fzus63 kmkx 032005
glflm 
expires:202607040315;;355653

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 pm 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...

high pressure around 30.1 inches will sit over the appalachian 
mountains and a trough of low pressure will remain over the great 
plains through tonight. a weak low pressure area will then 
organize and slowly move across wisconsin and lake michigan from 
saturday afternoon into sunday. scattered showers and 
thunderstorms are expected at times through the weekend. patchy 
marine fog will be possible as warm and humid air flows over the 
relatively cooler lake.


lmz673-675-040315-
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-
305 pm cdt fri jul 3 2026

north point light wi to grand haven mi south to winthrop harbor
il to south haven mi...

...severe thunderstorm watch 445 in effect until 7 pm cdt this
evening...

.tonight...south winds 10 to 15 kt veering to southwest 5 to
10 kt. slight chance of showers and thunderstorms. patchy fog
overnight.  damaging winds and large hail this evening. waves
1 to 2 ft. 
.saturday...west winds 5 to 10 kt veering to north. patchy fog in
the morning. slight chance of showers and thunderstorms in the
morning, then chance of showers and thunderstorms in the
afternoon. waves 1 ft or less. 
.saturday night...northeast winds 5 to 10 kt backing to southwest
10 to 15 kt. chance of showers and thunderstorms in the evening,
then chance of showers overnight. waves 1 to 2 ft.
.sunday...west winds 10 to 15 kt becoming northwest. chance of
showers. waves 1 to 3 ft. 
.sunday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft. 
.monday...north winds 10 to 15 kt. waves 1 to 3 ft. 
.monday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.tuesday...north winds 5 to 10 kt. waves 1 to 2 ft. 
.wednesday...southwest winds 5 to 10 kt becoming southeast. waves
1 ft or less.  

$$

fzus63 kmkx 032005
glflm 
expires:202607040315;;355651

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 pm 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...

high pressure around 30.1 inches will sit over the appalachian 
mountains and a trough of low pressure will remain over the great 
plains through tonight. a weak low pressure area will then 
organize and slowly move across wisconsin and lake michigan from 
saturday afternoon into sunday. scattered showers and 
thunderstorms are expected at times through the weekend. patchy 
marine fog will be possible as warm and humid air flows over the 
relatively cooler lake.


lmz261-362-364-366-563-565-567-868-040315-
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-
305 pm cdt fri jul 3 2026

sheboygan wi to pentwater mi north...

.tonight...southwest winds 10 to 20 kt diminishing to 10 to 15 kt
late this evening, then veering to north 5 to 10 kt overnight.
patchy fog. slight chance of showers and thunderstorms. waves
1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. patchy fog in the morning. slight chance of showers in the
morning. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 20 kt becoming east.
chance of showers. waves 1 to 3 ft. 
.sunday...east winds 10 to 20 kt becoming northeast. chance of
showers. waves 2 to 4 ft. 
.sunday night...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. chance of showers in the evening. waves 2 to 4 ft. 
.monday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.monday night...northeast winds 10 to 20 kt becoming north 5 to
10 kt. waves 1 to 2 ft. 
.tuesday...northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 ft or less. 
.wednesday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 ft or less.  

$$

fzus63 kmkx 032005
glflm 
expires:202607040315;;355652

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 pm 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...

high pressure around 30.1 inches will sit over the appalachian 
mountains and a trough of low pressure will remain over the great 
plains through tonight. a weak low pressure area will then 
organize and slowly move across wisconsin and lake michigan from 
saturday afternoon into sunday. scattered showers and 
thunderstorms are expected at times through the weekend. patchy 
marine fog will be possible as warm and humid air flows over the 
relatively cooler lake.


lmz080-669-671-777-779-870-872-874-876-878-040315-
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 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-
305 pm cdt fri jul 3 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 10 to 15 kt becoming southwest after
midnight, then becoming west late. slight chance of showers and
thunderstorms. patchy fog overnight. waves 1 to 2 ft. 
.saturday...northwest winds 5 to 10 kt veering to northeast late
in the morning, then becoming north 10 to 20 kt in the afternoon.
patchy fog in the morning. slight chance of showers and
thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 15 kt veering to south.
chance of showers and thunderstorms in the evening, then chance
of showers overnight. waves 1 to 2 ft. 
.sunday...northwest winds 10 to 20 kt. chance of showers. waves
1 to 3 ft. 
.sunday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft. 
.monday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.monday night...north winds 10 to 20 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.tuesday...north winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.wednesday...southwest winds 10 to 15 kt becoming south. waves
1 ft or less.  

$$