fzus63 kmkx 310203
glflm 
expires:202605310930;;924622

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 pm cdt sat may 30 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 over the upper great lakes will strengthen to 
around 30.2 inches overnight and continue to dominate the weather
pattern through tuesday. lighter winds are expected sunday. then 
breezy easterly winds will return monday into monday night before
weakening for tuesday. winds are to become more southerly on 
wednesday as the high pressure breaks down and exits the region 
while low pressure develops over the plains. look for increasing
southerly winds thursday as low pressure of 29.7 inches crosses
the northern plains.


lmz261-362-364-366-563-565-567-868-310930-
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-
903 pm cdt sat may 30 2026

sheboygan wi to pentwater mi north...

.rest of tonight...northeast winds 10 to 20 kt veering to south.
waves 1 to 3 ft. 
.sunday...south winds 10 to 15 kt becoming southwest. waves 1 to
3 ft. 
.sunday night...southwest winds 10 to 15 kt backing to northeast.
waves 1 to 2 ft. 
.monday...northeast winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 2 to 4 ft. 
.monday night...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft. 
.tuesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft. 
.tuesday night...northwest winds 10 to 20 kt backing to south
5 to 10 kt. waves 1 to 3 ft subsiding to 1 ft or less. 
.wednesday...south winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft. 
.thursday...south winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 

$$

fzus63 kmkx 310203
glflm 
expires:202605310930;;924623

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 pm cdt sat may 30 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 over the upper great lakes will strengthen to 
around 30.2 inches overnight and continue to dominate the weather
pattern through tuesday. lighter winds are expected sunday. then 
breezy easterly winds will return monday into monday night before
weakening for tuesday. winds are to become more southerly on 
wednesday as the high pressure breaks down and exits the region 
while low pressure develops over the plains. look for increasing
southerly winds thursday as low pressure of 29.7 inches crosses
the northern plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-310930-
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-
903 pm cdt sat may 30 2026

sheboygan wi to pentwater mi south...

.rest of tonight...northeast winds 10 to 20 kt becoming
southeast. waves 2 to 4 ft. 
.sunday...southeast winds 10 to 20 kt diminishing to 5 to 10 kt
late in the morning, then becoming east early in the afternoon
becoming northeast late. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.sunday night...northeast winds 5 to 10 kt becoming north. waves
1 ft or less. 
.monday...northeast winds 5 to 10 kt becoming north 10 to 20 kt
in the afternoon. waves 1 ft or less building to 1 to 3 ft. 
.monday night...northeast winds 10 to 20 kt. waves 3 to 5 ft. 
.tuesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 2 to 4 ft. 
.tuesday night...north winds 10 to 20 kt becoming northeast 5 to
10 kt. waves 2 to 4 ft. 
.wednesday...east winds 5 to 10 kt becoming southeast. waves 1 to
2 ft. 
.thursday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft building to 3 to 5 ft.  

$$