fzus63 kmkx 181347
glflm 
expires:202603182130;;901365

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
847 am cdt wed mar 18 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...

light to moderate south-southwest continue this morning as high 
pressure around 30.4 inches moves through the mid-atlanic region 
this morning. will see southwest winds gradually increase today as
low pressure around 29.8 inches progresses through the southern 
canadian prairies into ontario. then a weak cold front will slowly
pass across lake michigan thursday night, bringing northerly 
winds on friday. breezy southerly winds are expected saturday 
ahead of an approaching low, with gusty northerly winds likely 
sunday behind the low and associated cold front. 


lmz261-362-364-366-563-565-567-868-182130-
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-
847 am cdt wed mar 18 2026

sheboygan wi to pentwater mi north...

.rest of today...south winds 15 to 25 kt increasing to 30 kt,
then becoming southwest 15 to 25 kt late. chance of snow. waves
4 to 7 ft occasionally to 9 ft building to 8 to 11 ft
occasionally to 14 ft. 
.tonight...southwest winds 15 to 25 kt diminishing to 10 to 20 kt
late in the evening, then becoming west after midnight
diminishing to 10 to 15 kt late. slight chance of light freezing
rain and snow in the evening, then chance of rain and slight
chance of light freezing rain overnight. waves 6 to 9 ft
occasionally to 12 ft subsiding to 2 to 4 ft. 
.thursday...southwest winds 10 to 15 kt veering to north 5 to
10 kt. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.thursday night...north winds 5 to 10 kt backing to southwest
10 to 15 kt. waves 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of snow in the morning. waves 2 to 4 ft. 
.friday night...northwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt. waves 1 to 3 ft. 
.sunday...northeast winds to 30 kt becoming north. waves 6 to
9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 181347
glflm 
expires:202603182130;;901366

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
847 am cdt wed mar 18 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...

light to moderate south-southwest continue this morning as high 
pressure around 30.4 inches moves through the mid-atlanic region 
this morning. will see southwest winds gradually increase today as
low pressure around 29.8 inches progresses through the southern 
canadian prairies into ontario. then a weak cold front will slowly
pass across lake michigan thursday night, bringing northerly 
winds on friday. breezy southerly winds are expected saturday 
ahead of an approaching low, with gusty northerly winds likely 
sunday behind the low and associated cold front. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-182130-
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-
847 am cdt wed mar 18 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds to 30 kt diminishing to 10 to 20 kt.
snow through mid morning. waves 5 to 8 ft occasionally to 10 ft
building to 7 to 10 ft occasionally to 13 ft. 
.tonight...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. chance of rain overnight. waves 5 to 8 ft occasionally to
10 ft subsiding to 2 to 4 ft. 
.thursday...south winds 5 to 10 kt veering to north. chance of
rain. waves 1 to 2 ft. 
.thursday night...north winds 5 to 10 kt veering to south. waves
1 to 2 ft. 
.friday...south winds 10 to 15 kt becoming southwest. waves 1 to
3 ft. 
.friday night...northwest winds 10 to 15 kt becoming north. waves
1 to 3 ft. 
.saturday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.sunday...north winds to 30 kt. waves 7 to 10 ft occasionally to
13 ft building to 8 to 11 ft occasionally to 14 ft.  

$$