fzus63 kmkx 010801
glflm 
expires:202505011530;;759929

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
301 am cdt thu may 1 2025

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 29.6 inches will slide across northern
illinois this morning and across central lower michigan this
afternoon. another weaker low pressure system will cross the 
upper great lakes on friday, and a subtle cold front will also 
drop through. high pressure around 30.1 inches will then return 
for the weekend. 

easterly winds will become southerly over the southern third of 
the lake this morning. otherwise expect northerly winds through 
early next week.


lmz261-362-364-366-563-565-567-868-011530-
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-
301 am cdt thu may 1 2025

sheboygan wi to pentwater mi north...

.today...east winds 10 to 20 kt increasing to 15 to 25 kt late
this morning, then becoming northeast early this afternoon and
increasing to 30 kt late. rain showers. waves 3 to 5 ft building
to 4 to 6 ft occasionally to 8 ft. 
.tonight...north winds to 30 kt diminishing to 10 to 20 kt late
in the evening, then becoming north 10 to 20 kt after midnight
diminishing to 10 to 15 kt late. slight chance of rain showers.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.friday...north winds 10 to 15 kt becoming northwest. chance of
rain showers. waves 1 to 3 ft. 
.friday night...north winds 10 to 20 kt. waves 1 to 3 ft. 
.saturday...north winds 10 to 20 kt becoming northwest. waves
1 to 3 ft. 
.saturday night...west winds 10 to 15 kt becoming northwest 5 to
10 kt. waves 1 to 2 ft. 
.sunday...north winds 10 to 15 kt becoming northeast. waves 1 to
2 ft. 
.monday...east winds 10 to 20 kt becoming northeast. waves 1 to
3 ft.  

$$

fzus63 kmkx 010801
glflm 
expires:202505011530;;759930

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
301 am cdt thu may 1 2025

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 29.6 inches will slide across northern
illinois this morning and across central lower michigan this
afternoon. another weaker low pressure system will cross the 
upper great lakes on friday, and a subtle cold front will also 
drop through. high pressure around 30.1 inches will then return 
for the weekend. 

easterly winds will become southerly over the southern third of 
the lake this morning. otherwise expect northerly winds through 
early next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-011530-
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-
301 am cdt thu may 1 2025

sheboygan wi to pentwater mi south...

.today...east winds 15 to 25 kt backing to northwest. rain
showers and slight chance of thunderstorms this morning, then
chance of rain showers and slight chance of thunderstorms this
afternoon. waves 4 to 6 ft occasionally to 8 ft. 
.tonight...northwest winds 10 to 20 kt veering to northeast 10 to
15 kt. slight chance of rain showers in the evening, then chance
of rain showers overnight. waves 3 to 5 ft subsiding to 1 to
3 ft. 
.friday...north winds 10 to 15 kt. chance of rain showers in the
morning. waves 1 to 3 ft. 
.friday night...north winds 10 to 15 kt. waves 1 to 3 ft. 
.saturday...north winds 10 to 20 kt. waves 3 to 5 ft. 
.saturday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.sunday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.monday...northeast winds 10 to 15 kt. chance of showers. waves
1 to 3 ft.  

$$