fzus63 kmkx 112042
glflm 
expires:202512120415;;409498

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
242 pm 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 weaken through the evening as 
high pressure around 30.1 inches moves east as a low pressure
around 29.7 inches tracks in from the plains tonight and up the
ohio river valley on friday. light winds overnight will gradually
pick up behind the low on friday and may be a brief window of 
west to northwest gust around gale force friday night through 
saturday night as a strong arctic cold front moves through the 
region. however, due to brisk conditions, looking like heavy 
freezing spray will develop during this period as the colder 
airmass moves into the great lakes region. then a strong high 
pressure around 30.8 inches will move southeast from the northern
plains and through the region sunday and to the south early next 
week. will see winds ease later sunday, but gusty winds may 
return early next week behind the exiting high as temps warm back
to near normal.


lmz261-362-364-366-563-565-567-868-120415-
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-
242 pm cst thu dec 11 2025

sheboygan wi to pentwater mi north...

.tonight...northwest winds 10 to 15 kt becoming west. slight
chance of snow overnight. waves 1 to 3 ft. 
.friday...west winds 10 to 15 kt becoming southwest 10 to 20 kt.
slight chance of snow in the morning, then chance of snow in the
afternoon. waves 1 to 3 ft building to 2 to 4 ft.
.friday night...west winds to 30 kt becoming northwest. chance of
snow in the evening. freezing spray in the evening, then heavy
freezing spray overnight. waves 4 to 7 ft occasionally to 9 ft
building to 8 to 12 ft occasionally to 16 ft. 
.saturday...northwest winds to 30 kt. heavy freezing spray.
chance of snow. waves 8 to 12 ft occasionally to 16 ft subsiding
to 7 to 10 ft occasionally to 13 ft. 
.saturday night...northwest winds to 30 kt. heavy freezing spray.
chance of snow. waves 8 to 12 ft occasionally to 16 ft. 
.sunday...northwest winds to 30 kt. freezing spray in the
morning. waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to
9 ft occasionally to 12 ft. 
.sunday night...west winds 10 to 20 kt becoming southwest to
30 kt. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.monday...southwest gales to 40 kt becoming west. freezing spray.
chance of snow. waves 8 to 12 ft occasionally to 16 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to gales to
40 kt. waves 3 to 5 ft building to 8 to 12 ft occasionally to
16 ft.  

$$

fzus63 kmkx 112042
glflm 
expires:202512120415;;409499

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
242 pm 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 weaken through the evening as 
high pressure around 30.1 inches moves east as a low pressure
around 29.7 inches tracks in from the plains tonight and up the
ohio river valley on friday. light winds overnight will gradually
pick up behind the low on friday and may be a brief window of 
west to northwest gust around gale force friday night through 
saturday night as a strong arctic cold front moves through the 
region. however, due to brisk conditions, looking like heavy 
freezing spray will develop during this period as the colder 
airmass moves into the great lakes region. then a strong high 
pressure around 30.8 inches will move southeast from the northern
plains and through the region sunday and to the south early next 
week. will see winds ease later sunday, but gusty winds may 
return early next week behind the exiting high as temps warm back
to near normal.


lmz080-669-671-673-675-777-779-870-872-874-876-878-120415-
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-
242 pm cst thu dec 11 2025

sheboygan wi to pentwater mi south...

.tonight...northwest winds 5 to 10 kt veering to east. slight
chance of snow overnight. waves 1 to 3 ft subsiding to 1 to 2 ft.
.friday...east 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. slight chance of snow in the
morning, then chance of snow in the afternoon. waves 1 to 3 ft
building to 2 to 4 ft. 
.friday night...west winds to 30 kt becoming northwest gales to
35 kt. chance of snow and light freezing rain in the evening.
freezing spray. waves 4 to 7 ft occasionally to 9 ft building to
10 to 14 ft occasionally to 18 ft. 
.saturday...northwest winds to 30 kt. heavy freezing spray.
chance of snow. waves 10 to 14 ft occasionally to 18 ft. 
.saturday night...northwest gales to 35 kt diminishing to 30 kt.
heavy freezing spray. chance of snow. waves 10 to 14 ft
occasionally to 18 ft. 
.sunday...northwest winds to 30 kt. chance of snow in the
morning. freezing spray. waves 10 to 14 ft occasionally to 18 ft.
.sunday night...west winds 10 to 20 kt becoming southwest to
30 kt. waves 5 to 8 ft occasionally to 10 ft. 
.monday...southwest gales to 40 kt. freezing spray. waves 10 to
14 ft occasionally to 18 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft building to 8 to 12 ft
occasionally to 16 ft.  

$$