descends over the lake from northern ontario. 
after the trough briefly deepens to 29.9 inches, a weak 30.0 inch 
ridge moves over the lake tuesday morning as a 29.7 inch clipper low 
forms over saskatchewan. the low weakens slightly to 29.8 inches 
tuesday evening as it approaches lake superior. by wednesday 
afternoon, the low will deepen to 29.6 inches south of james bay 
while a 30.5 inch high builds over the high plains. as the low 
departs to the east, the high shifts over the central plains 
thursday morning, moving south of the great lakes thursday evening.



lsz267-300900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
956 pm est sat nov 29 2025

...gale warning in effect from sunday afternoon through sunday
evening...

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

$$

fzus63 kmqt 300256
glfls 
expires:202511300900;;740106

open lake forecast for lake superior
national weather service marquette mi
956 pm est sat nov 29 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...

29.8 inch low pressure currently over illinois tracks over southern 
michigan into sunday morning. the low will reach georgian bay at 
29.7 inches sunday afternoon while 30.6 inch high pressure expands 
over the northern plains. as the low quickly moves to the mouth of 
the st lawrence river monday morning, the high will weaken slightly 
to 30.5 inches just southwest of the great lakes. this high weakens 
to 30.3 inches over the lower great lakes monday evening while a 
weak 30.0 inch trough descends over the lake from northern ontario. 
after the trough briefly deepens to 29.9 inches, a weak 30.0 inch 
ridge moves over the lake tuesday morning as a 29.7 inch clipper low 
forms over saskatchewan. the low weakens slightly to 29.8 inches 
tuesday evening as it approaches lake superior. by wednesday 
afternoon, the low will deepen to 29.6 inches south of james bay 
while a 30.5 inch high builds over the high plains. as the low 
departs to the east, the high shifts over the central plains 
thursday morning, moving south of the great lakes thursday evening.



lsz162-300900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
956 pm est sat nov 29 2025 /856 pm cst sat nov 29 2025/

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

$$

fzus63 kmqt 300256
glfls 
expires:202511300900;;740107

open lake forecast for lake superior
national weather service marquette mi
956 pm est sat nov 29 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...

29.8 inch low pressure currently over illinois tracks over southern 
michigan into sunday morning. the low will reach georgian bay at 
29.7 inches sunday afternoon while 30.6 inch high pressure expands 
over the northern plains. as the low quickly moves to the mouth of 
the st lawrence river monday morning, the high will weaken slightly 
to 30.5 inches just southwest of the great lakes. this high weakens 
to 30.3 inches over the lower great lakes monday evening while a 
weak 30.0 inch trough descends over the lake from northern ontario. 
after the trough briefly deepens to 29.9 inches, a weak 30.0 inch 
ridge moves over the lake tuesday morning as a 29.7 inch clipper low 
forms over saskatchewan. the low weakens slightly to 29.8 inches 
tuesday evening as it approaches lake superior. by wednesday 
afternoon, the low will deepen to 29.6 inches south of james bay 
while a 30.5 inch high builds over the high plains. as the low 
departs to the east, the high shifts over the central plains 
thursday morning, moving south of the great lakes thursday evening.



lsz263-300900-
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-
956 pm est sat nov 29 2025

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

$$

fzus63 kmqt 300256
glfls 
expires:202511300900;;740108

open lake forecast for lake superior
national weather service marquette mi
956 pm est sat nov 29 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...

