fzus63 kdtx 261958
glflh 
expires:202606270400;;953632

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt fri jun 26 2026

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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lhz361-270400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
358 pm edt fri jun 26 2026

.tonight...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.saturday night...light and variable winds. waves 2 feet or less.
.sunday...light and variable winds becoming east 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.sunday night...east winds 10 to 15 knots becoming southeast 5 to
10 knots by midnight...then increasing to 10 to 15 knots after
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.monday...southeast winds 10 to 15 knots becoming east 15 to
20 knots late in the morning...then becoming southeast 10 to
15 knots late in the evening. a chance of showers late in the
morning. waves 2 to 4 feet building to 3 to 5 feet. 
.tuesday...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then backing to the
northeast early in the evening veering to the southeast by
midnight. a chance of thunderstorms by midnight. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.wednesday...west winds 10 to 15 knots decreasing to 5 to
10 knots by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 261958
glflh 
expires:202606270400;;953633

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt fri jun 26 2026

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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lhz362-363-270400-
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-
358 pm edt fri jun 26 2026

.tonight...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.saturday night...light and variable winds. waves 2 feet or less.
.sunday...light and variable winds. waves 2 feet or less. 
.sunday night...light and variable winds becoming east 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.monday...southeast winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...south winds 10 to 15 knots becoming southwest 5 to
10 knots by midnight. waves 3 to 5 feet. 
.wednesday...southwest winds 5 to 10 knots backing to the
southeast early in the evening...then becoming light and variable
by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 261958
glflh 
expires:202606270400;;953634

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 pm edt fri jun 26 2026

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...area of high pressure, 30.10 inches, has built across
the region and will persist through the weekend. strong low
pressure, 29.40 inches, over the northern plains, will pull a
warm front up through the region on monday.


lhz462>464-270400-
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-
358 pm edt fri jun 26 2026

.tonight...light and variable winds. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...north winds 5 to 10 knots  becoming light and
variable. waves 2 feet or less. 
.sunday...light and variable winds becoming north 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.sunday night...northeast winds 5 to 10 knots veering to the
southeast after midnight. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet late in the
evening. 
.tuesday...south winds 10 to 15 knots. waves 2 to 4 feet. 
.wednesday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the south early in the evening veering to the south 5 to
10 knots by midnight. waves 1 to 3 feet. 


$$

fzus63 kmkx 262004
glflm 
expires:202606270330;;954000

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 pm cdt fri jun 26 2026

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...

high pressure around 30.1 inches continues to track across the 
upper great lakes and influence the weather pattern through 
saturday, with light north to northeast winds. patchy fog may
occur over northern portions of the lake at times. 

low pressure will deepen to around 29.3 inches over the central 
plains for sunday, bringing breezy southeasterly winds to the 
lake. winds then turn southerly and strengthen more into monday, 
as the low pressure lifts into the canadian prairies. gusty 
southerly winds may linger into most of next week. gales are not 
expected at this time.


lmz080-669-671-673-675-777-779-870-872-874-876-878-270330-
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-
304 pm cdt fri jun 26 2026

sheboygan wi to pentwater mi south...

.tonight...northeast winds 10 to 15 kt becoming east. waves 1 to
2 ft. 
.saturday...east winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 2 ft. 
.saturday night...north winds 10 to 20 kt veering to east 10 to
15 kt. waves 1 to 3 ft. 
.sunday...southeast winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday night...southeast winds 15 to 25 kt increasing to 30 kt.
chance of showers. waves 3 to 5 ft building to 4 to 6 ft
occasionally to 8 ft. 
.monday...south winds to 30 kt. waves 5 to 8 ft occasionally to
10 ft. 
.monday night...south winds to 30 kt diminishing to 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south. waves
2 to 4 ft.  

$$

fzus63 kmkx 262004
glflm 
expires:202606270330;;953999

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 pm cdt fri jun 26 2026

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...

high pressure around 30.1 inches continues to track across the 
upper great lakes and influence the weather pattern through 
saturday, with light north to northeast winds. patchy fog may
occur over northern portions of the lake at times. 

low pressure will deepen to around 29.3 inches over the central 
plains for sunday, bringing breezy southeasterly winds to the 
lake. winds then turn southerly and strengthen more into monday, 
as the low pressure lifts into the canadian prairies. gusty 
southerly winds may linger into most of next week. gales are not 
expected at this time.


lmz261-362-364-366-563-565-567-868-270330-
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-
304 pm cdt fri jun 26 2026

sheboygan wi to pentwater mi north...

