fzus63 kmkx 191403
glflm 
expires:202606192130;;017379

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt fri jun 19 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...

westerly winds this morning will weaken this afternoon, as high
pressure around 30.3 inches moves by to the south of the lake.
winds turn south later this afternoon, as weak low pressure around
29.8 inches approaches the lake. it crosses northern portions of 
the lake later tonight with nearly calm winds, with southwest to
west winds developing further to the south. generally light winds
are expected saturday into saturday night.

low pressure around 29.5 inches should track northeastward from 
the central great plains on sunday, reaching illinois sunday 
afternoon, then the ohio river valley by monday morning. 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. 

lighter winds return tuesday and wednesday, as high pressure
around 30.1 inches builds into the region.


lmz261-362-364-366-563-565-567-868-192130-
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-
903 am cdt fri jun 19 2026

sheboygan wi to pentwater mi north...

.rest of today...northwest winds 10 to 20 kt becoming southwest.
waves 1 to 3 ft. 
.tonight...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers. waves 1 to 2 ft. 
.saturday...southwest winds 10 to 15 kt becoming west. waves 1 to
2 ft. 
.saturday night...northwest winds 10 to 15 kt veering to
northeast. waves 1 ft or less. 
.sunday...northeast winds 5 to 10 kt becoming east. waves 1 to
2 ft. 
.sunday night...northeast winds 10 to 20 kt increasing to 15 to
25 kt. chance of showers. waves 1 to 3 ft building to 4 to 6 ft
occasionally to 8 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. waves 4 to
7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.tuesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 191403
glflm 
expires:202606192130;;017380

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt fri jun 19 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...

westerly winds this morning will weaken this afternoon, as high
pressure around 30.3 inches moves by to the south of the lake.
winds turn south later this afternoon, as weak low pressure around
29.8 inches approaches the lake. it crosses northern portions of 
the lake later tonight with nearly calm winds, with southwest to
west winds developing further to the south. generally light winds
are expected saturday into saturday night.

low pressure around 29.5 inches should track northeastward from 
the central great plains on sunday, reaching illinois sunday 
afternoon, then the ohio river valley by monday morning. 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. 

lighter winds return tuesday and wednesday, as high pressure
around 30.1 inches builds into the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-192130-
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-
903 am cdt fri jun 19 2026

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 10 to 20 kt backing to south
10 to 15 kt. waves 2 to 4 ft. 
.tonight...south winds 10 to 15 kt becoming west 10 to 20 kt.
slight chance of showers and thunderstorms in the evening, then
chance of showers and slight chance of thunderstorms overnight.
waves 1 to 2 ft. 
.saturday...west winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 1 to 3 ft. 
.saturday night...southwest winds 5 to 10 kt veering to north.
waves 1 to 2 ft. 
.sunday...east winds 10 to 15 kt increasing to 30 kt in the
afternoon. chance of showers in the morning, then showers likely
in the afternoon. waves 1 ft or less building to 3 to 5 ft. 
.sunday night...northeast gales to 35 kt diminishing to 30 kt.
showers likely. waves 5 to 8 ft occasionally to 10 ft. 
.monday...northeast winds to 30 kt becoming north. waves 6 to
9 ft occasionally to 12 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.  

$$