fzus63 kdtx 080744
glflh 
expires:202605081545;;206966

open lake forecast for lake huron
national weather service detroit/pontiac mi
344 am edt fri may 8 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...light and variable winds today organize out of the
southwest saturday. breezy southwest flow is expected ahead of a
cold front that sweeps across the area saturday night bringing
shower and thunderstorm chances to the great lakes.


lhz361-362-081545-
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-
344 am edt fri may 8 2026

.today...southwest winds 10 to 15 knots backing to the southeast 
late in the afternoon. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots increasing to 10 to
15 knots after midnight. waves 1 to 3 feet. 
.saturday...south winds 10 to 15 knots. showers likely in the
morning...then a chance of showers in the afternoon. waves 3 to
5 feet building to 4 to 6 feet early in the afternoon. waves
occasionally around 8 feet. 
.saturday night...northwest winds 15 to 20 knots. waves 5 to
7 feet. waves occasionally around 10 feet. 
.sunday...west winds 10 to 15 knots becoming northwest 15 to
20 knots late in the evening. waves 4 to 6 feet subsiding to 2 to
4 feet. waves occasionally around 8 feet. 
.monday...northwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet . 
.tuesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southeast 5 to
10 knots . a chance of showers by midnight. waves 2 feet or less.


$$

fzus63 kdtx 080744
glflh 
expires:202605081545;;206967

open lake forecast for lake huron
national weather service detroit/pontiac mi
344 am edt fri may 8 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...light and variable winds today organize out of the
southwest saturday. breezy southwest flow is expected ahead of a
cold front that sweeps across the area saturday night bringing
shower and thunderstorm chances to the great lakes.


lhz363-462>464-081545-
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-
344 am edt fri may 8 2026

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


$$

fzus63 kmkx 080805
glflm 
expires:202605081530;;207730

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cdt fri may 8 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...

weak low pressure around 29.6 inches will shift southeast from
northern minnesota to western lake superior today, then across the
upper peninsula of michigan tonight and further to the southeast
on saturday. the low will drag a cold front across the region 
during this time, exiting to the southeast of the lake later on 
saturday.

winds will become south and increase today into this evening, 
before shifting southwest later tonight and west on saturday.
northwest to north winds should then occur saturday night, as the
front exits the region. 

high pressure around 30.3 inches is then expected to move
southeast across the region sunday night into monday. relatively 
light and variable winds are expected through this period.


lmz261-362-364-366-563-565-567-868-081530-
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-
305 am cdt fri may 8 2026

sheboygan wi to pentwater mi north...

.today...southwest winds 5 to 10 kt becoming south 10 to 20 kt.
waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...south winds 10 to 20 kt becoming southwest 15 to
25 kt. slight chance of rain showers. waves 3 to 5 ft. 
.saturday...southwest winds 10 to 20 kt becoming west. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.saturday night...north winds 10 to 20 kt becoming northwest
10 to 15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.sunday...west winds 10 to 15 kt increasing to 10 to 20 kt. waves
1 to 3 ft. 
.sunday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 2 ft. 
.monday...northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 to 2 ft. 
.tuesday...southeast winds 10 to 20 kt increasing to 15 to 25 kt.
chance of rain showers. waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft.  

$$

fzus63 kmkx 080805
glflm 
expires:202605081530;;207731

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cdt fri may 8 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...

weak low pressure around 29.6 inches will shift southeast from
northern minnesota to western lake superior today, then across the
upper peninsula of michigan tonight and further to the southeast
on saturday. the low will drag a cold front across the region 
during this time, exiting to the southeast of the lake later on 
saturday.

winds will become south and increase today into this evening, 
before shifting southwest later tonight and west on saturday.
northwest to north winds should then occur saturday night, as the
front exits the region. 

high pressure around 30.3 inches is then expected to move
southeast across the region sunday night into monday. relatively 
light and variable winds are expected through this period.


