fzus63 kmkx 120906
glflm 
expires:202602121615;;500248

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
306 am cst thu feb 12 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 of 30.3 inches remains over the lake through this 
morning, with high pressure progressing eastward this afternoon 
and allowing southwesterly winds to develop tonight into friday.
west-southwest winds will continue through saturday as 29.6 inch 
low pressure forms over northern manitoba. low pressure will 
move east into the hudson bay saturday night through sunday 
morning, pulling a weak cold front across lake michigan in the 
process. winds will briefly shift out of the northwest sunday 
afternoon behind the front.

winds will trend light and variable sunday night, as 30.1 inch 
high pressure builds across the lake. winds will shift south, then 
southwesterly monday as the high shifts east, with readings 
steadily increasing through tuesday as 29.5 inch low pressure 
forms over the northern great plains. low pressure will approach 
and cross the lake tuesday night through wednesday, resulting in 
a westerly wind shift by wednesday afternoon. a few gales are 
possible tuesday night through wednesday morning, though how 
widespread they would be remains uncertain.



lmz261-362-364-366-563-565-567-868-121615-
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-
306 am cst thu feb 12 2026

sheboygan wi to pentwater mi north...

.today...north winds 10 to 15 kt backing to west. waves 1 to 3 ft
subsiding to 1 to 2 ft. 
.tonight...southwest winds 5 to 10 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.friday...southwest winds 10 to 20 kt becoming west. waves 3 to
5 ft. 
.friday night...northwest winds 10 to 15 kt becoming north. waves
2 to 4 ft subsiding to 1 to 3 ft. 
.saturday...south winds 5 to 10 kt. waves 1 to 2 ft. 
.saturday night...south winds 10 to 15 kt. waves 1 to 3 ft. 
.sunday...southwest winds 10 to 15 kt. waves 1 to 3 ft. 
.monday...south winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 120906
glflm 
expires:202602121615;;500249

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
306 am cst thu feb 12 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 of 30.3 inches remains over the lake through this 
morning, with high pressure progressing eastward this afternoon 
and allowing southwesterly winds to develop tonight into friday.
west-southwest winds will continue through saturday as 29.6 inch 
low pressure forms over northern manitoba. low pressure will 
move east into the hudson bay saturday night through sunday 
morning, pulling a weak cold front across lake michigan in the 
process. winds will briefly shift out of the northwest sunday 
afternoon behind the front.

winds will trend light and variable sunday night, as 30.1 inch 
high pressure builds across the lake. winds will shift south, then 
southwesterly monday as the high shifts east, with readings 
steadily increasing through tuesday as 29.5 inch low pressure 
forms over the northern great plains. low pressure will approach 
and cross the lake tuesday night through wednesday, resulting in 
a westerly wind shift by wednesday afternoon. a few gales are 
possible tuesday night through wednesday morning, though how 
widespread they would be remains uncertain.



lmz080-669-671-673-675-777-779-870-872-874-876-878-121615-
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-
306 am cst thu feb 12 2026

sheboygan wi to pentwater mi south...

.today...north winds 5 to 10 kt becoming east. waves 1 to 3 ft
subsiding to 1 to 2 ft. 
.tonight...southeast winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.friday...southwest winds 10 to 15 kt. waves 2 to 4 ft. 
.friday night...southwest winds 10 to 15 kt becoming west 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.saturday...southwest winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.saturday night...south winds 10 to 15 kt. waves 1 to 3 ft. 
.sunday...southwest winds 10 to 15 kt becoming west. waves 1 to
3 ft. 
.monday...south winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 1 to 3 ft.  

$$