fzus63 kmkx 200804
glflm 
expires:202606201515;;059605

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 am cdt sat jun 20 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 around 29.8 inches will crosses northern portions of
the lake through the predawn hours this morning with nearly calm 
winds, with southwest to west winds developing further to the 
south. generally light winds are expected today as high pressure 
around 30.0 inches moves through the day. then another low 
pressure around 29.5 inches should track eastward from the central
great plains on sunday, reaching central il early sunday evening,
then into oh by monday. east winds overspread lake michigan 
sunday, becoming gusty over southern portions of the lake and 
turning northeast later sunday into sunday night. winds turn north
and remain gusty into monday, particularly over southern portions
of the lake. at this time, winds look to remain below gale force 
over southern portions of the lake. lighter winds return tuesday 
and wednesday, as high pressure around 30.1 inches builds into the
region.


lmz261-362-364-366-563-565-567-868-201515-
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-
304 am cdt sat jun 20 2026

sheboygan wi to pentwater mi north...

.today...northwest winds 10 to 15 kt becoming southwest. waves
1 to 2 ft. 
.tonight...west winds 10 to 15 kt veering to north. waves 1 ft or
less. 
.sunday...north winds less than 10 kt becoming northeast 10 to
15 kt. waves nearly calm. 
.sunday night...north winds 10 to 20 kt becoming northeast. waves
1 to 2 ft building to 2 to 4 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. waves 3 to
5 ft. 
.monday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.tuesday...north winds 10 to 15 kt becoming northwest 10 to
20 kt. waves 1 to 2 ft. 
.wednesday...southeast winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 200804
glflm 
expires:202606201515;;059606

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
304 am cdt sat jun 20 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 around 29.8 inches will crosses northern portions of
the lake through the predawn hours this morning with nearly calm 
winds, with southwest to west winds developing further to the 
south. generally light winds are expected today as high pressure 
around 30.0 inches moves through the day. then another low 
pressure around 29.5 inches should track eastward from the central
great plains on sunday, reaching central il early sunday evening,
then into oh by monday. east winds overspread lake michigan 
sunday, becoming gusty over southern portions of the lake and 
turning northeast later sunday into sunday night. winds turn north
and remain gusty into monday, particularly over southern portions
of the lake. at this time, winds look to remain below gale force 
over southern portions of the lake. lighter winds return tuesday 
and wednesday, as high pressure around 30.1 inches builds into the
region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-201515-
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-
304 am cdt sat jun 20 2026

sheboygan wi to pentwater mi south...

.today...west winds 10 to 20 kt becoming south 10 to 15 kt. waves
2 to 4 ft subsiding to 1 to 3 ft. 
.tonight...southwest winds 5 to 10 kt veering to northwest. waves
1 to 2 ft. 
.sunday...northeast winds less than 10 kt becoming east late in
the morning, then becoming 10 to 15 kt early in the afternoon
becoming northeast 15 to 25 kt late. chance of showers in the
afternoon. waves 1 ft or less building to 1 to 3 ft. 
.sunday night...northeast winds to 30 kt diminishing to 15 to
25 kt. chance of showers. waves 4 to 7 ft occasionally to 9 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. waves 4 to
7 ft occasionally to 9 ft. 
.monday night...north winds to 30 kt diminishing to 10 to 15 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.tuesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. chance of showers. waves 1 to 2 ft.  

$$