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fzus63 kmkx 220204
glflm 
expires:202104220945;;921936

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
904 pm cdt wed apr 21 2021

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... 

weak low pressure of 30.1 inches over the southern half of the 
lake shifts east of the area by thursday morning. northerly winds
shift to the southwest to west this tonight and continue into 
thursday. winds pick up from the southwest thursday night becoming
more south to southwest friday as high pressure over the ohio 
valley shifts to the east. 

&&


lmz261-362-364-366-563-565-567-868-220945-
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-
904 pm cdt wed apr 21 2021

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds 10 to 20 kt becoming west.
slight chance of snow showers through early evening. waves 1 to
3 ft. 
.thursday...west winds 10 to 20 kt becoming southwest 15 to
25 kt. waves 2 to 4 ft building to 3 to 5 ft. 
.thursday night...southwest winds 15 to 25 kt diminishing to
10 to 20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.friday...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.friday night...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft. 
.saturday...south winds 5 to 10 kt veering to northwest. waves
1 to 3 ft. 
.saturday night...north winds 15 to 25 kt increasing to 30 kt.
waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft. 
.sunday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.monday...southeast winds 10 to 20 kt. waves 3 to 5 ft.  

$$
fzus63 kmkx 220204
glflm 
expires:202104220945;;921937

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
904 pm cdt wed apr 21 2021

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... 

weak low pressure of 30.1 inches over the southern half of the 
lake shifts east of the area by thursday morning. northerly winds
shift to the southwest to west this tonight and continue into 
thursday. winds pick up from the southwest thursday night becoming
more south to southwest friday as high pressure over the ohio 
valley shifts to the east. 

&&


lmz080-669-671-673-675-777-779-870-872-874-876-878-220945-
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-
904 pm cdt wed apr 21 2021

sheboygan wi to pentwater mi south...

.rest of tonight...southwest winds 10 to 20 kt becoming west.
slight chance of snow showers through early evening. waves 1 to
3 ft. 
.thursday...west winds 10 to 20 kt backing to south. waves 2 to
4 ft. 
.thursday night...south winds 10 to 20 kt becoming southwest.
waves 2 to 4 ft. 
.friday...southwest winds 10 to 20 kt becoming south. waves 2 to
4 ft. 
.friday night...south winds 10 to 15 kt diminishing to 5 to
10 kt. chance of rain showers overnight. waves 1 to 3 ft. 
.saturday...east winds 5 to 10 kt becoming north. chance of rain
showers in the morning. waves 1 to 2 ft. 
.saturday night...north winds 10 to 20 kt increasing to 30 kt.
waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft. 
.sunday...north winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.monday...southeast winds 10 to 20 kt. waves 3 to 5 ft.  

$$

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