fzus63 kmkx 020156
glflm 
expires:202504020915;;584629

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
856 pm cdt tue apr 1 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...

southeast winds are quickly strengthening across the open waters 
tonight as 29.2 inch low pressure develops in the central great 
plains. gusts will continue to increase through the predawn hours 
as the low progresses into the missouri river valley. widespread 
southeasterly gales will overspread lake michigan from south to 
north by sunrise wednesday. a gale warning remains in effect 
between 1 am & 1 pm cdt wednesday across the southern two-thirds 
of the open waters, and between 5 am & 4 pm cdt wednesday across 
the northern third. the surface low will progress toward lake 
superior wednesday evening, moving into ontario by early thursday 
morning. showers and thunderstorms are expected ahead of the 
low from late tonight through wednesday evening. some storms 
could be strong to severe wednesday afternoon, particularly across
the southern half of lake michigan. winds will turn southwesterly
& gradually decrease in the wake of the departing surface low 
wednesday night.

30.1 inch high pressure will build into the northern great plains
thursday afternoon, allowing winds to turn more westerly across 
the open waters. winds will become light & variable thursday night
as the high crosses lake michigan. winds will shift out of the 
northeast on friday as low pressure forms in the southern great 
plains. winds will increase during the day on saturday as the low 
moves into the ohio river valley. gales aren't forecast at this 
time, though trends will be monitored. periods of rain will 
accompany the approaching low friday afternoon through saturday, 
with a few thunderstorms possible over far southern lake michigan.


lmz366-565-567-868-020915-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
856 pm cdt tue apr 1 2025

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...gale warning in effect from 1 am cdt wednesday through
wednesday afternoon...

.rest of tonight...east winds 10 to 15 kt becoming southeast
gales to 35 kt. chance of snow through early evening, then snow
and slight chance of rain overnight. waves 1 to 2 ft building to
8 to 11 ft occasionally to 14 ft. 
.wednesday...southeast gales to 40 kt diminishing to 30 kt. rain
and slight chance of snow in the morning, then rain and slight
chance of thunderstorms in the afternoon. waves 10 to 14 ft
occasionally to 18 ft subsiding to 8 to 11 ft occasionally to
14 ft. 
.wednesday night...south winds to 30 kt becoming southwest 15 to
25 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 6 to
9 ft occasionally to 12 ft. 
.thursday...southwest winds 15 to 25 kt becoming west. waves 5 to
8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.thursday night...west winds 10 to 15 kt becoming north 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.friday night...northeast winds 10 to 15 kt. waves 1 to 2 ft. 
.saturday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday...northwest winds 10 to 20 kt becoming north. waves 3 to
5 ft.  

$$

fzus63 kmkx 020156
glflm 
expires:202504020915;;584630

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
856 pm cdt tue apr 1 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...

southeast winds are quickly strengthening across the open waters 
tonight as 29.2 inch low pressure develops in the central great 
plains. gusts will continue to increase through the predawn hours 
as the low progresses into the missouri river valley. widespread 
southeasterly gales will overspread lake michigan from south to 
north by sunrise wednesday. a gale warning remains in effect 
between 1 am & 1 pm cdt wednesday across the southern two-thirds 
of the open waters, and between 5 am & 4 pm cdt wednesday across 
the northern third. the surface low will progress toward lake 
superior wednesday evening, moving into ontario by early thursday 
morning. showers and thunderstorms are expected ahead of the 
low from late tonight through wednesday evening. some storms 
could be strong to severe wednesday afternoon, particularly across
the southern half of lake michigan. winds will turn southwesterly
& gradually decrease in the wake of the departing surface low 
wednesday night.

30.1 inch high pressure will build into the northern great plains
thursday afternoon, allowing winds to turn more westerly across 
the open waters. winds will become light & variable thursday night
as the high crosses lake michigan. winds will shift out of the 
northeast on friday as low pressure forms in the southern great 
plains. winds will increase during the day on saturday as the low 
moves into the ohio river valley. gales aren't forecast at this 
time, though trends will be monitored. periods of rain will 
accompany the approaching low friday afternoon through saturday, 
with a few thunderstorms possible over far southern lake michigan.


lmz080-669-671-673-675-777-779-870-872-874-876-878-020915-
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-
856 pm cdt tue apr 1 2025

sheboygan wi to pentwater mi south...

...gale warning in effect from 1 am cdt wednesday through
wednesday afternoon...

.rest of tonight...east winds 15 to 25 kt increasing to gales to
40 kt. chance of rain through early evening, then rain and slight
chance of snow overnight. waves 3 to 5 ft building to 10 to 14 ft
occasionally to 18 ft. 
.wednesday...southeast gales to 40 kt diminishing to gales to
35 kt early in the afternoon, then becoming south to 30 kt late.
rain with a chance of thunderstorms. waves 12 to 16 ft
occasionally to 21 ft subsiding to 8 to 11 ft occasionally to
14 ft. 
.wednesday night...south winds to 30 kt becoming southwest 15 to
25 kt. chance of rain and thunderstorms in the evening. waves
7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.thursday...west winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft. 
.thursday night...northwest winds 5 to 10 kt becoming north 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.friday night...northeast winds 10 to 20 kt. chance of rain
showers. waves 2 to 4 ft. 
.saturday...north winds 10 to 20 kt. chance of rain showers.
waves 4 to 6 ft occasionally to 8 ft. 
.sunday...north winds 10 to 20 kt. waves 4 to 6 ft occasionally
to 8 ft.  

$$