fzus63 kmkx 241332
glflm 
expires:202608242115;;281298

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
832 am cdt mon aug 24 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...

29.7 inch low pressure remains nearly stationary over western 
quebec this afternoon, resulting in continued breezy northwest 
winds across the open waters of lake michigan. the breezy 
conditions will continue through through the remainder of the 
afternoon as the low lingers over the same general vicinity. 
currently centered from western lake superior toward north-central
wisconsin, 30.1 inch high pressure will gradually work over lake 
michigan this evening, bringing decreasing winds. expect readings 
to become light and variable near or just after sunset.

light and variable winds will continue into tonight as high pressure 
lingers over the western great lakes. the high will shift east into 
ontario tomorrow, resulting in a south-southwest wind shift across 
the waters. 29.7 inch low pressure will approach from the 
northern great plains tomorrow night into wednesday, reinforcing 
the south-southwesterly wind pattern. the low will cross lake 
michigan during the second half of the day wednesday, bringing a 
breezy northwest wind shift. gales are not expected as this 
occurs. showers and thunderstorms will accompany the 
approaching/passing surface low tomorrow night into wednesday 
afternoon. widespread severe weather is unlikely in these storms, 
though an isolated stronger storm with hail and gusty winds can't 
be ruled out. the next area of 30.1 inch high pressure will 
gradually build toward lake michigan from the northern great 
plains wednesday night through friday, bringing slowly decreasing 
winds. shower and storm chances return this weekend. whether any 
storms will be severe remains uncertain, with trends being 
monitored through this week. 


lmz261-362-364-366-563-565-567-868-242115-
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-
832 am cdt mon aug 24 2026

sheboygan wi to pentwater mi north...

.rest of today...northwest winds 15 to 25 kt becoming north.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tonight...north winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.tuesday...south winds 5 to 10 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.tuesday night...south winds 15 to 25 kt. chance of showers
overnight. waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...south winds to 30 kt becoming southwest. chance of
showers in the morning, then chance of showers and thunderstorms
in the afternoon. waves 4 to 7 ft occasionally to 9 ft. 
.wednesday night...west winds 15 to 25 kt becoming northwest
10 to 20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday...northwest winds 15 to 25 kt increasing to 30 kt.
waves 1 to 3 ft. 
.friday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 241332
glflm 
expires:202608242115;;281299

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
832 am cdt mon aug 24 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...

29.7 inch low pressure remains nearly stationary over western 
quebec this afternoon, resulting in continued breezy northwest 
winds across the open waters of lake michigan. the breezy 
conditions will continue through through the remainder of the 
afternoon as the low lingers over the same general vicinity. 
currently centered from western lake superior toward north-central
wisconsin, 30.1 inch high pressure will gradually work over lake 
michigan this evening, bringing decreasing winds. expect readings 
to become light and variable near or just after sunset.

light and variable winds will continue into tonight as high pressure 
lingers over the western great lakes. the high will shift east into 
ontario tomorrow, resulting in a south-southwest wind shift across 
the waters. 29.7 inch low pressure will approach from the 
northern great plains tomorrow night into wednesday, reinforcing 
the south-southwesterly wind pattern. the low will cross lake 
michigan during the second half of the day wednesday, bringing a 
breezy northwest wind shift. gales are not expected as this 
occurs. showers and thunderstorms will accompany the 
approaching/passing surface low tomorrow night into wednesday 
afternoon. widespread severe weather is unlikely in these storms, 
though an isolated stronger storm with hail and gusty winds can't 
be ruled out. the next area of 30.1 inch high pressure will 
gradually build toward lake michigan from the northern great 
plains wednesday night through friday, bringing slowly decreasing 
winds. shower and storm chances return this weekend. whether any 
storms will be severe remains uncertain, with trends being 
monitored through this week. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-242115-
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-
832 am cdt mon aug 24 2026

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 10 to 20 kt becoming north.
waves 3 to 5 ft. 
.tonight...north winds 10 to 20 kt diminishing to 5 to 10 kt late
in the evening, then becoming west after midnight becoming west
5 to 10 kt late. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.tuesday...southwest winds 5 to 10 kt increasing to 10 to 15 kt
late in the morning, then becoming south 10 to 20 kt in the
afternoon. waves 1 to 3 ft building to 3 to 5 ft. 
.tuesday night...south winds 10 to 20 kt increasing to 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds to 30 kt. chance of showers and
thunderstorms in the afternoon. waves 4 to 7 ft occasionally to
9 ft. 
.wednesday night...southwest winds 15 to 25 kt becoming west
10 to 20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.friday...north winds 10 to 15 kt. waves 1 to 2 ft.  

$$