fzus63 kmkx 290212
glflm 
expires:202608290930;;529262

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
912 pm cdt fri aug 28 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 will gradually move east of the
lower great lakes on saturday, while low pressure deepens to 
around 29.6 inches in the central great plains. this will support
modest to breezy southerly winds from saturday afternoon through 
monday as the low will remain well to the west. scattered 
thunderstorms will occur at times from saturday night into next 
week. a weak cold front will finally arrive late tuesday night and
wednesday with light northerly winds eventually taking hold. 


lmz261-362-364-366-563-565-567-868-290930-
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-
912 pm cdt fri aug 28 2026

sheboygan wi to pentwater mi north...

.rest of tonight...south winds 10 to 20 kt becoming southwest.
waves 2 to 4 ft. 
.saturday...southwest winds 10 to 20 kt increasing to 30 kt.
chance of showers in the afternoon. waves 2 to 4 ft. 
.saturday night...south winds 20 to 30 kt diminishing to 15 to
25 kt. chance of showers. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...south winds 15 to 25 kt. chance of showers in the
morning, then chance of showers and thunderstorms in the
afternoon. waves 4 to 6 ft occasionally to 8 ft. 
.sunday night...southeast winds 10 to 20 kt. chance of showers in
the evening. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.monday...south winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers. waves 3 to 5 ft. 
.monday night...south winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 3 to 5 ft. 
.tuesday...southwest winds 10 to 20 kt. chance of showers. waves
1 to 3 ft. 
.wednesday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 290212
glflm 
expires:202608290930;;529263

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
912 pm cdt fri aug 28 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 will gradually move east of the
lower great lakes on saturday, while low pressure deepens to 
around 29.6 inches in the central great plains. this will support
modest to breezy southerly winds from saturday afternoon through 
monday as the low will remain well to the west. scattered 
thunderstorms will occur at times from saturday night into next 
week. a weak cold front will finally arrive late tuesday night and
wednesday with light northerly winds eventually taking hold. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-290930-
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-
912 pm cdt fri aug 28 2026

sheboygan wi to pentwater mi south...

.rest of tonight...southeast winds 10 to 20 kt becoming
southwest. waves 2 to 4 ft. 
.saturday...southwest winds 10 to 20 kt becoming south 15 to
25 kt. chance of showers in the afternoon. waves 2 to 4 ft. 
.saturday night...south winds 10 to 20 kt increasing to 15 to
25 kt. chance of showers. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...south winds 15 to 25 kt. chance of showers. waves 4 to
6 ft occasionally to 8 ft. 
.sunday night...south winds 10 to 20 kt. waves 3 to 5 ft
subsiding to 2 to 4 ft. 
.monday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.monday night...south winds 10 to 20 kt becoming southwest. waves
3 to 5 ft. 
.tuesday...southwest winds 10 to 15 kt. chance of showers. waves
2 to 4 ft. 
.wednesday...southwest winds 10 to 15 kt. waves 1 to 2 ft.  

$$