fzus63 kmkx 312031 aaa
glflm 
expires:202608010315;;407218

open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
331 pm cdt fri jul 31 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...

low pressure around 29.7 inches will continue to track
southeastward across ia this evening and deepen to around 29.5 
inches as it pushes into il overnight into saturday. will see 
southeasterly winds across the lake shift more easterly through 
the evening and increase as the low pressure slowly moves through 
the region. then looking at stronger northeasterly winds with 
gusts up to 25-30 knots across southern half of lake michigan 
through the day saturday and lingering into sunday as the low 
pressure slowly tracks over the eastern great lakes. isolated and 
infrequent gusts to gale-force will be possible at times this 
weekend on the backside of the deepening low pressure. winds then 
diminish into the start of next week as the low pressure pushes 
further east while high pressure begins to build across the upper 
great lakes region monday and tuesday. this will bring lighter and
more variable winds to lake michigan before southerly winds 
return by midweek as another low pressure system develops over the
plains.


lmz261-362-364-366-563-565-567-868-010315-
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-
331 pm cdt fri jul 31 2026

sheboygan wi to pentwater mi north...

.tonight...northwest winds 10 to 15 kt becoming north 10 to 20 kt
late this evening, then becoming northeast 15 to 25 kt overnight.
showers likely with slight chance of thunderstorms this evening,
then chance of showers overnight. waves 1 to 2 ft building to
3 to 5 ft. 
.saturday...northeast winds 15 to 25 kt. chance of showers. waves
4 to 6 ft occasionally to 8 ft. 
.saturday night...northeast winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.sunday...northeast winds to 30 kt. waves 5 to 8 ft occasionally
to 10 ft. 
.sunday night...north winds to 30 kt becoming northeast 10 to
20 kt overnight. waves 4 to 7 ft occasionally to 9 ft subsiding
to 2 to 4 ft. 
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 3 ft. 
.monday night...east winds 10 to 20 kt becoming southeast 5 to
10 kt. waves 1 to 2 ft. 
.tuesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.wednesday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 312031 aaa
glflm 
expires:202608010315;;407219

open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
331 pm cdt fri jul 31 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...

low pressure around 29.7 inches will continue to track
southeastward across ia this evening and deepen to around 29.5 
inches as it pushes into il overnight into saturday. will see 
southeasterly winds across the lake shift more easterly through 
the evening and increase as the low pressure slowly moves through 
the region. then looking at stronger northeasterly winds with 
gusts up to 25-30 knots across southern half of lake michigan 
through the day saturday and lingering into sunday as the low 
pressure slowly tracks over the eastern great lakes. isolated and 
infrequent gusts to gale-force will be possible at times this 
weekend on the backside of the deepening low pressure. winds then 
diminish into the start of next week as the low pressure pushes 
further east while high pressure begins to build across the upper 
great lakes region monday and tuesday. this will bring lighter and
more variable winds to lake michigan before southerly winds 
return by midweek as another low pressure system develops over the
plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-010315-
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-
331 pm cdt fri jul 31 2026

sheboygan wi to pentwater mi south...

.tonight...southeast winds 10 to 20 kt becoming east late this
evening, then becoming northeast 15 to 25 kt after midnight
becoming east to 30 kt late. showers likely with slight chance of
thunderstorms this evening, then showers and slight chance of
thunderstorms overnight. waves 2 to 4 ft building to 5 to 8 ft
occasionally to 10 ft. 
.saturday...east winds to 30 kt becoming northeast. showers and
slight chance of thunderstorms in the morning, then showers
likely with slight chance of thunderstorms in the afternoon.
waves 6 to 9 ft occasionally to 12 ft. 
.saturday night...northeast winds to 30 kt. chance of showers in
the evening. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...north winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft building to 8 to 11 ft occasionally to 14 ft. 
.sunday night...north winds to 30 kt becoming northeast 10 to
20 kt overnight. waves 7 to 10 ft occasionally to 13 ft subsiding
to 5 to 8 ft occasionally to 10 ft. 
.monday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.monday night...northeast winds 10 to 20 kt becoming east 5 to
10 kt. waves 1 to 3 ft. 
.tuesday...east winds 5 to 10 kt veering to southwest 10 to
20 kt. waves 1 to 2 ft. 
.wednesday...southwest winds 10 to 15 kt becoming south. waves
1 to 2 ft.  

$$