fzus63 kmkx 012002
glflm 
expires:202607020315;;240475

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
302 pm cdt wed jul 1 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 remain parked over the 
southern appalachian mountains into the weekend. meanwhile, a low 
pressure system around 29.5 inches in west central manitoba slowly 
moves east toward james bay by friday. breezy south to southwest 
winds will persist through thursday. southwest winds will weaken 
becoming light thursday night through friday. heading into the 
weekend, high pressure in the appalachian range will gradually 
shift east. as the high pressure pulls away, there is a potential 
for low pressure around 29.7 inches to move into the great lakes 
region for the weekend. 

chances for thunderstorms (50-60%) remain across the northern half 
of the lake through tonight. tonight into thursday morning there is 
a small chance (~20%) for rain and storms across the southern half. 
the chances for storms will persist through thursday afternoon 
through friday evening across the southern two thirds of the lake. 
additional chances for rain/storms remains across the entire lake 
saturday and sunday.strong to severe storms may occur at times, 
though confidence remains low in timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves over 
the lake. 


lmz261-362-364-366-563-565-567-868-020315-
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-
302 pm cdt wed jul 1 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms. waves 4 to 6 ft
occasionally to 8 ft. 
.thursday...southwest winds 10 to 20 kt. patchy fog in the
morning. slight chance of showers and thunderstorms in the
morning. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt. chance of showers in the
afternoon. waves 1 to 2 ft. 
.friday night...west winds 10 to 15 kt veering to north 5 to
10 kt. showers likely in the evening, then chance of showers
overnight. waves 1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 15 kt. showers likely.
waves 1 to 2 ft. 
.sunday...northeast winds 10 to 20 kt. chance of showers. waves
1 to 2 ft. 
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 012002
glflm 
expires:202607020315;;240476

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
302 pm cdt wed jul 1 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 remain parked over the 
southern appalachian mountains into the weekend. meanwhile, a low 
pressure system around 29.5 inches in west central manitoba slowly 
moves east toward james bay by friday. breezy south to southwest 
winds will persist through thursday. southwest winds will weaken 
becoming light thursday night through friday. heading into the 
weekend, high pressure in the appalachian range will gradually 
shift east. as the high pressure pulls away, there is a potential 
for low pressure around 29.7 inches to move into the great lakes 
region for the weekend. 

chances for thunderstorms (50-60%) remain across the northern half 
of the lake through tonight. tonight into thursday morning there is 
a small chance (~20%) for rain and storms across the southern half. 
the chances for storms will persist through thursday afternoon 
through friday evening across the southern two thirds of the lake. 
additional chances for rain/storms remains across the entire lake 
saturday and sunday.strong to severe storms may occur at times, 
though confidence remains low in timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves over 
the lake. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-020315-
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-
302 pm cdt wed jul 1 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms overnight. waves 4 to
6 ft occasionally to 8 ft. 
.thursday...southwest winds 10 to 20 kt becoming south 10 to
15 kt. chance of showers in the morning, then slight chance of
showers and thunderstorms in the afternoon. waves 3 to 5 ft
subsiding to 2 to 4 ft. 
.thursday night...south winds 10 to 15 kt becoming southwest 5 to
10 kt. chance of showers and thunderstorms in the evening, then
chance of showers overnight. waves 1 to 3 ft. 
.friday...southwest winds 10 to 15 kt becoming south. chance of
showers. waves 1 to 2 ft. 
.friday night...southwest winds 5 to 10 kt becoming west. showers
likely with a chance of thunderstorms. waves 1 to 2 ft.
.saturday...southeast winds 10 to 15 kt becoming east 10 to
20 kt. chance of showers in the morning, then chance of showers
and thunderstorms in the afternoon. waves 1 to 2 ft. 
.saturday night...northwest winds 10 to 15 kt becoming west.
showers likely with a chance of thunderstorms. waves 1 to 2 ft.
.sunday...northwest winds 10 to 15 kt becoming north. waves 1 to
3 ft. 
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 011614
glflm 
expires:202607020300;;229078

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1114 am cdt wed jul 1 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 remain to the southeast of 
the great lakes, while low pressure around 29.5 inches moves 
slowly east across central manitoba into james bay. breezy south 
to southwest winds will persist through thursday, with lighter 
winds thursday night into friday. 

chances for thunderstorms are forecast across the northern half 
of the lake the remainder of this morning through tonight. there 
are chances for thunderstorms across the southern two thirds of 
the lake thursday into friday evening, and across the southern 
half of the lake later friday night into sunday. strong to severe
storms may occur at times, though confidence remains low in 
timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves 
over the lake.


lmz565-567-020300-
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-
1114 am cdt wed jul 1 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...severe thunderstorm watch 429 in effect until 4 pm cdt this
afternoon...