lmz080-669-671-673-675-777-779-870-872-874-876-878-081530-
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-
305 am cdt fri may 8 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 5 to 10 kt becoming south late this
morning, then becoming 10 to 20 kt early this afternoon becoming
south 10 to 20 kt late. waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...south winds 10 to 20 kt becoming southwest. waves 3 to
5 ft. 
.saturday...southwest winds 10 to 20 kt becoming west. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.saturday night...northwest winds 10 to 20 kt becoming north 5 to
10 kt overnight. waves 1 to 3 ft. 
.sunday...north winds 10 to 15 kt becoming northeast. waves 1 to
2 ft. 
.sunday night...north winds 5 to 10 kt. waves 1 to 2 ft. 
.monday...north winds 10 to 15 kt becoming northeast 10 to 20 kt.
waves 1 to 3 ft. 
.tuesday...southeast winds 15 to 25 kt increasing to 30 kt. rain
showers likely. waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft.  

$$

fzus63 kmqt 080801
glfls 
expires:202605082000;;207434

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri may 8 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... 

weak troughing of around 29.8 inches this morning deepens to 29.6 
inches by this evening thanks to a 29.8 inch low currently over the 
black hills phasing with a 29.3 inch low over hudson bay. this 
eventually creates a 29.5 inch low over lake superior saturday 
morning that ejects eastward into ontario and eventually western 
quebec by saturday afternoon. meanwhile, a 30.1 inch high over the 
canadian prairies begins to push eastward on saturday. with the high 
digging into the northern plains at 30.3 inches saturday night into 
sunday morning, expect the ridging over lake superior to steadily 
increase with time early next week. by monday afternoon, the 30.3 
inch high moves over the western great lakes. in its wake, a 29.7 
inch clipper low digs through the canadian prairies into the upper 
midwest, arriving over the upper mississippi valley by tuesday.



lsz162-082000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt fri may 8 2026 /301 am cdt fri may 8 2026/

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots. sprinkles by mid
afternoon. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots backing west after midnight,
then becoming northwest 10 to 20 knots late. a chance of rain
showers through midnight. waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. waves calm to 2 feet. 
.saturday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing east. waves calm to
2 feet. 
.tuesday...east winds 10 to 20 knots becoming north 5 to
15 knots. a chance of rain showers. waves calm to 2 feet. 

$$

fzus63 kmqt 080801
glfls 
expires:202605082000;;207435

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri may 8 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... 

weak troughing of around 29.8 inches this morning deepens to 29.6 
inches by this evening thanks to a 29.8 inch low currently over the 
black hills phasing with a 29.3 inch low over hudson bay. this 
eventually creates a 29.5 inch low over lake superior saturday 
morning that ejects eastward into ontario and eventually western 
quebec by saturday afternoon. meanwhile, a 30.1 inch high over the 
canadian prairies begins to push eastward on saturday. with the high 
digging into the northern plains at 30.3 inches saturday night into 
sunday morning, expect the ridging over lake superior to steadily 
increase with time early next week. by monday afternoon, the 30.3 
inch high moves over the western great lakes. in its wake, a 29.7 
inch clipper low digs through the canadian prairies into the upper 
midwest, arriving over the upper mississippi valley by tuesday.



lsz263-082000-
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-
401 am edt fri may 8 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves building to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots veering northwest late.
a chance of rain showers through midnight. waves subsiding to
calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.saturday night...northwest winds 5 to 15 knots. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing southeast. waves calm
to 2 feet. 
.tuesday...east winds 5 to 15 knots backing north. a chance of
rain showers. waves calm to 2 feet. 

$$

fzus63 kmqt 080801
glfls 
expires:202605082000;;207436

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri may 8 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... 

weak troughing of around 29.8 inches this morning deepens to 29.6 
inches by this evening thanks to a 29.8 inch low currently over the 
black hills phasing with a 29.3 inch low over hudson bay. this 
eventually creates a 29.5 inch low over lake superior saturday 
morning that ejects eastward into ontario and eventually western 
quebec by saturday afternoon. meanwhile, a 30.1 inch high over the 
canadian prairies begins to push eastward on saturday. with the high 
digging into the northern plains at 30.3 inches saturday night into 
sunday morning, expect the ridging over lake superior to steadily 
increase with time early next week. by monday afternoon, the 30.3 
inch high moves over the western great lakes. in its wake, a 29.7 
inch clipper low digs through the canadian prairies into the upper 
midwest, arriving over the upper mississippi valley by tuesday.



lsz264-082000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt fri may 8 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots. waves building to 1 to
3 feet. 
.tonight...south winds 5 to 15 knots becoming southwest less than
10 knots after midnight, then becoming north 5 to 15 knots late.
sprinkles through midnight. waves subsiding to calm to 2 feet. 
.saturday...north winds 5 to 15 knots backing west late. waves
calm to 2 feet. 
.saturday night...west winds 5 to 15 knots veering northwest
after midnight. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing south. waves calm
to 2 feet. 
.tuesday...southeast winds 5 to 15 knots backing east. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 080801
glfls 
expires:202605082000;;207437

