fzus63 kmkx 250905
glflm 
expires:202511251645;;469773

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cst tue nov 25 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...

relatively light south to southeast winds will persist through
today as low pressure of 29.7 inches approaches from the
minnesota/iowa border. a cold front is expected to pass over the
lake tonight, turning winds southwest and breezy, with winds
steadily increasing toward daybreak on wednesday.

a period of very strong west to northwest winds are then expected
through wednesday as strong mixing may bring storm force wind 
gusts to the southern two-thirds of the lake, with gales 
anticipated over the northern third. a storm watch is in effect 
through wednesday into early thursday morning. winds will ease
slightly thursday, but gales are then expected to continue into 
early friday as the low pressure moves into eastern canada and 
deepens to 29.2 inches. 


lmz366-565-567-868-251645-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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 am cst tue nov 25 2025

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

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

.today...south winds 5 to 10 kt becoming southeast. patchy fog.
chance of drizzle. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.tonight...south winds 5 to 10 kt increasing to 10 to 20 kt late
in the evening, then increasing to 15 to 25 kt after midnight
becoming southwest to 30 kt late. chance of rain in the evening,
then rain overnight. waves 1 to 2 ft building to 5 to 8 ft
occasionally to 10 ft. 
.wednesday...southwest gales to 35 kt becoming west gales to
40 kt late in the morning, then increasing to gales to 45 kt
early in the afternoon becoming northwest storm force winds to
50 kt late. rain in the morning, then rain and snow in the
afternoon. waves 12 to 16 ft occasionally to 21 ft building to
15 to 20 ft occasionally to 26 ft. 
.wednesday night...northwest storm force winds to 50 kt
diminishing to gales to 45 kt. snow likely in the evening, then
chance of snow overnight. waves 15 to 20 ft occasionally to
26 ft. 
.thursday...northwest gales to 45 kt diminishing to gales to
35 kt in the afternoon. chance of snow. waves 12 to 16 ft
occasionally to 21 ft. 
.thursday night...northwest gales to 35 kt diminishing to 30 kt.
chance of snow. waves 8 to 12 ft occasionally to 16 ft subsiding
to 7 to 10 ft occasionally to 13 ft. 
.friday...northwest winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.saturday...southwest winds 10 to 20 kt becoming south. snow
likely. waves 1 to 2 ft building to 3 to 5 ft.  

$$

fzus63 kmkx 250905
glflm 
expires:202511251645;;469774

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
305 am cst tue nov 25 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...

relatively light south to southeast winds will persist through
today as low pressure of 29.7 inches approaches from the
minnesota/iowa border. a cold front is expected to pass over the
lake tonight, turning winds southwest and breezy, with winds
steadily increasing toward daybreak on wednesday.

a period of very strong west to northwest winds are then expected
through wednesday as strong mixing may bring storm force wind 
gusts to the southern two-thirds of the lake, with gales 
anticipated over the northern third. a storm watch is in effect 
through wednesday into early thursday morning. winds will ease
slightly thursday, but gales are then expected to continue into 
early friday as the low pressure moves into eastern canada and 
deepens to 29.2 inches. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-251645-
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-
305 am cst tue nov 25 2025

sheboygan wi to pentwater mi south...

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

.today...southeast winds 5 to 10 kt becoming south. patchy fog.
rain likely with a chance of drizzle this morning, then slight
chance of drizzle this afternoon. waves 1 to 3 ft subsiding to
1 to 2 ft. 
.tonight...south winds 10 to 15 kt becoming southwest 15 to 25 kt
late in the evening, then increasing to 30 kt after midnight
increasing to gales to 35 kt late. chance of rain in the evening,
then slight chance of rain overnight. waves 1 to 2 ft building to
8 to 11 ft occasionally to 14 ft. 
.wednesday...west gales to 40 kt increasing to storm force winds
to 55 kt. rain and snow likely in the morning, then snow in the
afternoon. waves 12 to 16 ft occasionally to 21 ft building to
20 to 25 ft occasionally to 33 ft. 
.wednesday night...west storm force winds to 50 kt becoming 
northwest storm force winds to 50 kt. chance of snow. waves 20 to 
25 ft occasionally to 33 ft. 
.thursday...northwest gales to 45 kt diminishing to gales to
40 kt. chance of snow. waves 14 to 18 ft occasionally to 23 ft
subsiding to 12 to 16 ft occasionally to 21 ft. 
.thursday night...northwest gales to 35 kt diminishing to 30 kt.
chance of snow. waves 10 to 14 ft occasionally to 18 ft. 
.friday...northwest winds to 30 kt diminishing to 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.saturday...south winds 10 to 20 kt. snow likely. waves 3 to 5 ft
building to 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 250333
glflm 
expires:202511251030;;455897

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
933 pm 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 decrease overnight, as the broadened low 
pressure around 29.7 inches pushes over the western great lakes 
region through tuesday. the low will strengthen to 29.6 inches as
it tracks across minnesota tuesday. the associated cold front 
surges across southern lake michigan tuesday night and shifts
through 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. it remains possible for some storm force gusts 
wednesday afternoon and night, and we cannot rule out a shorter- 
fused storm warning. however, a gale watch remains in effect at 
this time.

winds will diminish friday, as high pressure of 30.5 inches 
crosses the midwest. look for southerly winds to develop sunday,
as low pressure develops over the western half of the country. 
more gales will be possible this weekend into early next week.


lmz261-362-364-366-563-565-567-868-251030-
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-
933 pm cst mon nov 24 2025

sheboygan wi to pentwater mi north...

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

.rest of tonight...southwest winds 10 to 20 kt diminishing to
10 to 15 kt. patchy fog. numerous rain showers late this evening,
then scattered rain showers overnight. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.tuesday...south winds 10 to 15 kt diminishing to 5 to 10 kt.
patchy fog. chance of rain and scattered rain showers in the
morning, then chance of rain in the afternoon. waves 1 to 3 ft. 
.tuesday night...south winds 10 to 15 kt increasing to 10 to
20 kt late in the evening, then increasing to 15 to 25 kt after
midnight becoming southwest to 30 kt late. patchy fog in the
evening. rain. waves 1 to 2 ft building to 6 to 9 ft occasionally
to 12 ft. 
.wednesday...west gales to 45 kt. a few gusts to 50 kt. rain in 
the morning, then rain and snow in the afternoon. waves 10 to 14 
ft occasionally to 18 ft building to 14 to 18 ft occasionally to 
23 ft. 
.wednesday night...northwest gales to 45 kt. a few gusts to 50 kt.
snow in the evening, then chance of snow overnight. waves 14 to 
18 ft occasionally to 23 ft. 
.thursday...northwest gales to 45 kt. a few gusts to 50 kt. 
chance of snow. waves 12 to 16 ft occasionally to 21 ft.
.thursday night...northwest gales to 45 kt diminishing to gales
to 40 kt. chance of snow. waves 8 to 12 ft occasionally to 16 ft
subsiding to 7 to 10 ft occasionally to 13 ft. 
.friday...northwest winds to 30 kt. chance of snow. waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.saturday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. chance of snow. waves 1 to 3 ft building to 4 to 6 ft
occasionally to 8 ft.  

$$