fzus63 kmkx 280159
glflm 
expires:202605280915;;763172

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm 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...

high pressure around 30.3 inches will continue to build southward
into the great lakes overnight, with a backdoor cold front
shifting southwest of the area. behind this front, gusty north
northeast winds are expected, bringing building waves to the
southwestern portions of the lake. 

winds will gradually diminish through thursday, as the high moves
over the region. the high pressure system around 30.2 inches will
remain in place through the weekend, with a few additional weak 
cold fronts bringing brisk northeasterly winds friday night into 
saturday and sunday night in monday. high pressure around 30.2
inches generally remains in place through early next week, with 
light and variable winds expected.


lmz261-362-364-366-563-565-567-868-280915-
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 pm cdt wed may 27 2026

sheboygan wi to pentwater mi north...

.rest of tonight...north winds 10 to 20 kt increasing to 30 kt,
then becoming northeast 10 to 20 kt late. waves 2 to 4 ft
building to 3 to 5 ft. 
.thursday...northeast winds 10 to 20 kt becoming north 15 to
25 kt. waves 2 to 4 ft. 
.thursday night...northwest winds 10 to 20 kt diminishing to 5 to
10 kt late in the evening, then becoming west after midnight
becoming west 5 to 10 kt late. 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 2 to 4 ft. 
.saturday night...northeast winds 15 to 25 kt veering to
southeast 5 to 10 kt. waves 2 to 4 ft. 
.sunday...south winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 to 2 ft. 
.monday...northeast winds 10 to 15 kt increasing to 15 to 25 kt.
waves 1 to 2 ft building to 2 to 4 ft.  

$$

fzus63 kmkx 280159
glflm 
expires:202605280915;;763173

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm 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...

high pressure around 30.3 inches will continue to build southward
into the great lakes overnight, with a backdoor cold front
shifting southwest of the area. behind this front, gusty north
northeast winds are expected, bringing building waves to the
southwestern portions of the lake. 

winds will gradually diminish through thursday, as the high moves
over the region. the high pressure system around 30.2 inches will
remain in place through the weekend, with a few additional weak 
cold fronts bringing brisk northeasterly winds friday night into 
saturday and sunday night in monday. high pressure around 30.2
inches generally remains in place through early next week, with 
light and variable winds expected.


lmz080-669-671-673-675-777-779-870-872-874-876-878-280915-
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 pm cdt wed may 27 2026

sheboygan wi to pentwater mi south...

.rest of tonight...north winds 15 to 25 kt. waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 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
10 to 15 kt after midnight, then becoming east late. waves 3 to
5 ft subsiding to 1 to 3 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 2 to 4 ft. 
.saturday night...northeast winds 10 to 20 kt becoming east 10 to
15 kt. waves 2 to 4 ft. 
.sunday...southeast winds 5 to 10 kt backing to northeast 10 to
15 kt. waves 1 to 3 ft. 
.monday...north winds 10 to 15 kt increasing to 15 to 25 kt.
waves 1 to 2 ft building to 2 to 4 ft.  

$$