fzus63 kmkx 211400
glflm 
expires:202606212115;;127970

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 am cdt sun jun 21 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...

low pressure around 29.5 inches will track eastward from the 
central great plains into central illinois early this evening, 
then into ohio by monday. this will bring light easterly winds 
through the daytime hours today, becoming breezy northeast to 
north winds over the southern portion of the lake tonight and 
monday. lighter northerly winds return late monday evening into 
tuesday as high pressure around 30.1 inches builds into the 
region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-212115-
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-
900 am cdt sun jun 21 2026

sheboygan wi to pentwater mi south...

.rest of today...east winds 5 to 10 kt increasing to 10 to 20 kt.
chance of showers this afternoon. waves nearly calm building to
1 to 2 ft. 
.tonight...east winds 20 to 30 kt becoming northeast. showers in 
the evening, then showers likely overnight. waves 3 to 5 ft 
building to 4 to 6 ft occasionally to 8 ft. 
.monday...northeast winds 20 to 30 kt becoming north. waves 4 to
7 ft occasionally to 9 ft. 
.monday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft. 
.tuesday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday night...northeast winds 10 to 15 kt veering to
southwest. waves 1 to 2 ft. 
.wednesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 3 ft. 
.thursday...west winds 10 to 15 kt becoming northwest 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 211400
glflm 
expires:202606212115;;127969

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 am cdt sun jun 21 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...

low pressure around 29.5 inches will track eastward from the 
central great plains into central illinois early this evening, 
then into ohio by monday. this will bring light easterly winds 
through the daytime hours today, becoming breezy northeast to 
north winds over the southern portion of the lake tonight and 
monday. lighter northerly winds return late monday evening into 
tuesday as high pressure around 30.1 inches builds into the 
region.


lmz261-362-364-366-563-565-567-868-212115-
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-
900 am cdt sun jun 21 2026

sheboygan wi to pentwater mi north...

.rest of today...south winds less than 10 kt becoming southeast.
areas of fog through noon. waves 1 ft or less. 
.tonight...northeast winds 5 to 10 kt increasing to 10 to 15 kt
after midnight, then becoming north 10 to 20 kt late. waves 1 to
2 ft building to 1 to 3 ft. 
.monday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.monday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.tuesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday night...north winds 5 to 10 kt veering to southeast.
waves 1 ft or less. 
.wednesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 3 ft. 
.thursday...north winds 10 to 15 kt becoming northwest 10 to
20 kt. waves 1 to 2 ft.  

$$