29.8 inch low pressure currently over illinois tracks over southern 
michigan into sunday morning. the low will reach georgian bay at 
29.7 inches sunday afternoon while 30.6 inch high pressure expands 
over the northern plains. as the low quickly moves to the mouth of 
the st lawrence river monday morning, the high will weaken slightly 
to 30.5 inches just southwest of the great lakes. this high weakens 
to 30.3 inches over the lower great lakes monday evening while a 
weak 30.0 inch trough descends over the lake from northern ontario. 
after the trough briefly deepens to 29.9 inches, a weak 30.0 inch 
ridge moves over the lake tuesday morning as a 29.7 inch clipper low 
forms over saskatchewan. the low weakens slightly to 29.8 inches 
tuesday evening as it approaches lake superior. by wednesday 
afternoon, the low will deepen to 29.6 inches south of james bay 
while a 30.5 inch high builds over the high plains. as the low 
departs to the east, the high shifts over the central plains 
thursday morning, moving south of the great lakes thursday evening.



lsz264-300900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
956 pm est sat nov 29 2025

.rest of tonight...northeast winds 10 to 20 knots increasing to
20 to 30 knots. a chance of snow showers. waves 1 to 3 feet
building to 5 to 8 feet occasionally to 10 feet. 
.sunday...north winds 20 to 30 knots backing northwest by mid
afternoon. a chance of snow showers in the morning. waves
subsiding to 4 to 8 feet occasionally to 10 feet. 
.sunday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots by midnight, then increasing to 15 to 25 knots
late. waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.monday...west winds 20 to 30 knots. a chance of snow showers.
waves building to 5 to 8 feet occasionally to 10 feet. 
.monday night...west winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 2 to 4 feet. 
.tuesday...west winds 10 to 20 knots. waves subsiding to 1 to
3 feet. 
.tuesday night...west winds 10 to 20 knots increasing to 20 to
30 knots after midnight. a chance of snow showers in the evening,
then snow showers likely after midnight. waves building to 3 to
6 feet occasionally to 8 feet. 
.wednesday...northwest gales to 35 knots. freezing spray. a
chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots. freezing spray. a chance
of snow showers. waves building to 4 to 7 feet occasionally to
9 feet. 

$$

fzus63 kmqt 300256
glfls 
expires:202511300900;;740109

open lake forecast for lake superior
national weather service marquette mi
956 pm est sat nov 29 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...

29.8 inch low pressure currently over illinois tracks over southern 
michigan into sunday morning. the low will reach georgian bay at 
29.7 inches sunday afternoon while 30.6 inch high pressure expands 
over the northern plains. as the low quickly moves to the mouth of 
the st lawrence river monday morning, the high will weaken slightly 
to 30.5 inches just southwest of the great lakes. this high weakens 
to 30.3 inches over the lower great lakes monday evening while a 
weak 30.0 inch trough descends over the lake from northern ontario. 
after the trough briefly deepens to 29.9 inches, a weak 30.0 inch 
ridge moves over the lake tuesday morning as a 29.7 inch clipper low 
forms over saskatchewan. the low weakens slightly to 29.8 inches 
tuesday evening as it approaches lake superior. by wednesday 
afternoon, the low will deepen to 29.6 inches south of james bay 
while a 30.5 inch high builds over the high plains. as the low 
departs to the east, the high shifts over the central plains 
thursday morning, moving south of the great lakes thursday evening.



lsz265-300900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
956 pm est sat nov 29 2025

...gale warning in effect from 4 am est sunday through sunday
evening...

.rest of tonight...northeast winds 15 to 25 knots veering east by
midnight, then becoming northeast 20 to 30 knots late. snow
showers likely. waves calm to 2 feet building to 4 to 7 feet
occasionally to 9 feet. 
.sunday...north gales to 35 knots backing northwest by mid
afternoon. a chance of snow showers. waves building to 7 to
10 feet occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.sunday night...northwest winds 20 to 30 knots becoming west
15 to 25 knots by midnight. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.monday...southwest winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. a chance of snow showers. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.monday night...west winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots backing southwest in the
afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of snow showers in the evening, then
snow showers likely after midnight. waves building to 2 to
4 feet. 
.wednesday...northwest gales to 35 knots. snow showers likely,
then a chance of snow showers. freezing spray. waves building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.thursday...west winds 20 to 30 knots. a chance of snow showers,
then snow showers likely. waves subsiding to 1 to 3 feet. 

$$