fzus63 kmkx 021854
glflm 
expires:202510030315;;996647

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
154 pm cdt thu oct 2 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...

broad high pressure of 30.6 inches will linger over the east coast 
of the united states into this weekend, generally moving southward 
with time. winds will continue from a southerly to southwesterly 
direction, with light to moderate speeds through friday. winds 
are expected to pick up saturday afternoon as a stronger pressure 
gradient moves over the lake between the high pressure and 
approaching low pressure of 29.5 inches over the northern plains. 

gusty south to southwest winds will then continue through sunday, 
with some potential for gales sunday afternoon over the northern 
half of lake michigan. winds should then ease early monday morning
following the passage of a frontal boundary.


lmz261-362-364-366-563-565-567-868-030315-
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-
154 pm cdt thu oct 2 2025

sheboygan wi to pentwater mi north...

.tonight...south winds 10 to 20 kt becoming southwest. waves 2 to
4 ft. 
.friday...southwest winds 10 to 20 kt becoming south. chance of
showers in the afternoon. waves 1 to 3 ft. 
.friday night...south winds 10 to 15 kt. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.saturday night...south winds to 30 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...south winds to 30 kt increasing to gales to 35 kt.
waves 4 to 7 ft occasionally to 9 ft building to 7 to 10 ft
occasionally to 13 ft. 
.sunday night...south gales to 40 kt becoming southwest. waves
8 to 12 ft occasionally to 16 ft. 
.monday...northwest winds 15 to 25 kt diminishing to 10 to 20 kt.
chance of showers. waves 5 to 8 ft occasionally to 10 ft
subsiding to 3 to 5 ft. 
.tuesday...northwest winds 10 to 20 kt becoming west. chance of
showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 021854
glflm 
expires:202510030315;;996648

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
154 pm cdt thu oct 2 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...

broad high pressure of 30.6 inches will linger over the east coast 
of the united states into this weekend, generally moving southward 
with time. winds will continue from a southerly to southwesterly 
direction, with light to moderate speeds through friday. winds 
are expected to pick up saturday afternoon as a stronger pressure 
gradient moves over the lake between the high pressure and 
approaching low pressure of 29.5 inches over the northern plains. 

gusty south to southwest winds will then continue through sunday, 
with some potential for gales sunday afternoon over the northern 
half of lake michigan. winds should then ease early monday morning
following the passage of a frontal boundary.


lmz080-669-671-673-675-777-779-870-872-874-876-878-030315-
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-
154 pm cdt thu oct 2 2025

sheboygan wi to pentwater mi south...

.tonight...southeast winds 10 to 20 kt becoming south 10 to
15 kt. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft. 
.friday night...south winds 10 to 15 kt. waves 2 to 4 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.saturday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...south winds 15 to 25 kt increasing to gales to 35 kt in
the afternoon. waves 4 to 7 ft occasionally to 9 ft building to
7 to 10 ft occasionally to 13 ft. 
.sunday night...south winds to 30 kt becoming southwest. waves
7 to 10 ft occasionally to 13 ft. 
.monday...west winds 15 to 25 kt veering to north 10 to 20 kt.
chance of showers. waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.tuesday...north winds 10 to 15 kt becoming northwest 10 to
20 kt. chance of showers. waves 2 to 4 ft.  

$$