fzus63 kmkx 140312
glflm 
expires:202601141015;;310876

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
912 pm cst tue jan 13 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...

a strong, arctic cold front will shift southward across lake 
michigan overnight. west winds will become northwest behind the
front and will rapidly increase to gale force, with gales
lingering into wednesday evening. gale warnings are in effect for
all of lake michigan. moderate to occasionally heavy freezing 
spray is also expected during this time. 

by late wednesday night, high pressure around 30.3 inches will 
build into the plains, and eventually cross the upper great lakes 
on thursday. low pressure around 29.4 inches will cross lake 
superior on friday, and stall over the lower great lakes saturday
while weakening to around 29.5 inches. colder air on the back 
side of the low will overspread lake michigan on gusty west winds
on saturday.


lmz261-362-364-366-563-565-141015-
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-
912 pm cst tue jan 13 2026

two rivers wi to manistee mi north...

...gale warning in effect through wednesday evening...

.rest of tonight...west winds to 30 kt becoming northwest gales 
to 40 kt. isolated rain and snow showers late this evening, then 
scattered snow showers overnight. freezing spray overnight. waves 
4 to 7 ft occasionally to 9 ft building to 8 to 12 ft occasionally
to 16 ft. 
.wednesday...north gales to 40 kt. freezing spray. scattered snow
showers in the morning, then isolated snow showers in the
afternoon. waves 12 to 16 ft occasionally to 21 ft. 
.wednesday night...north gales to 40 kt diminishing to 15 to
25 kt. freezing spray. waves 10 to 14 ft occasionally to 18 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.thursday...northwest winds 10 to 20 kt backing to southwest.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.thursday night...southwest winds to 30 kt. freezing spray in the
evening. chance of snow. waves 7 to 10 ft occasionally to 13 ft. 
.friday...west winds 10 to 20 kt. snow likely in the morning,
then chance of snow in the afternoon. waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.friday night...northwest winds 10 to 20 kt increasing to 15 to
25 kt. chance of snow. waves 4 to 6 ft occasionally to 8 ft. 
.saturday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
chance of snow. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...northwest winds 15 to 25 kt becoming west. freezing
spray. chance of snow. waves 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 140312
glflm 
expires:202601141015;;310877

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
912 pm cst tue jan 13 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...

a strong, arctic cold front will shift southward across lake 
michigan overnight. west winds will become northwest behind the
front and will rapidly increase to gale force, with gales
lingering into wednesday evening. gale warnings are in effect for
all of lake michigan. moderate to occasionally heavy freezing 
spray is also expected during this time. 

by late wednesday night, high pressure around 30.3 inches will 
build into the plains, and eventually cross the upper great lakes 
on thursday. low pressure around 29.4 inches will cross lake 
superior on friday, and stall over the lower great lakes saturday
while weakening to around 29.5 inches. colder air on the back 
side of the low will overspread lake michigan on gusty west winds
on saturday.


lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-141015-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from two rivers to sheboygan wi 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 pentwater to manistee mi 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-
912 pm cst tue jan 13 2026

two rivers wi to manistee mi south...

...gale warning in effect from 3 am cst wednesday through
wednesday evening...

.rest of tonight...west winds to 30 kt becoming northwest gales
to 35 kt. isolated rain showers late this evening, then scattered
rain and snow showers overnight. waves 4 to 6 ft occasionally to
8 ft building to 8 to 12 ft occasionally to 16 ft. 
.wednesday...north gales to 40 kt. freezing spray. snow showers
in the morning, then scattered snow showers in the afternoon.
waves 14 to 18 ft occasionally to 23 ft. 
.wednesday night...north gales to 40 kt diminishing to 30 kt.
freezing spray. scattered snow showers in the evening, then
chance of snow showers overnight. waves 12 to 16 ft occasionally
to 21 ft subsiding to 8 to 12 ft occasionally to 16 ft. 
.thursday...northwest winds 15 to 25 kt becoming west 10 to
20 kt. freezing spray in the morning. waves 8 to 11 ft
occasionally to 14 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.thursday night...southwest winds to 30 kt. chance of snow in the
evening, then snow overnight. waves 6 to 9 ft occasionally to
12 ft building to 8 to 11 ft occasionally to 14 ft. 
.friday...west winds to 30 kt. snow. waves 8 to 11 ft
occasionally to 14 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.friday night...west winds to 30 kt becoming northwest. snow
likely. waves 6 to 9 ft occasionally to 12 ft. 
.saturday...northwest winds 15 to 25 kt. freezing spray. chance
of snow. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...west winds to 30 kt. freezing spray. chance of snow.
waves 6 to 9 ft occasionally to 12 ft.  

$$