fzus63 kmkx 271359
glflm 
expires:202605272115;;734558

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cdt wed may 27 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...

a backdoor cold front will accelerate southwestward across lake
michigan this afternoon with brisk northeast winds up to 30 kt 
developing. winds will remain north northeast through thursday, 
gradually weakening thursday night as high pressure around 30.2 
inches builds into the great lakes region. 

a brief period of west to southwest winds over northern parts of
the lake may occur friday, with lighter winds to the south, as the
high moves slowly southeast of the area. an additional backdoor 
cold front later friday night into saturday morning will allow 
for brisk north to northeast winds once again through saturday. 
winds should then weaken and remain fairly light through early 
next week, under high pressure around 30.1 inches.


lmz261-362-364-366-563-565-567-868-272115-
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-
859 am cdt wed may 27 2026

sheboygan wi to pentwater mi north...

.rest of today...north winds 5 to 10 kt increasing to 15 to
25 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...north winds 15 to 25 kt becoming northeast 10 to
20 kt. waves 3 to 5 ft. 
.thursday...northeast winds 10 to 20 kt becoming north 15 to
25 kt. waves 3 to 5 ft. 
.thursday night...northwest winds 10 to 20 kt becoming west 5 to
10 kt overnight. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.friday night...southeast winds 10 to 20 kt backing to east.
waves 1 to 3 ft. 
.saturday...east winds 10 to 20 kt becoming northeast 15 to
25 kt. waves 1 to 3 ft building to 3 to 5 ft. 
.sunday...southwest winds 5 to 10 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 271359
glflm 
expires:202605272115;;734559

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cdt wed may 27 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...

a backdoor cold front will accelerate southwestward across lake
michigan this afternoon with brisk northeast winds up to 30 kt 
developing. winds will remain north northeast through thursday, 
gradually weakening thursday night as high pressure around 30.2 
inches builds into the great lakes region. 

a brief period of west to southwest winds over northern parts of
the lake may occur friday, with lighter winds to the south, as the
high moves slowly southeast of the area. an additional backdoor 
cold front later friday night into saturday morning will allow 
for brisk north to northeast winds once again through saturday. 
winds should then weaken and remain fairly light through early 
next week, under high pressure around 30.1 inches.


lmz080-669-671-673-675-777-779-870-872-874-876-878-272115-
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-
859 am cdt wed may 27 2026

sheboygan wi to pentwater mi south...

.rest of today...north winds 5 to 10 kt increasing to 15 to
25 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.tonight...north winds 15 to 25 kt. waves 3 to 5 ft building to
5 to 8 ft occasionally to 10 ft. 
.thursday...northeast winds 10 to 20 kt becoming north 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.thursday night...north winds 10 to 20 kt becoming northeast 5 to
10 kt overnight. waves 3 to 5 ft. 
.friday...southwest winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.friday night...southeast winds 5 to 10 kt becoming east. waves
1 to 2 ft. 
.saturday...east winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 to 3 ft building to 3 to 5 ft. 
.sunday...east winds 5 to 10 kt backing to north 10 to 20 kt.
waves 1 to 3 ft subsiding to 1 to 2 ft.  

$$