fzus63 kmkx 111456
glflm 
expires:202512112215;;394266

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
856 am cst thu dec 11 2025

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...

northwest winds will continue to diminish today as high pressure 
around 30.1 inches moves in from the northwest. a period of west 
to northwest gales may return friday night through saturday night
as a strong arctic cold front moves through the region. heavy 
freezing spray will likely develop during this period as the 
colder airmass moves in. strong high pressure around 30.8 inches
will then move southeast through the region sunday and to the 
south early next week. gusty winds may return early next week 
behind the exiting high.


lmz261-362-364-366-563-565-567-868-112215-
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-
856 am cst thu dec 11 2025

sheboygan wi to pentwater mi north...

.rest of today...northwest winds 10 to 20 kt diminishing to 10 to
15 kt. slight chance of snow showers through mid morning. waves
4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.tonight...northwest winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.friday...northwest winds 10 to 15 kt becoming southwest 10 to
20 kt. chance of snow in the afternoon. waves 1 to 3 ft building
to 2 to 4 ft. 
.friday night...west winds to 30 kt increasing to gales to 35 kt.
snow likely in the evening, then chance of snow overnight.
freezing spray overnight. waves 5 to 8 ft occasionally to 10 ft
building to 8 to 11 ft occasionally to 14 ft. 
.saturday...west gales to 35 kt becoming northwest. freezing
spray. chance of snow. waves 8 to 11 ft occasionally to 14 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.saturday night...northwest gales to 35 kt increasing to gales to
40 kt. freezing spray. chance of snow. waves 8 to 11 ft
occasionally to 14 ft. 
.sunday...northwest gales to 35 kt diminishing to 15 to 25 kt.
freezing spray. waves 8 to 11 ft occasionally to 14 ft subsiding
to 6 to 9 ft occasionally to 12 ft. 
.monday...southwest gales to 40 kt becoming west gales to 35 kt.
freezing spray. chance of snow. waves 10 to 14 ft occasionally to
18 ft.  

$$

fzus63 kmkx 111456
glflm 
expires:202512112215;;394267

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
856 am cst thu dec 11 2025

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...

northwest winds will continue to diminish today as high pressure 
around 30.1 inches moves in from the northwest. a period of west 
to northwest gales may return friday night through saturday night
as a strong arctic cold front moves through the region. heavy 
freezing spray will likely develop during this period as the 
colder airmass moves in. strong high pressure around 30.8 inches
will then move southeast through the region sunday and to the 
south early next week. gusty winds may return early next week 
behind the exiting high.


lmz080-669-671-673-675-777-779-870-872-874-876-878-112215-
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-
856 am cst thu dec 11 2025

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 10 to 20 kt becoming west 5 to
10 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tonight...west winds 5 to 10 kt veering to east. slight chance
of snow. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.friday...northeast winds 5 to 10 kt veering to southwest 10 to
15 kt late in the morning, then increasing to 10 to 20 kt early
in the afternoon becoming west late. chance of snow in the
afternoon. waves 1 to 3 ft building to 3 to 5 ft.
.friday night...west winds to 30 kt increasing to gales to 35 kt.
freezing spray. chance of snow. waves 6 to 9 ft occasionally to
12 ft building to 8 to 12 ft occasionally to 16 ft. 
.saturday...northwest winds to 30 kt. heavy freezing spray in the
morning, then freezing spray in the afternoon. chance of snow.
waves 8 to 12 ft occasionally to 16 ft. 
.saturday night...northwest winds to 30 kt increasing to gales to
35 kt. heavy freezing spray. chance of snow. waves 10 to 14 ft
occasionally to 18 ft. 
.sunday...northwest gales to 35 kt diminishing to 30 kt. freezing
spray. waves 10 to 14 ft occasionally to 18 ft. 
.monday...southwest gales to 40 kt becoming west. freezing spray.
waves 12 to 16 ft occasionally to 21 ft.  

$$