fzus63 kmkx 310834
glflm 
expires:202601311615;;839932

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
234 am cst sat jan 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...

lake effect snow showers, brisk north winds, and moderate freezing
spray will prevail today, mainly across the southern half of the 
lake. strong high pressure of 30.8 inches will settle over the 
southern great plains today. a ridge extending north from the 
high will then shift across the lake tonight, with light and 
variable winds expected. modest southwest winds will develop for 
sunday into sunday night as a trough of low pressure approaches 
from the west. the trough will then pass and shift the winds to 
northwesterly for monday.


lmz261-362-364-366-563-565-567-868-311615-
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-
234 am cst sat jan 31 2026

sheboygan wi to pentwater mi north...

.today...north winds 15 to 25 kt diminishing to 10 to 20 kt.
freezing spray this morning. waves 5 to 8 ft occasionally to
10 ft subsiding to 3 to 5 ft. 
.tonight...north winds 10 to 15 kt backing to southwest. waves
2 to 4 ft subsiding to 1 ft or less. 
.sunday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 4 to 6 ft occasionally to 8 ft. 
.sunday night...southwest winds 10 to 20 kt. chance of snow.
waves 4 to 6 ft occasionally to 8 ft. 
.monday...west winds 10 to 20 kt becoming northwest. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.monday night...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday...north winds 10 to 15 kt. waves 2 to 4 ft. 
.wednesday...north winds 10 to 15 kt becoming northwest 5 to
10 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 310834
glflm 
expires:202601311615;;839933

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
234 am cst sat jan 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...

lake effect snow showers, brisk north winds, and moderate freezing
spray will prevail today, mainly across the southern half of the 
lake. strong high pressure of 30.8 inches will settle over the 
southern great plains today. a ridge extending north from the 
high will then shift across the lake tonight, with light and 
variable winds expected. modest southwest winds will develop for 
sunday into sunday night as a trough of low pressure approaches 
from the west. the trough will then pass and shift the winds to 
northwesterly for monday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-311615-
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-
234 am cst sat jan 31 2026

sheboygan wi to pentwater mi south...

.today...north winds 15 to 25 kt diminishing to 10 to 20 kt.
freezing spray this morning. scattered snow showers. waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft. 
.tonight...north winds 10 to 20 kt becoming northeast 5 to 10 kt
after midnight, then backing to southwest late. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.sunday night...southwest winds 10 to 20 kt. chance of snow.
waves 4 to 6 ft occasionally to 8 ft. 
.monday...west winds 10 to 20 kt becoming northwest. waves 4 to
6 ft occasionally to 8 ft. 
.monday night...northwest winds 10 to 15 kt. waves 2 to 4 ft. 
.tuesday...north winds 10 to 15 kt. waves 2 to 4 ft. 
.wednesday...north winds 10 to 15 kt. waves 2 to 4 ft.  

$$