.tonight...north winds 10 to 15 kt becoming east. patchy fog
overnight. waves 1 to 2 ft. 
.saturday...northeast winds 5 to 10 kt becoming north 10 to 20 kt
in the afternoon. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 20 kt diminishing to 5 to
10 kt late in the evening, then becoming east after midnight
becoming southeast 10 to 15 kt late. waves 1 to 2 ft. 
.sunday...southeast winds 10 to 20 kt becoming east. waves 1 to
3 ft. 
.sunday night...east winds 10 to 20 kt becoming southeast to
30 kt overnight. chance of showers. waves 3 to 5 ft building to
4 to 6 ft occasionally to 8 ft. 
.monday...southeast winds to 30 kt becoming south. waves 5 to
8 ft occasionally to 10 ft. 
.monday night...south winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft. 
.tuesday...south winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft. 
.wednesday...southwest winds 15 to 25 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 262001
glfls 
expires:202606270800;;953754

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 26 2026

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 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad 29.6 inch low pressure over the northern 
rockies this afternoon further deepens to at least 29.4 inches while 
moving into the high plains into saturday. by sunday afternoon, the 
high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the 29.4 inch low pressure consolidates over 
south dakota. through monday and tuesday, this low slides north to 
lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz264-270800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt fri jun 26 2026

.late this afternoon...south winds less than 10 knots. waves calm
to 2 feet. 
.tonight...southeast winds less than 10 knots. waves calm to
2 feet. 
.saturday...east winds less than 10 knots increasing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering southeast
after midnight, then backing east late. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a slight chance of showers by mid afternoon.
waves building to 2 to 4 feet. 
.sunday night...southeast winds 15 to 25 knots. a chance of
showers through midnight, then showers likely after midnight.
waves 2 to 4 feet. 
.monday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday night...southeast winds 10 to 20 knots veering south
after midnight. a chance of showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday...south winds 10 to 20 knots veering southwest. a chance
of showers. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers. waves subsiding to calm to 2 feet.

$$

fzus63 kmqt 262001
glfls 
expires:202606270800;;953755

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 26 2026

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 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad 29.6 inch low pressure over the northern 
rockies this afternoon further deepens to at least 29.4 inches while 
moving into the high plains into saturday. by sunday afternoon, the 
high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the 29.4 inch low pressure consolidates over 
south dakota. through monday and tuesday, this low slides north to 
lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz265-270800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt fri jun 26 2026

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southeast winds 5 to 15 knots. patchy dense fog after
midnight. waves calm to 2 feet. 
.saturday...southeast winds 5 to 15 knots backing east in the
afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...southeast winds 10 to 20 knots becoming east 20 to
30 knots by mid afternoon. a slight chance of showers by mid
afternoon. waves building to 3 to 5 feet occasionally to 7 feet. 
.sunday night...southeast winds 15 to 25 knots. a chance of
showers through midnight, then showers likely after midnight.
waves subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.monday...southeast winds 15 to 25 knots. waves 3 to 5 feet
occasionally to 7 feet. 
.monday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of showers. waves
subsiding to 1 to 3 feet. 
.tuesday...south winds 10 to 20 knots veering southwest. a chance
of showers and thunderstorms. waves subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 262001
glfls 
expires:202606270800;;953756

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 26 2026

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 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad 29.6 inch low pressure over the northern 
rockies this afternoon further deepens to at least 29.4 inches while 
moving into the high plains into saturday. by sunday afternoon, the 
high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the 29.4 inch low pressure consolidates over 
south dakota. through monday and tuesday, this low slides north to 
lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz266-270800-
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 edt fri jun 26 2026

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...east winds less than 10 knots veering southeast after
midnight. patchy dense fog after midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then increasing to 5 to 15 knots late.
waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering southeast
after midnight, then backing east late. waves calm to 2 feet. 
.sunday...southeast winds 10 to 20 knots backing east by mid
afternoon. waves building to 2 to 4 feet. 
.sunday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of showers through
midnight, then showers likely after midnight. waves building to
3 to 5 feet occasionally to 7 feet. 
.monday...southeast winds 20 to 30 knots. waves 3 to 5 feet
occasionally to 7 feet. 
.monday night...southeast winds 20 to 30 knots becoming south
15 to 25 knots after midnight. a chance of showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...south winds 10 to 20 knots veering southwest. a chance
of showers. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.wednesday...southwest winds 5 to 15 knots. a chance of showers.
waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 262001
glfls 
expires:202606270800;;953757

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 26 2026

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 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad 29.6 inch low pressure over the northern 
rockies this afternoon further deepens to at least 29.4 inches while 
moving into the high plains into saturday. by sunday afternoon, the 
high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the 29.4 inch low pressure consolidates over 
south dakota. through monday and tuesday, this low slides north to 
lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz267-270800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt fri jun 26 2026

