fzus63 kmkx 130824
glflm 
expires:202601131615;;266178

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
224 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 the lake today,
as low pressure deepens across southwestern ontario. by tonight,
that low will deepen to 29.1 inches and will push east into
western quebec. 

as that low deepens and moves east it will push a strong, arctic
cold front down lake michigan this evening into tonight. 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. winds
will briefly turn westerly to southwesterly thursday evening and
night, before another strong cold front sweeps across the region
early friday. 


lmz261-362-364-366-563-565-131615-
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-
224 am cst tue jan 13 2026

two rivers wi to manistee mi north...

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

.today...south winds to 30 kt becoming west. chance of rain and
snow this morning, then chance of snow and slight chance of rain
this afternoon. waves 5 to 8 ft occasionally to 10 ft subsiding
to 4 to 7 ft occasionally to 9 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 in the evening, then chance of snow 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 12 to 16 ft occasionally to 21 ft. 
.wednesday night...north gales to 35 kt diminishing to 30 kt.
freezing spray. 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 backing to southwest
10 to 20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to
2 to 4 ft. 
.thursday night...southwest winds to 30 kt. chance of snow. waves
3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.friday...southwest winds 15 to 25 kt becoming west 10 to 20 kt.
snow likely. waves 4 to 6 ft occasionally to 8 ft. 
.saturday...northwest winds 15 to 25 kt. chance of snow. waves
4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 130824
glflm 
expires:202601131615;;266179

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
224 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 the lake today,
as low pressure deepens across southwestern ontario. by tonight,
that low will deepen to 29.1 inches and will push east into
western quebec. 

as that low deepens and moves east it will push a strong, arctic
cold front down lake michigan this evening into tonight. 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. winds
will briefly turn westerly to southwesterly thursday evening and
night, before another strong cold front sweeps across the region
early friday. 


lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-131615-
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-
224 am cst tue jan 13 2026

two rivers wi to manistee mi south...

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

.today...west winds to 30 kt. slight chance of rain. waves 6 to 9
ft occasionally to 12 ft.
.tonight...west winds to 30 kt becoming northwest gales to 35 kt.
chance of rain and snow 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 15 to 20 ft occasionally to 26 ft. 
.wednesday night...north gales to 40 kt diminishing to 30 kt
overnight. freezing spray. chance of snow. waves 14 to 18 ft
occasionally to 23 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 8 to 12 ft occasionally to 16 ft subsiding to 5 to
8 ft occasionally to 10 ft. 
.thursday night...southwest winds to 30 kt. chance of snow. waves
4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally
to 10 ft. 
.friday...southwest winds to 30 kt becoming west. snow. waves
5 to 8 ft occasionally to 10 ft. 
.saturday...west winds to 30 kt. freezing spray. snow likely.
waves 5 to 8 ft occasionally to 10 ft.  

$$