fzus63 kmkx 081409
glflm 
expires:202605082115;;220444

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 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.

modest to breezy south winds will develop today before shifting 
southwest late tonight, and west on saturday with the cold 
frontal passage. light 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.


lmz261-362-364-366-563-565-567-868-082115-
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 am cdt fri may 8 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...south winds 15 to 25 kt becoming southwest. scattered
rain showers. waves 3 to 5 ft. 
.saturday...west winds 10 to 20 kt becoming northwest. scattered
rain showers in the morning. 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 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. 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 081409
glflm 
expires:202605082115;;220445

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 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.

modest to breezy south winds will develop today before shifting 
southwest late tonight, and west on saturday with the cold 
frontal passage. light 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.


lmz080-669-671-673-675-777-779-870-872-874-876-878-082115-
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 am cdt fri may 8 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds 10 to 20 kt increasing to 15 to
25 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...south winds 15 to 25 kt becoming southwest. scattered
sprinkles overnight. 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 15 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.sunday...north winds 10 to 15 kt becoming northeast. waves 1 to
2 ft. 
.sunday night...northeast winds 5 to 10 kt. waves 1 to 2 ft.
.monday...northeast winds 10 to 15 kt increasing to 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.  

$$