fzus63 kmkx 251938
glflm 
expires:202610260315;;176520

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 pm cdt sun oct 25 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 29.3 inches shifting east of hudson bay 
and high pressure around 30.6 inches tracking from saskatchewan 
to the northern great lakes through monday will result in a 
slow moving cold front from north to south across lake michigan.
expect modest southerly winds to abruptly become north to 
northeasterly with the frontal passage from north to south
overnight into monday morning. breezy north to northeast winds 
will continue through monday evening. look for winds to become 
southeasterly tuesday as low pressure of 30.0 inches tracks from
southwest minnesota to the duluth area, and become breezy out of
the south on wednesday as the next low of 29.9 inches takes a
similar path. winds will shift to northerly on thursday in the
wake of the associated trough. 


lmz261-362-364-366-563-565-567-868-260315-
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-
238 pm cdt sun oct 25 2026

sheboygan wi to pentwater mi north...

.tonight...north winds 10 to 15 kt increasing to 10 to 20 kt.
chance of rain showers this evening, then slight chance of rain
showers overnight. waves 2 to 4 ft. 
.monday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.monday night...northeast winds 15 to 25 kt becoming east 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.tuesday...southeast winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.tuesday night...southeast winds 15 to 25 kt becoming south.
waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...south winds to 30 kt. waves 4 to 6 ft occasionally
to 8 ft. 
.wednesday night...south winds to 30 kt becoming southwest.
chance of showers. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...southwest winds 15 to 25 kt becoming west 10 to
20 kt. chance of showers. waves 3 to 5 ft. 
.friday...east winds 10 to 15 kt veering to south. chance of
showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 251938
glflm 
expires:202610260315;;176521

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
238 pm cdt sun oct 25 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 29.3 inches shifting east of hudson bay 
and high pressure around 30.6 inches tracking from saskatchewan 
to the northern great lakes through monday will result in a 
slow moving cold front from north to south across lake michigan.
expect modest southerly winds to abruptly become north to 
northeasterly with the frontal passage from north to south
overnight into monday morning. breezy north to northeast winds 
will continue through monday evening. look for winds to become 
southeasterly tuesday as low pressure of 30.0 inches tracks from
southwest minnesota to the duluth area, and become breezy out of
the south on wednesday as the next low of 29.9 inches takes a
similar path. winds will shift to northerly on thursday in the
wake of the associated trough. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-260315-
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-
238 pm cdt sun oct 25 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 10 to 15 kt veering to north 10 to 20 kt.
waves 3 to 5 ft. 
.monday...north winds 10 to 20 kt becoming northeast 15 to 25 kt.
waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft
occasionally to 9 ft. 
.monday night...northeast winds 15 to 25 kt becoming east 10 to
20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.tuesday...southeast winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.tuesday night...southeast winds 10 to 20 kt becoming south.
waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft. 
.wednesday night...south winds 15 to 25 kt becoming southwest
10 to 20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...southwest winds 10 to 20 kt. chance of showers. waves
3 to 5 ft. 
.friday...east winds 10 to 15 kt becoming southeast. chance of
showers. waves 1 to 3 ft.  

$$