fzus63 kmkx 050214
glflm 
expires:202606050915;;197120

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
914 pm cdt thu jun 4 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...

no major changes to the going synopsis this evening.

high pressure of 30.1 inches over the southeastern us will
continue to drift east toward the atlantic into tomorrow as a low
of 29.6 inches over the central plains connects to another low of
29.7 inches over southwest ontario as a cold front between the 
two tracks east into friday. the canadian low pressure will track
east across the northern great lakes through friday bringing 
prevailing southwesterly winds to lake michigan along with shower 
and thunderstorm chances tonight through friday ahead of the cold 
front. then expect the cold front to push through the region later
friday into saturday bringing additional shower and thunderstorm 
chances along with a more northwest to westerly wind shift behind 
it into saturday. then winds weaken and become more variable as 
high pressure around 30.0 inches builds across the region later 
saturday into sunday. looking ahead to the start of next week will
bring an additional low pressure system to develop over the 
plains and bring a return of southerly winds to the upper great 
lakes.


lmz261-362-364-366-563-565-567-868-050915-
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-
914 pm cdt thu jun 4 2026

sheboygan wi to pentwater mi north...

.rest of tonight...south winds 15 to 25 kt diminishing to 10 to
20 kt. chance of showers and thunderstorms overnight. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.friday...south winds 10 to 20 kt. showers likely with a chance
of thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon. waves 2 to 4 ft. 
.friday night...southwest winds 10 to 20 kt diminishing to 5 to
10 kt. chance of showers and thunderstorms. waves 2 to 4 ft
subsiding to 1 to 3 ft. 
.saturday...west winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 to 2 ft. 
.saturday night...north winds 10 to 15 kt becoming northeast.
waves 1 to 2 ft. 
.sunday...northeast winds 5 to 10 kt increasing to 10 to 20 kt in
the afternoon. waves 1 to 2 ft. 
.sunday night...east winds 10 to 20 kt becoming southeast. waves
1 to 2 ft building to 1 to 3 ft. 
.monday...southeast winds 10 to 20 kt becoming east. waves 2 to
4 ft. 
.tuesday...southeast winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 050214
glflm 
expires:202606050915;;197121

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
914 pm cdt thu jun 4 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...

no major changes to the going synopsis this evening.

high pressure of 30.1 inches over the southeastern us will
continue to drift east toward the atlantic into tomorrow as a low
of 29.6 inches over the central plains connects to another low of
29.7 inches over southwest ontario as a cold front between the 
two tracks east into friday. the canadian low pressure will track
east across the northern great lakes through friday bringing 
prevailing southwesterly winds to lake michigan along with shower 
and thunderstorm chances tonight through friday ahead of the cold 
front. then expect the cold front to push through the region later
friday into saturday bringing additional shower and thunderstorm 
chances along with a more northwest to westerly wind shift behind 
it into saturday. then winds weaken and become more variable as 
high pressure around 30.0 inches builds across the region later 
saturday into sunday. looking ahead to the start of next week will
bring an additional low pressure system to develop over the 
plains and bring a return of southerly winds to the upper great 
lakes.


lmz080-669-671-673-675-777-779-870-872-874-876-878-050915-
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-
914 pm cdt thu jun 4 2026

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 10 to 20 kt. chance of showers and
thunderstorms overnight. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.friday...south winds 10 to 20 kt increasing to 15 to 25 kt.
showers likely with a chance of thunderstorms. waves 2 to 4 ft. 
.friday night...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers and thunderstorms. waves 2 to 4 ft
subsiding to 1 to 3 ft. 
.saturday...southwest winds 10 to 15 kt becoming south. chance of
showers. waves 1 to 3 ft. 
.saturday night...east winds 5 to 10 kt becoming northeast. waves
1 ft or less. 
.sunday...northeast winds 5 to 10 kt becoming north 10 to 15 kt.
waves 1 to 2 ft. 
.sunday night...northeast winds 10 to 15 kt becoming east 10 to
20 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.monday...southeast winds 10 to 20 kt. waves 3 to 5 ft. 
.tuesday...southeast winds 10 to 20 kt. waves 2 to 4 ft.  

$$