fzus63 kmkx 081402
glflm 
expires:202610090330;;739256

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt thu oct 8 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...

west to northwest winds will persist today as high pressure 
around 30.1 inches pushes into the region. winds will become 
southerly on friday as the high departs and low pressure around 
29.2 inches develops in the northern plains. the tight pressure 
gradient over lake michigan will produce breezy southerly winds up
to 30 knots from friday night through sunday morning. a few gale 
force gusts may occur in the northern half of the lake saturday 
afternoon and evening. 

lighter winds are expected monday as a weak low pressure trough 
around 29.7 inches slowly moves from minnesota to wisconsin. look 
for gusty northwest winds to develop monday night into 
tuesday after the passage of a cold front as high pressure of 
30.1 inches builds into the upper midwest. 


lmz261-362-364-366-563-565-567-868-090330-
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-
902 am cdt thu oct 8 2026

sheboygan wi to pentwater mi north...

.tonight...northwest winds 10 to 20 kt becoming west 10 to 15 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.friday...west winds 10 to 15 kt backing to south 10 to 20 kt.
waves 1 to 3 ft. 
.friday night...southeast winds 10 to 20 kt becoming south 15 to
25 kt. waves 2 to 4 ft building to 4 to 7 ft occasionally to
9 ft. 
.saturday...south winds to 30 kt increasing to gales to 35 kt.
waves 7 to 10 ft occasionally to 13 ft. 
.saturday night...south gales to 35 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.sunday...south winds to 30 kt. waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 6 ft occasionally to 8 ft. 
.sunday night...south winds 10 to 20 kt becoming southwest. waves
3 to 5 ft subsiding to 2 to 4 ft. 
.monday...southwest winds 10 to 20 kt becoming west 15 to 25 kt.
waves 2 to 4 ft. 
.tuesday...north winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft.  

$$

fzus63 kmkx 081402
glflm 
expires:202610090330;;739257

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt thu oct 8 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...

west to northwest winds will persist today as high pressure 
around 30.1 inches pushes into the region. winds will become 
southerly on friday as the high departs and low pressure around 
29.2 inches develops in the northern plains. the tight pressure 
gradient over lake michigan will produce breezy southerly winds up
to 30 knots from friday night through sunday morning. a few gale 
force gusts may occur in the northern half of the lake saturday 
afternoon and evening. 

lighter winds are expected monday as a weak low pressure trough 
around 29.7 inches slowly moves from minnesota to wisconsin. look 
for gusty northwest winds to develop monday night into 
tuesday after the passage of a cold front as high pressure of 
30.1 inches builds into the upper midwest. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-090330-
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-
902 am cdt thu oct 8 2026

sheboygan wi to pentwater mi south...

.tonight...west winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...south winds 5 to 10 kt becoming southeast 10 to 20 kt.
slight chance of showers in the afternoon. waves 2 to 4 ft. 
.friday night...southeast winds 10 to 20 kt becoming south 15 to
25 kt. waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft. 
.saturday...south winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft. 
.saturday night...south winds to 30 kt diminishing to 15 to
25 kt. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...south winds 10 to 20 kt becoming southeast. waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.sunday night...south winds 10 to 15 kt becoming southwest. waves
1 to 3 ft subsiding to 1 to 2 ft. 
.monday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 2 to 4 ft. 
.tuesday...north gales to 35 kt diminishing to 30 kt. waves 8 to
12 ft occasionally to 16 ft.  

$$