fzus63 kmkx 241540
glflm 
expires:202511242215;;427564

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
940 am cst mon nov 24 2025

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...

southerly winds will increase today as low pressure around 29.7
inches develops in the northern plains. the low will strengthen
to 29.6 inches as it tracks across minnesota on tuesday. the 
associated cold front will surge across southern lake michigan 
tuesday night and expand into northern lake michigan wednesday as
the low further deepens to 29.3 inches over eastern lake 
superior. the strong low will generally maintain its strength as
it crosses ontario wednesday night and quebec on thursday.

westerly gales will likely develop over southern lake michigan 
early wednesday morning and expand into the north half several
hours later. the westerly gales will become northwesterly 
wednesday night and persist into thursday afternoon before 
diminishing. a gale watch is in effect.

winds will diminish as high pressure of 30.5 inches crosses the
midwest on friday. look for southerly winds to develop sunday as
low pressure develops over the western half of the country.


lmz261-362-364-366-563-565-567-868-242215-
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-
940 am cst mon nov 24 2025

sheboygan wi to pentwater mi north...

...gale watch in effect from wednesday morning through late
thursday night...

.rest of today...southwest winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.tonight...southwest winds 10 to 20 kt becoming south 5 to 10 kt.
chance of rain. patchy fog overnight. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.tuesday...south winds 5 to 10 kt increasing to 10 to 15 kt.
chance of rain. waves 1 to 3 ft. 
.tuesday night...south winds 10 to 20 kt becoming southwest to
30 kt overnight. rain. waves 2 to 4 ft building to 6 to 9 ft
occasionally to 12 ft. 
.wednesday...west gales to 40 kt increasing to gales to 45 kt.
rain in the morning, then rain and snow in the afternoon. waves
12 to 16 ft occasionally to 21 ft. 
.wednesday night...northwest gales to 45 kt diminishing to gales
to 40 kt. snow. waves 12 to 16 ft occasionally to 21 ft. 
.thursday...northwest gales to 40 kt. chance of snow. waves 10 to
14 ft occasionally to 18 ft subsiding to 8 to 11 ft occasionally
to 14 ft. 
.friday...northwest winds to 30 kt. chance of snow. waves 5 to
8 ft occasionally to 10 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 241540
glflm 
expires:202511242215;;427565

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
940 am cst mon nov 24 2025

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...

southerly winds will increase today as low pressure around 29.7
inches develops in the northern plains. the low will strengthen
to 29.6 inches as it tracks across minnesota on tuesday. the 
associated cold front will surge across southern lake michigan 
tuesday night and expand into northern lake michigan wednesday as
the low further deepens to 29.3 inches over eastern lake 
superior. the strong low will generally maintain its strength as
it crosses ontario wednesday night and quebec on thursday.

westerly gales will likely develop over southern lake michigan 
early wednesday morning and expand into the north half several
hours later. the westerly gales will become northwesterly 
wednesday night and persist into thursday afternoon before 
diminishing. a gale watch is in effect.

winds will diminish as high pressure of 30.5 inches crosses the
midwest on friday. look for southerly winds to develop sunday as
low pressure develops over the western half of the country.


lmz080-669-671-673-675-777-779-870-872-874-876-878-242215-
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-
940 am cst mon nov 24 2025

sheboygan wi to pentwater mi south...

...gale watch in effect from late tuesday night through thursday
evening...

.rest of today...south winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.tonight...south winds 10 to 20 kt diminishing to 10 to 15 kt.
slight chance of rain in the evening, then chance of rain
overnight. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.tuesday...south winds 5 to 10 kt. chance of rain in the morning.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.tuesday night...south winds 10 to 20 kt becoming west gales to
35 kt overnight. rain in the evening, then chance of rain
overnight. waves 2 to 4 ft building to 8 to 11 ft occasionally to
14 ft. 
.wednesday...west gales to 45 kt. rain and snow likely in the
morning, then snow likely in the afternoon. waves 12 to 16 ft
occasionally to 21 ft building to 14 to 18 ft occasionally to
23 ft. 
.wednesday night...west gales to 45 kt diminishing to gales to
40 kt. chance of snow. waves 14 to 18 ft occasionally to 23 ft. 
.thursday...northwest gales to 40 kt. chance of snow. waves 12 to
16 ft occasionally to 21 ft. 
.friday...northwest winds to 30 kt diminishing to 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 7 ft
occasionally to 9 ft.  

$$