fzus63 kmkx 150246
glflm 
expires:202604150930;;383637

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 pm cdt tue apr 14 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...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. the front will clear the lake as a cold front friday, 
before low pressure of 29.6 inches approaches from the west.

thunderstorms are possible over the southern third overnight into
thursday morning, then thursday late afternoon and night.
thunderstorm chances return along a cold front friday night. 


lmz673-675-150930-
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-
946 pm cdt tue apr 14 2026

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

...tornado watch 109 in effect until 10 pm cdt this evening...

.rest of tonight...south winds 15 to 25 kt becoming southwest
10 to 20 kt. areas of dense fog. showers with thunderstorms
likely late this evening, then chance of showers and
thunderstorms overnight. waves 2 to 4 ft. 
.wednesday...southwest winds 10 to 20 kt becoming south 10 to
15 kt. areas of dense fog in the morning, then patchy dense fog
in the afternoon. chance of rain showers and thunderstorms. waves
1 to 3 ft. 
.wednesday night...south winds 10 to 15 kt. patchy fog in the
evening. rain showers with a chance of thunderstorms. waves 1 to
3 ft. 
.thursday...southwest winds 10 to 15 kt veering to northwest 5 to
10 kt. chance of rain showers in the morning, then chance of rain
showers and thunderstorms in the afternoon. waves 1 to 3 ft. 
.thursday night...north winds 5 to 10 kt. waves 1 to 2 ft. 
.friday...southeast winds 5 to 10 kt increasing to 10 to 20 kt in
the afternoon. waves 1 to 2 ft building to 1 to 3 ft. 
.friday night...southeast winds 15 to 25 kt becoming south.
showers with a chance of thunderstorms. waves 3 to 5 ft building
to 4 to 7 ft occasionally to 9 ft. 
.saturday...south winds 15 to 25 kt becoming west. showers
likely. waves 5 to 8 ft occasionally to 10 ft. 
.sunday...west winds to 30 kt becoming northwest. waves 7 to
10 ft occasionally to 13 ft subsiding to 6 to 9 ft occasionally
to 12 ft.  

$$

fzus63 kmkx 150246
glflm 
expires:202604150930;;383634

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 pm cdt tue apr 14 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...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. the front will clear the lake as a cold front friday, 
before low pressure of 29.6 inches approaches from the west.

thunderstorms are possible over the southern third overnight into
thursday morning, then thursday late afternoon and night.
thunderstorm chances return along a cold front friday night. 


lmz261-362-364-366-563-565-567-868-150930-
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-
946 pm cdt tue apr 14 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 7 am cdt wednesday...

.rest of tonight...northeast winds 10 to 20 kt becoming north
10 to 15 kt. areas of dense fog. chance of rain showers and
slight chance of thunderstorms late this evening, then slight
chance of rain showers overnight. waves 1 to 3 ft. 
.wednesday...north winds 10 to 15 kt diminishing to 5 to 10 kt.
areas of dense fog in the morning, then patchy fog in the
afternoon. slight chance of rain showers in the morning, then
chance of rain showers and slight chance of thunderstorms in the
afternoon. waves 1 to 3 ft. 
.wednesday night...northeast winds 5 to 10 kt increasing to 10 to
15 kt. patchy fog in the evening. rain showers likely with a
chance of thunderstorms in the evening, then chance of rain
showers overnight. waves 1 to 2 ft. 
.thursday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of rain showers. waves 1 to 3 ft. 
.thursday night...north winds 5 to 10 kt becoming northeast.
waves 1 to 3 ft. 
.friday...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.friday night...southeast winds 15 to 25 kt becoming south to
30 kt. chance of rain showers. waves 4 to 7 ft occasionally to
9 ft building to 6 to 9 ft occasionally to 12 ft. 
.saturday...south winds to 30 kt becoming southwest. chance of
rain showers. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest gales to 35 kt. waves 8 to 12 ft occasionally
to 16 ft subsiding to 8 to 11 ft occasionally to 14 ft.  

$$

fzus63 kmkx 150246
glflm 
expires:202604150930;;383635

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 pm cdt tue apr 14 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...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. the front will clear the lake as a cold front friday, 
before low pressure of 29.6 inches approaches from the west.

thunderstorms are possible over the southern third overnight into
thursday morning, then thursday late afternoon and night.
thunderstorm chances return along a cold front friday night. 


lmz669-671-870-872-150930-
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 whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
946 pm cdt tue apr 14 2026

sheboygan wi to pentwater mi south to north point light wi to
grand haven mi...

