fzus63 kmkx 021345
glflm 
expires:202608022115;;499438

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
845 am 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 today and this 
evening over central and southern lake michigan. this will occur 
as low pressure around 29.7 inches stretching from central indiana
into western ohio will slowly move into the lower great lakes and
eastern ohio by early this evening, while a ridge of high 
pressure around 30.0 inches stretches from james bay to lake 
superior to the upper mississippi river valley. winds will 
gradually diminish late tonight. 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.


lmz261-362-364-366-563-565-567-868-022115-
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-
845 am cdt sun aug 2 2026

sheboygan wi to pentwater mi north...

.rest of today...northeast winds 10 to 20 kt becoming north to
30 kt. waves 4 to 7 ft occasionally to 9 ft. 
.tonight...north winds to 30 kt becoming northeast 5 to 10 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.monday...northeast winds 5 to 10 kt backing to southwest. waves
1 to 2 ft. 
.monday night...south winds 5 to 10 kt increasing to 10 to 15 kt
overnight. waves 1 to 2 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
1 to 3 ft building to 2 to 4 ft. 
.tuesday night...southwest winds 15 to 25 kt diminishing to 10 to
15 kt. showers likely. waves 2 to 4 ft. 
.wednesday...northwest winds 10 to 15 kt becoming west. chance of
showers. waves 1 to 2 ft. 
.thursday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 021345
glflm 
expires:202608022115;;499439

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
845 am 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 today and this 
evening over central and southern lake michigan. this will occur 
as low pressure around 29.7 inches stretching from central indiana
into western ohio will slowly move into the lower great lakes and
eastern ohio by early this evening, while a ridge of high 
pressure around 30.0 inches stretches from james bay to lake 
superior to the upper mississippi river valley. winds will 
gradually diminish late tonight. 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.


lmz080-669-671-673-675-777-779-870-872-874-876-878-022115-
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-
845 am cdt sun aug 2 2026

sheboygan wi to pentwater mi south...

.rest of today...northeast winds 15 to 25 kt becoming north to
30 kt. waves 5 to 8 ft occasionally to 10 ft. 
.tonight...north winds to 30 kt diminishing to 15 to 25 kt late
in the evening, then becoming northeast 10 to 20 kt after
midnight diminishing to 10 to 15 kt late. waves 5 to 8 ft
occasionally to 10 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 2 ft building to 2 to 4 ft. 
.tuesday night...south winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 2 to 4 ft. 
.wednesday...west winds 10 to 15 kt becoming southwest. chance of
showers. waves 1 to 2 ft. 
.thursday...southwest winds 5 to 10 kt becoming south 10 to
15 kt. waves 1 ft or less.  

$$