fzus63 kmkx 252030
glflm 
expires:202512260415;;216758

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
230 pm cst thu dec 25 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...

modest northeast winds shifting easterly toward evening as high 
pressure of 30.5 inches moves east across northern ontario. the 
high will then move across quebec tonight into friday morning, 
while low pressure of 29.7 inches moves across northern illinois 
and the northern ohio valley. this will generate breezy southeast 
winds across the entire lake but remaining below gale force. much 
lighter and variable winds will then take hold later on friday 
into friday night. 

modest southeast winds will then return for saturday through 
sunday morning as low pressure organizes over the central great 
plains and moves to northeast illinois by noon sunday as a 29.7 
inch low pressure area. the low will then deepen to 29.2 inches by
monday morning over southern ontario, reaching southern quebec at
29.0 inches later in the day. thus northwest gales are looking 
likely sunday night through monday evening over lake michigan. 
much colder air will also pose a risk for freezing spray during 
the period of gales.


lmz261-362-364-366-563-565-567-868-260415-
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-
230 pm cst thu dec 25 2025

sheboygan wi to pentwater mi north...

.tonight...southeast winds 15 to 25 kt increasing to 30 kt.
slight chance of snow this evening, then rain likely with
possible freezing rain and snow overnight. waves 4 to 6 ft
occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft.
.friday...southeast winds to 30 kt diminishing to 15 to 25 kt
late in the morning, then diminishing to 10 to 20 kt early in the
afternoon becoming northeast 10 to 15 kt late. patchy fog. rain,
snow, light sleet and light freezing rain in the morning, then
slight chance of light freezing rain in the afternoon. waves 5 to
8 ft occasionally to 10 ft subsiding to 2 to 4 ft. 
.friday night...northeast winds 5 to 10 kt veering to east. waves
1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 20 kt. waves 1 to 3 ft building
to 3 to 5 ft. 
.saturday night...southeast winds 10 to 20 kt. chance of rain and
light freezing rain overnight. waves 4 to 6 ft occasionally to
8 ft. 
.sunday...southeast winds 10 to 15 kt backing to north 15 to
25 kt in the afternoon. chance of rain in the morning, then rain
likely in the afternoon. waves 3 to 5 ft. 
.sunday night...north gales to 35 kt becoming northwest gales to
45 kt. freezing spray. snow and rain likely. waves 6 to 9 ft
occasionally to 12 ft building to 10 to 14 ft occasionally to
18 ft. 
.monday...northwest gales to 45 kt. freezing spray. chance of
snow. waves 12 to 16 ft occasionally to 21 ft. 
.tuesday...west winds to 30 kt. chance of snow. waves 6 to 9 ft
occasionally to 12 ft.  

$$

fzus63 kmkx 252030
glflm 
expires:202512260415;;216759

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
230 pm cst thu dec 25 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...

modest northeast winds shifting easterly toward evening as high 
pressure of 30.5 inches moves east across northern ontario. the 
high will then move across quebec tonight into friday morning, 
while low pressure of 29.7 inches moves across northern illinois 
and the northern ohio valley. this will generate breezy southeast 
winds across the entire lake but remaining below gale force. much 
lighter and variable winds will then take hold later on friday 
into friday night. 

modest southeast winds will then return for saturday through 
sunday morning as low pressure organizes over the central great 
plains and moves to northeast illinois by noon sunday as a 29.7 
inch low pressure area. the low will then deepen to 29.2 inches by
monday morning over southern ontario, reaching southern quebec at
29.0 inches later in the day. thus northwest gales are looking 
likely sunday night through monday evening over lake michigan. 
much colder air will also pose a risk for freezing spray during 
the period of gales.


lmz080-669-671-673-675-777-779-870-872-874-876-878-260415-
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-
230 pm cst thu dec 25 2025

sheboygan wi to pentwater mi south...

.tonight...east winds to 30 kt becoming southeast. rain
overnight. waves 6 to 9 ft occasionally to 12 ft. 
.friday...southeast winds to 30 kt becoming south 10 to 20 kt
late in the morning, then veering to northwest early in the
afternoon becoming northwest 10 to 20 kt late. chance of rain in
the morning. patchy fog. waves 5 to 8 ft occasionally to 10 ft
subsiding to 2 to 4 ft. 
.friday night...northwest winds 10 to 15 kt veering to northeast
5 to 10 kt. waves 1 to 3 ft. 
.saturday...southeast winds 10 to 20 kt. waves 1 to 3 ft building
to 3 to 5 ft. 
.saturday night...southeast winds 10 to 20 kt. chance of rain
overnight. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...south winds 10 to 15 kt veering to northwest 15 to
25 kt in the afternoon. chance of rain in the morning, then rain
likely in the afternoon. waves 4 to 6 ft occasionally to 8 ft. 
.sunday night...northwest gales to 35 kt increasing to gales to
45 kt. freezing spray. rain likely with a chance of snow. waves
8 to 11 ft occasionally to 14 ft building to 12 to 16 ft
occasionally to 21 ft. 
.monday...northwest gales to 45 kt increasing to storm force
winds to 50 kt. freezing spray. chance of snow. waves 15 to 20 ft
occasionally to 26 ft. 
.tuesday...west winds to 30 kt. waves 8 to 11 ft occasionally to
14 ft subsiding to 6 to 9 ft occasionally to 12 ft.  

$$