...dense fog advisory in effect until 7 am cdt wednesday...

.rest of tonight...south winds 15 to 25 kt becoming southwest
10 to 20 kt. areas of dense fog. rain showers likely with a
chance of thunderstorms late this evening, then slight chance of
rain showers and thunderstorms overnight. waves 1 to 3 ft. 
.wednesday...west winds 10 to 20 kt becoming southwest 10 to
15 kt late in the morning, then becoming south 5 to 10 kt early
in the afternoon backing to northeast 10 to 15 kt late. areas of
dense fog in the morning, then patchy fog in the afternoon.
chance of rain showers and slight chance of thunderstorms in the
morning, then rain showers likely with a chance of thunderstorms
in the afternoon. waves 1 to 3 ft. 
.wednesday night...east winds 10 to 15 kt becoming southeast 5 to
10 kt. patchy fog in the evening. rain showers with a chance of
thunderstorms in the evening, then rain showers likely with a
chance of thunderstorms overnight. waves 1 to 3 ft. 
.thursday...northwest winds 10 to 20 kt diminishing to 10 to
15 kt. chance of rain showers. waves 1 to 3 ft. 
.thursday night...north winds 5 to 10 kt. waves 1 to 3 ft. 
.friday...southeast winds 5 to 10 kt becoming south 10 to 20 kt
in the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.friday night...southeast winds 15 to 25 kt becoming south to
30 kt. rain showers with a chance of thunderstorms. waves 4 to
6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to
10 ft. 
.saturday...south winds to 30 kt becoming southwest. rain showers
likely. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest gales to 35 kt diminishing to 30 kt. waves
8 to 12 ft occasionally to 16 ft.  

$$

fzus63 kmkx 150246
glflm 
expires:202604150930;;383636

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 pm cdt tue apr 14 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...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. the front will clear the lake as a cold front friday, 
before low pressure of 29.6 inches approaches from the west.

thunderstorms are possible over the southern third overnight into
thursday morning, then thursday late afternoon and night.
thunderstorm chances return along a cold front friday night. 


lmz080-777-779-874-876-878-150930-
lake michigan from michigan city in to st. joseph mi 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 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-
946 pm cdt tue apr 14 2026

winthrop harbor il to south haven mi south...

.rest of tonight...south winds 15 to 25 kt becoming southwest.
patchy fog late this evening, then areas of dense fog overnight.
showers with thunderstorms likely late this evening, then showers
likely with a chance of thunderstorms overnight. waves 2 to 4 ft.
.wednesday...southwest winds 10 to 20 kt becoming south. areas of
dense fog in the morning, then patchy dense fog in the afternoon.
rain showers likely with a chance of thunderstorms in the
morning, then chance of rain showers and thunderstorms in the
afternoon. waves 1 to 3 ft. 
.wednesday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. patchy fog in the evening. rain showers with a chance of
thunderstorms. waves 1 to 3 ft. 
.thursday...southwest winds 15 to 25 kt becoming west 10 to 15 kt
in the afternoon. rain showers likely in the morning, then rain
showers likely with a chance of thunderstorms in the afternoon.
waves 2 to 4 ft. 
.thursday night...northwest winds 5 to 10 kt becoming north.
waves 1 to 3 ft. 
.friday...southeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.friday night...southeast winds 15 to 25 kt becoming south.
showers with a chance of thunderstorms. waves 3 to 5 ft building
to 4 to 7 ft occasionally to 9 ft. 
.saturday...south winds 15 to 25 kt becoming southwest. chance of
showers. waves 5 to 8 ft occasionally to 10 ft. 
.sunday...west winds to 30 kt becoming northwest. waves 8 to
12 ft occasionally to 16 ft.  

$$