.late this afternoon...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds less than 10 knots veering southeast after
midnight, then becoming north 5 to 15 knots late. patchy fog
through midnight. waves calm to 2 feet. 
.saturday...northeast winds less than 10 knots backing north in
the afternoon, then increasing to 5 to 15 knots late. waves calm
to 2 feet. 
.saturday night...east winds 5 to 15 knots diminishing to less
than 10 knots after midnight, then increasing to 5 to 15 knots
late. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots. waves calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of showers. waves
building to 2 to 4 feet. 
.monday...southeast winds 15 to 25 knots. a chance of showers.
waves building to 3 to 5 feet occasionally to 7 feet. 
.monday night...southeast winds 15 to 25 knots veering south
after midnight. a chance of showers. waves subsiding to 2 to
4 feet. 
.tuesday...south winds 10 to 20 knots. a chance of showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.wednesday...southwest winds 5 to 15 knots. a chance of showers.
waves calm to 2 feet. 

$$

fzus63 kmqt 262001
glfls 
expires:202606270800;;953752

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 26 2026

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 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad 29.6 inch low pressure over the northern 
rockies this afternoon further deepens to at least 29.4 inches while 
moving into the high plains into saturday. by sunday afternoon, the 
high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the 29.4 inch low pressure consolidates over 
south dakota. through monday and tuesday, this low slides north to 
lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz162-270800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt fri jun 26 2026 /300 pm cdt fri jun 26 2026/

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight, then veering east late. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots becoming northeast 10 to
20 knots in the afternoon. waves building to 1 to 3 feet. 
.saturday night...east winds 10 to 20 knots becoming northeast
5 to 15 knots after midnight, then increasing to 10 to 20 knots
late. waves subsiding to calm to 2 feet. 
.sunday...east winds 10 to 20 knots becoming northeast 15 to
25 knots by mid afternoon. a chance of showers. a slight chance
of thunderstorms by mid afternoon. waves building to 2 to 4 feet.
.sunday night...east winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. showers likely and a chance of
thunderstorms. waves subsiding to 1 to 3 feet. 
.monday...northeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.monday night...northeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a chance of showers and
thunderstorms. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots becoming west 10 to
20 knots. a chance of showers. waves subsiding to calm to 2 feet.
.wednesday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers and thunderstorms. waves calm to
2 feet. 

$$

fzus63 kmqt 262001
glfls 
expires:202606270800;;953753

open lake forecast for lake superior
national weather service marquette mi
400 pm edt fri jun 26 2026

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 30.1 inch high remains over lake superior today into sunday 
morning. meanwhile, broad 29.6 inch low pressure over the northern 
rockies this afternoon further deepens to at least 29.4 inches while 
moving into the high plains into saturday. by sunday afternoon, the 
high over lake superior retreats eastward but keeps 30.0 inch 
ridging over the upper great lakes while the low pressure remains 
over the plains. the high pressure then shifts over to lake ontario 
by monday morning as the 29.4 inch low pressure consolidates over 
south dakota. through monday and tuesday, this low slides north to 
lake winnipeg while the 30.1 inch high shifts off the east coast. 
this progressively strengthens troughing over lake superior to 29.8 
inches by monday evening, remaining that way until tuesday morning. 
a shortwave low lifting from colorado then deepens the troughing 
over lake superior to 29.7 inches by tuesday evening as it heads 
toward northern ontario. with a 30.1 inch high developing over the 
southeastern u.s. on wednesday, we could see 29.9 inch ridging 
return over lake superior late in the day.  




lsz263-270800-
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 edt fri jun 26 2026

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots becoming southeast less than
10 knots late. waves calm to 2 feet. 
.saturday...east winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon, then increasing to 10 to 20 knots
late. waves calm to 2 feet. 
.saturday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering southeast late. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.sunday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers by mid afternoon. waves
building to 2 to 4 feet. 
.sunday night...east winds 15 to 25 knots becoming southeast
10 to 20 knots after midnight. a chance of showers through
midnight. showers likely after midnight. waves 2 to 4 feet. 
.monday...east winds 10 to 20 knots. waves 2 to 4 feet. 
.monday night...east winds 10 to 20 knots veering south after
midnight. a chance of showers through midnight. a chance of
thunderstorms. showers likely after midnight. waves 2 to 4 feet. 
.tuesday...southwest winds 10 to 20 knots. a chance of showers.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots. a chance of showers.
waves subsiding to calm to 2 feet, then building to 1 to 3 feet. 

$$