fzus63 kmkx 211507
glflm 
expires:202602212230;;017701

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 am cst sat feb 21 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...

low pressure over lake huron will continue to weaken through
today, with light northwesterly winds continuing as high pressure
builds down from the canadian prairies. going into sunday morning,
low pressure will deepen off the mid-atlantic coast as strong 
canadian high pressure around 31.2 inches builds, leading to 
increasing northwest winds through sunday and into sunday night. 
as high pressure builds eastward into ontario sunday night, expect
gales to develop across the southern two-thirds of the open
waters. a gale watch is in effect. winds will gradually diminish
into monday as low pressure lifts into the canadian maritimes
and high pressure around 30.4 inches builds over the western great
lakes region. a modest south breeze develops tuesday as weak high
pressure drifts east of the region and low pressure develops west
of the lake.


lmz366-565-567-868-212230-
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-
907 am cst sat feb 21 2026

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

...gale watch in effect from sunday evening through monday
morning...

.rest of today...northwest winds 10 to 20 kt. chance of snow this
afternoon. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.tonight...northwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of snow. waves 2 to 4 ft building to 4 to 7 ft
occasionally to 9 ft. 
.sunday...northwest winds to 30 kt becoming north gales to 35 kt.
freezing spray. chance of snow in the morning, then chance of
flurries in the afternoon. waves 6 to 9 ft occasionally to 12 ft
building to 8 to 12 ft occasionally to 16 ft. 
.sunday night...north gales to 35 kt. freezing spray. waves 10 to
14 ft occasionally to 18 ft. 
.monday...north gales to 35 kt diminishing to 30 kt. freezing
spray. waves 10 to 14 ft occasionally to 18 ft. 
.monday night...north winds 10 to 20 kt backing to west 10 to
15 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 2 to
4 ft. 
.tuesday...south winds 15 to 25 kt. chance of snow. waves 3 to
5 ft building to 5 to 8 ft occasionally to 10 ft. 
.wednesday...west winds 15 to 25 kt. chance of snow and rain.
waves 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 211507
glflm 
expires:202602212230;;017702

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
907 am cst sat feb 21 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...

low pressure over lake huron will continue to weaken through
today, with light northwesterly winds continuing as high pressure
builds down from the canadian prairies. going into sunday morning,
low pressure will deepen off the mid-atlantic coast as strong 
canadian high pressure around 31.2 inches builds, leading to 
increasing northwest winds through sunday and into sunday night. 
as high pressure builds eastward into ontario sunday night, expect
gales to develop across the southern two-thirds of the open
waters. a gale watch is in effect. winds will gradually diminish
into monday as low pressure lifts into the canadian maritimes
and high pressure around 30.4 inches builds over the western great
lakes region. a modest south breeze develops tuesday as weak high
pressure drifts east of the region and low pressure develops west
of the lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-212230-
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-
907 am cst sat feb 21 2026

sheboygan wi to pentwater mi south...

...gale watch in effect from sunday evening through monday
morning...

.rest of today...northwest winds 10 to 20 kt. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.tonight...northwest winds 10 to 20 kt increasing to 15 to 25 kt.
slight chance of snow in the evening, then chance of snow
overnight. waves 2 to 4 ft building to 5 to 8 ft occasionally to
10 ft. 
.sunday...northwest winds to 30 kt increasing to gales to 35 kt.
freezing spray in the morning. chance of snow. waves 6 to 9 ft
occasionally to 12 ft building to 10 to 14 ft occasionally to
18 ft. 
.sunday night...north winds to 30 kt increasing to gales to
35 kt. freezing spray. chance of snow. waves 12 to 16 ft
occasionally to 21 ft. 
.monday...north gales to 35 kt diminishing to 30 kt. chance of
snow in the morning. freezing spray. waves 12 to 16 ft
occasionally to 21 ft. 
.monday night...north winds 10 to 20 kt backing to west 10 to
15 kt. waves 8 to 11 ft occasionally to 14 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.tuesday...southwest winds 15 to 25 kt becoming south. chance of
snow. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.wednesday...west winds 15 to 25 kt. chance of rain and snow.
waves 6 to 9 ft occasionally to 12 ft.  

$$