fzus63 kmkx 160200
glflm 
expires:202604160915;;438770

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 pm cdt wed apr 15 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 remains stalled the middle portion of the
lake. it will slowly sink south to the southern end of the lake 
by noon thursday. a marine dense fog advisory remains in effect 
until thursday morning while this front lingers. 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 then clear the lake thursday 
afternoon and northerly winds will prevail over whole lake. 

areas of showers and storms will continue to move over the 
southern third of lake michigan this evening through thursday
morning. a few storms could be severe this evening with large 
hail being the primary concern. 

winds will become light and variable briefly thursday night as a 
weak ridge passes over the lake, with winds then becoming 
southerly and breezy friday ahead of low pressure of 29.6 inches 
approaching from the west. gusty northwest winds then return 
following a cold front friday night. thunderstorms are possible 
friday evening into saturday morning, with gusty winds and small
hail.


lmz261-362-364-366-563-565-567-868-160915-
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-
900 pm cdt wed apr 15 2026

sheboygan wi to pentwater mi north...

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

.rest of tonight...southeast winds 5 to 10 kt backing to
northeast. areas of dense fog. chance of rain showers and slight
chance of thunderstorms. waves 1 to 2 ft. 
.thursday...north winds 10 to 15 kt. chance of rain showers and
slight chance of thunderstorms in the morning. areas of dense fog
in the morning, then patchy fog in the afternoon. waves 1 to
3 ft. 
.thursday night...northwest winds 5 to 10 kt veering to
southeast. patchy fog in the evening. waves 1 to 2 ft subsiding
to 1 ft or less. 
.friday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft. 
.friday night...south winds to 30 kt. rain showers. waves 6 to
9 ft occasionally to 12 ft. 
.saturday...west winds to 30 kt diminishing to 15 to 25 kt. rain
showers in the morning, then chance of rain showers in the
afternoon. waves 5 to 8 ft occasionally to 10 ft subsiding to
4 to 7 ft occasionally to 9 ft. 
.saturday night...west winds to 30 kt. waves 4 to 7 ft
occasionally to 9 ft building to 5 to 8 ft occasionally to 10 ft.
.sunday...northwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.monday...west winds 10 to 20 kt becoming south. waves 3 to 5 ft.
 

$$

fzus63 kmkx 160200
glflm 
expires:202604160915;;438771

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 pm cdt wed apr 15 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 remains stalled the middle portion of the
lake. it will slowly sink south to the southern end of the lake 
by noon thursday. a marine dense fog advisory remains in effect 
until thursday morning while this front lingers. 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 then clear the lake thursday 
afternoon and northerly winds will prevail over whole lake. 

areas of showers and storms will continue to move over the 
southern third of lake michigan this evening through thursday
morning. a few storms could be severe this evening with large 
hail being the primary concern. 

winds will become light and variable briefly thursday night as a 
weak ridge passes over the lake, with winds then becoming 
southerly and breezy friday ahead of low pressure of 29.6 inches 
approaching from the west. gusty northwest winds then return 
following a cold front friday night. thunderstorms are possible 
friday evening into saturday morning, with gusty winds and small
hail.


lmz080-669-671-673-675-777-779-870-872-874-876-878-160915-
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-
900 pm cdt wed apr 15 2026

sheboygan wi to pentwater mi south...

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

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

$$