fzus63 kmkx 030659
glflm 
expires:202607031515;;324009

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
159 am cdt fri jul 3 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...

large high pressure around 30.1 inches will remain parked over 
the ohio valley and appalachian mountains into friday night. 
meanwhile, a trough of low pressure will remain over the great 
plains through tonight. a weak low pressure area may then 
organize and slowly move across wisconsin and lake michigan from 
saturday afternoon into sunday, or pass farther south across 
illinois into the ohio valley. modest south to southwest winds 
will become a bit lighter today. light to modest winds are then 
forecast for the weekend, but with some uncertainty on wind 
direction given low confidence in the track of the low. a stormy 
period is expected for central and southern lake michigan from 
through the weekend. patchy marine fog will be possible at times 
as warm and humid air flows over the relatively cooler lake.


lmz261-362-364-366-563-565-567-868-031515-
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-
159 am cdt fri jul 3 2026

sheboygan wi to pentwater mi north...

.today...southwest winds 10 to 15 kt. patchy dense fog this
morning, then patchy fog this afternoon. slight chance of showers
and thunderstorms. waves 1 to 2 ft. 
.tonight...southwest winds 10 to 15 kt veering to north. chance
of showers and slight chance of thunderstorms in the evening,
then slight chance of showers overnight. waves 1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft. 
.saturday night...east winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 1 to 3 ft. 
.sunday...southeast winds 10 to 20 kt becoming northeast. chance
of showers. waves 1 to 3 ft. 
.sunday night...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 3 ft. 
.monday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday...northwest winds 10 to 15 kt backing to west 10 to
20 kt. waves 1 ft or less.  

$$

fzus63 kmkx 030659
glflm 
expires:202607031515;;324010

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
159 am cdt fri jul 3 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...

large high pressure around 30.1 inches will remain parked over 
the ohio valley and appalachian mountains into friday night. 
meanwhile, a trough of low pressure will remain over the great 
plains through tonight. a weak low pressure area may then 
organize and slowly move across wisconsin and lake michigan from 
saturday afternoon into sunday, or pass farther south across 
illinois into the ohio valley. modest south to southwest winds 
will become a bit lighter today. light to modest winds are then 
forecast for the weekend, but with some uncertainty on wind 
direction given low confidence in the track of the low. a stormy 
period is expected for central and southern lake michigan from 
through the weekend. patchy marine fog will be possible at times 
as warm and humid air flows over the relatively cooler lake.


lmz080-669-671-673-675-777-779-870-872-874-876-878-031515-
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-
159 am cdt fri jul 3 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 10 to 15 kt becoming south. patchy dense
fog. slight chance of showers and thunderstorms this morning,
then chance of showers and thunderstorms this afternoon. waves
1 to 2 ft. 
.tonight...southwest winds 10 to 15 kt veering to northwest 5 to
10 kt. chance of showers and thunderstorms. patchy fog overnight.
waves 1 to 2 ft. 
.saturday...north winds 5 to 10 kt becoming northeast 10 to
15 kt, then increasing to 10 to 20 kt late. chance of showers in
the morning, then chance of showers and thunderstorms in the
afternoon. waves 1 to 2 ft. 
.saturday night...east winds 10 to 20 kt becoming south 10 to
15 kt. chance of showers and thunderstorms in the evening, then
showers likely with a chance of thunderstorms overnight. waves
1 to 3 ft. 
.sunday...south winds 10 to 15 kt veering to northwest 10 to
20 kt. showers likely in the morning, then chance of showers in
the afternoon. waves 1 to 3 ft. 
.sunday night...north winds 10 to 20 kt becoming northeast 10 to
15 kt. chance of showers. waves 1 to 3 ft. 
.monday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.tuesday...north winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft.  

$$