fzus63 kmkx 131505
glflm 
expires:202601132230;;281458

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 am 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...

gusty west to southwest winds are expected across lake michigan 
today as low pressure of 29.2 inches deepens to 29.1 inches as it
crosses ontario. a strong, arctic cold front will drop down lake 
michigan overnight. northwest winds will rapidly increase to gale
force behind the front, with gales continuing into wednesday 
evening. gale warnings are in effect for all of lake michigan. 
moderate to occasionally heavy freezing spray is expected during 
this time as well. 

by late wednesday night, high pressure of 30.3 inches will build
south across the upper mississippi valley, and will eventually
move across the lake on thursday, bringing lighter winds. low
pressure of 29.4 inches will cross lake superior on friday and
stall over the lower great lakes saturday while weakening to 29.5
inches. colder air on the back side of the low will overspread
lake michigan on gusty westerly winds on saturday.


lmz261-362-364-366-563-565-132230-
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-
905 am cst tue jan 13 2026

two rivers wi to manistee mi north...

...gale warning in effect from late tonight through wednesday
evening...

.rest of today...south winds to 30 kt becoming west. snow likely
with a chance of rain through mid morning, then chance of rain
and snow showers this afternoon. waves 5 to 8 ft occasionally to
10 ft. 
.tonight...west winds to 30 kt becoming northwest gales to 35 kt,
then increasing to gales to 40 kt late. slight chance of rain and
snow showers in the 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. chance of snow in the morning.
freezing spray. waves 10 to 14 ft occasionally to 18 ft. 
.wednesday night...north gales to 35 kt diminishing to 30 kt.
freezing spray. waves 10 to 14 ft occasionally to 18 ft subsiding
to 7 to 10 ft occasionally to 13 ft. 
.thursday...northwest winds 15 to 25 kt backing to southwest
10 to 20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to
2 to 4 ft. 
.thursday night...southwest winds to 30 kt. chance of snow. waves
6 to 9 ft occasionally to 12 ft. 
.friday...southwest winds 15 to 25 kt becoming west 10 to 20 kt.
snow likely. waves 6 to 9 ft occasionally to 12 ft subsiding to
4 to 7 ft occasionally to 9 ft. 
.saturday...northwest winds 15 to 25 kt. chance of snow. waves
4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 131505
glflm 
expires:202601132230;;281459

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
905 am 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...

gusty west to southwest winds are expected across lake michigan 
today as low pressure of 29.2 inches deepens to 29.1 inches as it
crosses ontario. a strong, arctic cold front will drop down lake 
michigan overnight. northwest winds will rapidly increase to gale
force behind the front, with gales continuing into wednesday 
evening. gale warnings are in effect for all of lake michigan. 
moderate to occasionally heavy freezing spray is expected during 
this time as well. 

by late wednesday night, high pressure of 30.3 inches will build
south across the upper mississippi valley, and will eventually
move across the lake on thursday, bringing lighter winds. low
pressure of 29.4 inches will cross lake superior on friday and
stall over the lower great lakes saturday while weakening to 29.5
inches. colder air on the back side of the low will overspread
lake michigan on gusty westerly winds on saturday.


lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-132230-
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-
905 am cst tue jan 13 2026

two rivers wi to manistee mi south...

...gale warning in effect from late tonight through wednesday
evening...

.rest of today...southwest winds to 30 kt becoming west. slight
chance of rain showers. waves 6 to 9 ft occasionally to 12 ft. 
.tonight...west winds to 30 kt becoming northwest gales to 35 kt.
scattered rain and snow showers overnight. waves 5 to 8 ft
occasionally to 10 ft building to 8 to 12 ft occasionally to
16 ft. 
.wednesday...north gales to 40 kt. freezing spray. snow likely.
waves 14 to 18 ft occasionally to 23 ft. 
.wednesday night...north gales to 40 kt diminishing to 30 kt
overnight. freezing spray. chance of snow. waves 12 to 16 ft
occasionally to 21 ft subsiding to 10 to 14 ft occasionally to
18 ft. 
.thursday...northwest winds 15 to 25 kt becoming west 10 to
20 kt. freezing spray in the morning. chance of snow in the
morning. waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to
7 ft occasionally to 9 ft. 
.thursday night...southwest winds to 30 kt. chance of snow. waves
6 to 9 ft occasionally to 12 ft building to 8 to 11 ft
occasionally to 14 ft. 
.friday...southwest winds to 30 kt becoming west. snow. waves
8 to 11 ft occasionally to 14 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.saturday...west winds to 30 kt. freezing spray. snow likely.
waves 6 to 9 ft occasionally to 12 ft.  

$$