fzus63 kmkx 181947
glflm 
expires:202603190315;;915816

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
247 pm 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...

breezy south to southwest winds will continue through late
afternoon as low pressure of 29.8 inches pass by north of lake
michigan. high pressure of 30.2 inches will then move overhead 
tonight and thursday, bringing lighter winds to the lake. light to
moderate south to southwest winds are expected thursday night 
into early friday ahead of a cold front, with winds becoming 
northerly through the day friday as the front drops through the 
area. breezy southerly winds are likely saturday ahead of an 
approaching low, with gusty northerly winds possible sunday 
behind the low and associated cold front. 


lmz261-362-364-366-563-565-567-868-190315-
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-
247 pm cdt wed mar 18 2026

sheboygan wi to pentwater mi north...

.tonight...southwest winds 15 to 25 kt becoming west 10 to 20 kt.
slight chance of rain overnight. waves 4 to 7 ft occasionally to
9 ft subsiding to 2 to 4 ft. 
.thursday...northwest winds 10 to 15 kt becoming northeast 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 3 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of light freezing rain in the morning. waves 1 to 3 ft. 
.friday night...northwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 2 ft. 
.saturday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft. 
.saturday night...north winds 15 to 25 kt increasing to 30 kt.
chance of rain and snow. waves 4 to 6 ft occasionally to 8 ft
building to 6 to 9 ft occasionally to 12 ft. 
.sunday...northeast winds to 30 kt. waves 7 to 10 ft occasionally
to 13 ft. 
.monday...northeast winds 10 to 20 kt becoming north. waves 4 to
7 ft occasionally to 9 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 181947
glflm 
expires:202603190315;;915817

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
247 pm 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...

breezy south to southwest winds will continue through late
afternoon as low pressure of 29.8 inches pass by north of lake
michigan. high pressure of 30.2 inches will then move overhead 
tonight and thursday, bringing lighter winds to the lake. light to
moderate south to southwest winds are expected thursday night 
into early friday ahead of a cold front, with winds becoming 
northerly through the day friday as the front drops through the 
area. breezy southerly winds are likely saturday ahead of an 
approaching low, with gusty northerly winds possible sunday 
behind the low and associated cold front. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-190315-
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-
247 pm cdt wed mar 18 2026

sheboygan wi to pentwater mi south...

.tonight...southwest winds 10 to 20 kt becoming west 5 to 10 kt.
chance of rain overnight. waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft. 
.thursday...northwest winds 5 to 10 kt becoming northeast. chance
of rain in the morning. 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...southwest winds 10 to 15 kt becoming south. waves
2 to 4 ft. 
.saturday night...southwest winds 10 to 20 kt veering to
northwest to 30 kt. waves 3 to 5 ft building to 6 to 9 ft
occasionally to 12 ft. 
.sunday...north winds to 30 kt. waves 8 to 12 ft occasionally to
16 ft. 
.monday...northeast winds 15 to 25 kt becoming north 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft.  

$$