.tonight...south winds 15 to 25 kt becoming southwest. chance of
showers and thunderstorms. waves 3 to 5 ft. 
.thursday...southwest winds 15 to 25 kt. patchy fog in the
morning, then patchy dense fog in the afternoon. chance of
showers in the afternoon. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. chance of showers. waves 1 to 3 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...west winds 10 to 15 kt veering to north 5 to
10 kt. showers likely with a chance of thunderstorms. waves 1 to
2 ft. 
.saturday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft. 
.sunday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 011614
glflm 
expires:202607020300;;229080

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1114 am cdt wed jul 1 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 remain to the southeast of 
the great lakes, while low pressure around 29.5 inches moves 
slowly east across central manitoba into james bay. breezy south 
to southwest winds will persist through thursday, with lighter 
winds thursday night into friday. 

chances for thunderstorms are forecast across the northern half 
of the lake the remainder of this morning through tonight. there 
are chances for thunderstorms across the southern two thirds of 
the lake thursday into friday evening, and across the southern 
half of the lake later friday night into sunday. strong to severe
storms may occur at times, though confidence remains low in 
timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves 
over the lake.


lmz669-020300-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
1114 am cdt wed jul 1 2026

sheboygan wi to pentwater mi south to port washington wi to
whitehall mi...

...severe thunderstorm watch 429 in effect until 4 pm cdt this
afternoon...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms overnight. waves 3 to
5 ft. 
.thursday...southwest winds 10 to 20 kt. chance of showers in the
afternoon. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to 5 to
10 kt overnight. chance of showers and thunderstorms. waves 1 to
3 ft. 
.friday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...southwest winds 10 to 15 kt becoming west.
showers likely with a chance of thunderstorms. waves 1 to 2 ft.
.saturday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. chance of showers. waves 1 to 2 ft. 
.sunday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 011614
glflm 
expires:202607020300;;229076

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1114 am cdt wed jul 1 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 remain to the southeast of 
the great lakes, while low pressure around 29.5 inches moves 
slowly east across central manitoba into james bay. breezy south 
to southwest winds will persist through thursday, with lighter 
winds thursday night into friday. 

chances for thunderstorms are forecast across the northern half 
of the lake the remainder of this morning through tonight. there 
are chances for thunderstorms across the southern two thirds of 
the lake thursday into friday evening, and across the southern 
half of the lake later friday night into sunday. strong to severe
storms may occur at times, though confidence remains low in 
timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves 
over the lake.


lmz362-364-366-868-020300-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
1114 am cdt wed jul 1 2026

wilmette harbor il to st. joseph mi south to rock island passage
to charlevoix mi...

...severe thunderstorm watch 428 in effect until 3 pm cdt this
afternoon...

.tonight...south winds 15 to 25 kt becoming southwest. chance of
showers and thunderstorms. waves 3 to 5 ft. 
.thursday...southwest winds 15 to 25 kt. patchy fog in the
morning, then patchy dense fog in the afternoon. chance of
showers in the afternoon. waves 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. chance of showers. waves 1 to 3 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...west winds 10 to 15 kt veering to north 5 to
10 kt. showers likely with a chance of thunderstorms. waves 1 to
2 ft. 
.saturday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft. 
.sunday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 011614
glflm 
expires:202607020300;;229079

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1114 am cdt wed jul 1 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 remain to the southeast of 
the great lakes, while low pressure around 29.5 inches moves 
slowly east across central manitoba into james bay. breezy south 
to southwest winds will persist through thursday, with lighter 
winds thursday night into friday. 

chances for thunderstorms are forecast across the northern half 
of the lake the remainder of this morning through tonight. there 
are chances for thunderstorms across the southern two thirds of 
the lake thursday into friday evening, and across the southern 
half of the lake later friday night into sunday. strong to severe
storms may occur at times, though confidence remains low in 
timing of stronger storms.

patchy marine fog will be possible at times, primarily over the 
northern half of the lake as the warm and moist airmass moves 
over the lake.


lmz080-671-673-675-777-779-870-872-874-876-878-020300-
lake michigan from michigan city in to st. joseph mi 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-
1114 am cdt wed jul 1 2026

port washington wi to whitehall mi south...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. chance of showers and thunderstorms overnight. waves 3 to
5 ft. 
.thursday...southwest winds 10 to 20 kt. chance of showers in the
afternoon. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday night...southwest winds 10 to 20 kt diminishing to 5 to
10 kt overnight. chance of showers and thunderstorms. waves 1 to
3 ft. 
.friday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...southwest winds 10 to 15 kt becoming west.
showers likely with a chance of thunderstorms. waves 1 to 2 ft.
.saturday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. chance of showers. waves 1 to 2 ft. 
.sunday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$