fzus63 kmkx 030201
glflm 
expires:202608030930;;527732

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
901 pm cdt sun aug 2 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...

breezy north winds and high waves are expected to gradually
subside tonight over central and southern lake michigan as low 
pressure around 29.7 inches into the eastern ohio valley and a 
ridge of high pressure around 30.0 inches stretches from james bay
to the upper mississippi river valley. high pressure around 30.0 
inches then builds across lake michigan on monday and slowly moves
toward the lower great lakes monday night. winds remain light and
variable through this time. next chances for thunderstorms return
tuesday night through wednesday night as a weak front moves 
southward through the region.


lmz261-362-364-366-563-565-567-868-030930-
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-
901 pm cdt sun aug 2 2026

sheboygan wi to pentwater mi north...

.rest of tonight...north winds 15 to 25 kt becoming northeast
5 to 10 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to
2 to 4 ft. 
.monday...north winds 5 to 10 kt backing to southwest. waves 1 to
2 ft. 
.monday night...south winds 10 to 15 kt. waves 1 to 2 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft building to 3 to 5 ft. 
.tuesday night...southwest winds 15 to 25 kt diminishing to 10 to
15 kt overnight. chance of showers in the evening, then showers
likely overnight. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...northwest winds 10 to 15 kt becoming west. chance of
showers in the morning. waves 1 to 3 ft. 
.wednesday night...east winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 ft or less. 
.thursday...south winds 10 to 15 kt becoming southwest. waves
1 to 2 ft. 
.friday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft.  

$$

fzus63 kmkx 030201
glflm 
expires:202608030930;;527733

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
901 pm cdt sun aug 2 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...

breezy north winds and high waves are expected to gradually
subside tonight over central and southern lake michigan as low 
pressure around 29.7 inches into the eastern ohio valley and a 
ridge of high pressure around 30.0 inches stretches from james bay
to the upper mississippi river valley. high pressure around 30.0 
inches then builds across lake michigan on monday and slowly moves
toward the lower great lakes monday night. winds remain light and
variable through this time. next chances for thunderstorms return
tuesday night through wednesday night as a weak front moves 
southward through the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-030930-
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-
901 pm cdt sun aug 2 2026

sheboygan wi to pentwater mi south...

.rest of tonight...north winds to 30 kt diminishing to 15 to
25 kt late this evening, then becoming northeast 10 to 20 kt
after midnight diminishing to 10 to 15 kt late. waves 6 to 9 ft
occasionally to 12 ft subsiding to 3 to 5 ft. 
.monday...northeast winds 5 to 10 kt becoming north 10 to 15 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.monday night...northeast winds 10 to 15 kt veering to south 5 to
10 kt. waves 1 to 2 ft. 
.tuesday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.tuesday night...south winds 10 to 20 kt becoming southwest 10 to
15 kt. chance of showers overnight. waves 3 to 5 ft subsiding to
1 to 3 ft. 
.wednesday...west winds 10 to 15 kt becoming southwest. chance of
showers. waves 1 to 3 ft. 
.wednesday night...east winds 5 to 10 kt veering to southwest.
showers likely with a chance of thunderstorms. waves 1 to 2 ft.
.thursday...north winds 5 to 10 kt increasing to 10 to 15 kt.
chance of showers. waves 1 ft or less. 
.friday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft.  

$$