fzus63 kmkx 090556
glflm 
expires:202610091515;;776095

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1256 am cdt fri oct 9 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 30.1 inches will move across the region 
overnight. winds will become southeast on friday and south friday
night, as the high moves to the east and low pressure around 29.2
inches develops 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. gale warnings aren't expected at this time.

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 to north winds to develop monday night into 
tuesday after the passage of a cold front, as high pressure around
30.1 inches builds into the upper midwest.


lmz261-362-364-366-563-565-567-868-091515-
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-
1256 am cdt fri oct 9 2026

sheboygan wi to pentwater mi north...

.today...northwest winds 10 to 15 kt veering to east. waves 1 to
2 ft. 
.tonight...east winds 10 to 20 kt becoming southeast 15 to 25 kt.
waves 1 to 3 ft building to 4 to 7 ft occasionally to 9 ft. 
.saturday...southeast winds to 30 kt becoming south. waves 6 to
9 ft occasionally to 12 ft building to 7 to 10 ft occasionally to
13 ft. 
.saturday night...south winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft. 
.sunday...south winds 15 to 25 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 15 to 25 kt. chance of showers. waves
2 to 4 ft. 
.tuesday...north winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft.  

$$

fzus63 kmkx 090556
glflm 
expires:202610091515;;776096

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1256 am cdt fri oct 9 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 30.1 inches will move across the region 
overnight. winds will become southeast on friday and south friday
night, as the high moves to the east and low pressure around 29.2
inches develops 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. gale warnings aren't expected at this time.

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 to north winds to develop monday night into 
tuesday after the passage of a cold front, as high pressure around
30.1 inches builds into the upper midwest.


lmz080-669-671-673-675-777-779-870-872-874-876-878-091515-
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-
1256 am cdt fri oct 9 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 5 to 10 kt becoming south late this
morning, then becoming southeast early this afternoon becoming
10 to 20 kt late. waves 1 to 3 ft. 
.tonight...southeast winds 10 to 20 kt becoming south 15 to
25 kt. slight chance of showers in the evening. waves 3 to 5 ft
building to 4 to 7 ft occasionally to 9 ft. 
.saturday...south winds to 30 kt. waves 7 to 10 ft occasionally
to 13 ft. 
.saturday night...south winds to 30 kt diminishing to 15 to
25 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.sunday...southeast winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday night...south winds 10 to 15 kt. waves 2 to 4 ft
subsiding to 1 to 2 ft. 
.monday...south winds 10 to 20 kt becoming southwest 15 to 25 kt.
waves 2 to 4 ft. 
.tuesday...north winds 15 to 25 kt. waves 6 to 9 ft occasionally
to 12 ft.  

$$