fzus63 kmkx 041954
glflm 
expires:202604050315;;834895

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 pm cdt sat apr 4 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...

winds will continue to veer southwest and accelerate this
afternoon as low pressure around 29.6 inches crosses northern 
portions of the lake. as low pressure exits into ontario and 
deepens to 29.3 inches, expect winds to become due westerly and 
gust to around 30 kt through tonight.

winds gradually diminish through sunday as low pressure exits 
into northern quebec. a weak low around 30.0 inches in southern 
quebec will drag a cold front southward across the lake,
bringing northwest winds late sunday night into monday morning.
winds intensify and turn north as strong high pressure around 
30.6 inches moves southeastward across minnesota / wisconsin 
late monday afternoon into monday night. gusts upwards of 30 kt 
expected, but just shy of gale force. 

light and variable winds for the daytime hours of tuesday as 
the aforementioned high pressure weakens and crosses the lake.
as it drifts further east and low pressure tracks into the 
northern plains, a period of southerly gales is possible mid 
week.


lmz261-362-364-366-563-565-567-868-050315-
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-
254 pm cdt sat apr 4 2026

sheboygan wi to pentwater mi north...

.tonight...southwest winds to 30 kt becoming west late. a few 
gusts to gale force possible. waves 4 to 6 ft occasionally to 8 ft
building to 7 to 10 ft occasionally to 13 ft. 
.sunday...northwest winds to 30 kt becoming west 15 to 25 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 3 to 5 ft. 
.sunday night...west winds 10 to 20 kt. chance of rain showers in
the evening. waves 2 to 4 ft. 
.monday...northwest winds 10 to 20 kt increasing to 30 kt in the
afternoon. chance of snow showers in the afternoon. waves 3 to
5 ft building to 5 to 8 ft occasionally to 10 ft. 
.monday night...north winds to 30 kt. a few gusts to gale force 
possible. freezing spray in the evening. waves 7 to 10 ft 
occasionally to 13 ft. 
.tuesday...northwest winds 10 to 15 kt backing to southwest.
waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to 3 ft. 
.tuesday night...south winds 10 to 20 kt increasing to 30 kt.
waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. 
.wednesday...south gales to 35 kt. chance of rain and snow
showers. waves 10 to 14 ft occasionally to 18 ft building to
12 to 16 ft occasionally to 21 ft. 
.thursday...west gales to 35 kt becoming northwest 15 to 25 kt.
chance of rain showers. waves 10 to 14 ft occasionally to 18 ft
subsiding to 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 041954
glflm 
expires:202604050315;;834896

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
254 pm cdt sat apr 4 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...

winds will continue to veer southwest and accelerate this
afternoon as low pressure around 29.6 inches crosses northern 
portions of the lake. as low pressure exits into ontario and 
deepens to 29.3 inches, expect winds to become due westerly and 
gust to around 30 kt through tonight.

winds gradually diminish through sunday as low pressure exits 
into northern quebec. a weak low around 30.0 inches in southern 
quebec will drag a cold front southward across the lake,
bringing northwest winds late sunday night into monday morning.
winds intensify and turn north as strong high pressure around 
30.6 inches moves southeastward across minnesota / wisconsin 
late monday afternoon into monday night. gusts upwards of 30 kt 
expected, but just shy of gale force. 

light and variable winds for the daytime hours of tuesday as 
the aforementioned high pressure weakens and crosses the lake.
as it drifts further east and low pressure tracks into the 
northern plains, a period of southerly gales is possible mid 
week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-050315-
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-
254 pm cdt sat apr 4 2026

sheboygan wi to pentwater mi south...

.tonight...west winds to 30 kt. waves 4 to 6 ft occasionally to
8 ft building to 7 to 10 ft occasionally to 13 ft. 
.sunday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 8 to 11 ft occasionally to 14 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.sunday night...southwest winds 10 to 15 kt becoming northwest
10 to 20 kt. chance of rain showers. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.monday...northwest winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 4 to 6 ft occasionally to 8 ft building to 6 to
9 ft occasionally to 12 ft. 
.monday night...north winds to 30 kt. waves 8 to 11 ft
occasionally to 14 ft. 
.tuesday...north winds 10 to 20 kt becoming northeast 5 to 10 kt
in the afternoon. waves 5 to 8 ft occasionally to 10 ft subsiding
to 3 to 5 ft. 
.tuesday night...southeast winds 10 to 20 kt increasing to 30 kt.
waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. 
.wednesday...south gales to 35 kt. waves 10 to 14 ft occasionally
to 18 ft. 
.thursday...southwest winds to 30 kt becoming northwest 10 to
20 kt. chance of rain showers. waves 8 to 12 ft occasionally to
16 ft subsiding to 5 to 8 ft occasionally to 10 ft.  

$$