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri may 8 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... 

weak troughing of around 29.8 inches this morning deepens to 29.6 
inches by this evening thanks to a 29.8 inch low currently over the 
black hills phasing with a 29.3 inch low over hudson bay. this 
eventually creates a 29.5 inch low over lake superior saturday 
morning that ejects eastward into ontario and eventually western 
quebec by saturday afternoon. meanwhile, a 30.1 inch high over the 
canadian prairies begins to push eastward on saturday. with the high 
digging into the northern plains at 30.3 inches saturday night into 
sunday morning, expect the ridging over lake superior to steadily 
increase with time early next week. by monday afternoon, the 30.3 
inch high moves over the western great lakes. in its wake, a 29.7 
inch clipper low digs through the canadian prairies into the upper 
midwest, arriving over the upper mississippi valley by tuesday.



lsz265-082000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt fri may 8 2026

.early this morning...southwest winds 10 to 20 knots. waves calm
to 2 feet. 
.today...southwest winds 10 to 20 knots backing south late. waves
calm to 2 feet. 
.tonight...south winds 10 to 20 knots veering west late. a chance
of rain showers. waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.saturday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...northwest winds 15 to 25 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.sunday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.monday...northwest winds 5 to 15 knots backing southeast. waves
calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of rain showers. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 080801
glfls 
expires:202605082000;;207438

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri may 8 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... 

weak troughing of around 29.8 inches this morning deepens to 29.6 
inches by this evening thanks to a 29.8 inch low currently over the 
black hills phasing with a 29.3 inch low over hudson bay. this 
eventually creates a 29.5 inch low over lake superior saturday 
morning that ejects eastward into ontario and eventually western 
quebec by saturday afternoon. meanwhile, a 30.1 inch high over the 
canadian prairies begins to push eastward on saturday. with the high 
digging into the northern plains at 30.3 inches saturday night into 
sunday morning, expect the ridging over lake superior to steadily 
increase with time early next week. by monday afternoon, the 30.3 
inch high moves over the western great lakes. in its wake, a 29.7 
inch clipper low digs through the canadian prairies into the upper 
midwest, arriving over the upper mississippi valley by tuesday.



lsz266-082000-
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-
401 am edt fri may 8 2026

.early this morning...southwest winds 10 to 20 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots backing south late. waves
calm to 2 feet. 
.tonight...south winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then becoming northwest 10 to 20 knots
late. a chance of rain showers. waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...northwest winds 15 to 25 knots. waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet. 
.sunday...northwest winds 15 to 25 knots. waves 2 to 4 feet. 
.sunday night...northwest winds 10 to 20 knots. waves subsiding
to 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots backing south. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots becoming east 5 to
15 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 080801
glfls 
expires:202605082000;;207439

open lake forecast for lake superior
national weather service marquette mi
401 am edt fri may 8 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... 

weak troughing of around 29.8 inches this morning deepens to 29.6 
inches by this evening thanks to a 29.8 inch low currently over the 
black hills phasing with a 29.3 inch low over hudson bay. this 
eventually creates a 29.5 inch low over lake superior saturday 
morning that ejects eastward into ontario and eventually western 
quebec by saturday afternoon. meanwhile, a 30.1 inch high over the 
canadian prairies begins to push eastward on saturday. with the high 
digging into the northern plains at 30.3 inches saturday night into 
sunday morning, expect the ridging over lake superior to steadily 
increase with time early next week. by monday afternoon, the 30.3 
inch high moves over the western great lakes. in its wake, a 29.7 
inch clipper low digs through the canadian prairies into the upper 
midwest, arriving over the upper mississippi valley by tuesday.



lsz267-082000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt fri may 8 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots backing south late. waves
calm to 2 feet. 
.tonight...south winds 10 to 20 knots. a chance of rain showers.
flurries after midnight. waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots increasing to 20 to
30 knots late. sprinkles through early afternoon. waves building
to 3 to 5 feet occasionally to 7 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.sunday...northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots backing south. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots backing east. waves calm
to 2 feet. 

$$