fzus63 kmkx 220222
glflm 
expires:202512221030;;001727

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
822 pm cst sun dec 21 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...

high pressure of 30.4 inches around the ohio river valley will 
continue southeast tonight, as broad low pressure around 29.8 
inches moves into the northern great plains. this will result in 
increasing southwest winds across the waters. light snow should 
move into northern and central portions of the lake later tonight 
into monday.

winds will shift south and continue to increase monday, as the 
low slowly moves east. gusts to 30 knots are possible over 
southern lake michigan, with gales not expected at this time.

southwest winds will turn west later monday night into tuesday, 
as low pressure around 29.8 inches moves into ontario. winds will 
shift out of the northwest by tuesday afternoon, as high pressure 
around 30.4 inches moves into the northern great plains. winds 
will subside tuesday night, as the high crosses lake michigan. 
these winds will shift out of the southeast wednesday, as the high
moves east of the region.


lmz261-362-364-366-563-565-567-868-221030-
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-
822 pm cst sun dec 21 2025

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds 10 to 20 kt increasing to
30 kt. slight chance of snow late overnight. waves 2 to 4 ft 
building to 4 to 6 ft occasionally to 8 ft. 
.monday...southwest winds to 30 kt becoming south 15 to 25 kt.
snow and rain likely in the morning, then chance of rain and snow
in the afternoon. waves 4 to 6 ft occasionally to 8 ft. 
.monday night...south winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.tuesday...west winds 15 to 25 kt becoming northwest. waves 3 to
5 ft. 
.tuesday night...northwest winds 15 to 25 kt becoming northeast
10 to 15 kt overnight. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.wednesday...southeast winds 10 to 20 kt becoming south. waves
3 to 5 ft. 
.wednesday night...south winds 10 to 15 kt backing to east 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...east winds 10 to 15 kt becoming southeast 10 to
20 kt. waves 1 to 3 ft. 
.friday...northeast winds 10 to 20 kt. chance of snow and rain.
waves 2 to 4 ft.  

$$

fzus63 kmkx 220222
glflm 
expires:202512221030;;001728

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
822 pm cst sun dec 21 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...

high pressure of 30.4 inches around the ohio river valley will 
continue southeast tonight, as broad low pressure around 29.8 
inches moves into the northern great plains. this will result in 
increasing southwest winds across the waters. light snow should 
move into northern and central portions of the lake later tonight 
into monday.

winds will shift south and continue to increase monday, as the 
low slowly moves east. gusts to 30 knots are possible over 
southern lake michigan, with gales not expected at this time.

southwest winds will turn west later monday night into tuesday, 
as low pressure around 29.8 inches moves into ontario. winds will 
shift out of the northwest by tuesday afternoon, as high pressure 
around 30.4 inches moves into the northern great plains. winds 
will subside tuesday night, as the high crosses lake michigan. 
these winds will shift out of the southeast wednesday, as the high
moves east of the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-221030-
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-
822 pm cst sun dec 21 2025

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds 10 to 20 kt increasing to
15 to 25 kt. slight chance of snow late overnight. waves 1 to 3 
ft building to 4 to 6 ft occasionally to 8 ft. 
.monday...south winds 15 to 25 kt. chance of snow and slight
chance of rain, particularly further north. waves 4 to 6 ft 
occasionally to 8 ft.
.monday night...southwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.tuesday...west winds 10 to 20 kt becoming northwest. waves 3 to
5 ft. 
.tuesday night...northwest winds 10 to 15 kt veering to
northeast. waves 2 to 4 ft. 
.wednesday...southeast winds 10 to 20 kt. chance of rain in the
afternoon. waves 3 to 5 ft. 
.wednesday night...south winds 10 to 15 kt becoming southeast
5 to 10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...southeast winds 10 to 15 kt becoming south. waves
1 to 3 ft. 
.friday...north winds 10 to 20 kt. waves 3 to 5 ft.  

$$