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fzus63 klot 230238
glflm 
596 

open lake forecast for lake michigan
national weather service chicago/romeoville il
838 pm cst wed feb 22 2017

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 of 29.5 inches over wisconsin will 
track northeast across northern lake michigan overnight tonight. 
a trailing cold front will then push south down the lake 
late tonight and early tomorrow. strong low pressure around 29.3 
inches will move northeast over the lower great lakes friday night
into early saturday. ridging with a central pressure of 30.2 
inches will move across the lake late saturday into early sunday.

lmz261-362-364-366-563-565-567-868-231030-
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-
838 pm cst wed feb 22 2017

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 3 am cst thursday...
...gale watch in effect from late thursday night through friday
afternoon...

.rest of tonight...west winds 10 to 20 kt veering to north 15 to
25 kt. areas of fog through late tonight...then patchy fog 
in the early morning hours. chance of rain through early 
evening,...then slight chance of rain overnight. waves 3 to 5 ft 
occasionally to 7 ft. 
.thursday...north winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft. 
.thursday night...northeast winds to 30 kt increasing to gales to
35 kt. chance of snow showers in the evening...then snow showers,
rain showers and sleet overnight. waves 4 to 7 ft occasionally to
9 ft building to 5 to 8 ft occasionally to 10 ft.
.friday...east gales to 40 kt diminishing to 30 kt in the
afternoon. rain showers and sleet in the morning...then rain 
showers, freezing rain and sleet in the afternoon. waves 6 to 9 
ft occasionally to 11 ft. 
.friday night...northeast winds 15 to 25 kt becoming north to 30 
kt. rain likely with freezing rain in the evening,...then rain, 
snow and freezing rain likely overnight. waves 4 to 6 ft 
occasionally to 8 ft.
.saturday...northwest winds to 30 kt increasing to gales to 35 
kt. snow in the morning...then snow likely in the afternoon. 
waves 4 to 7 ft occasionally to 9 ft. 
.saturday night...northwest winds to 30 kt becoming west. chance
of snow. waves 5 to 8 ft occasionally to 10 ft. 
.sunday...west winds 15 to 25 kt becoming southwest to 30 kt.
chance of snow. waves 3 to 5 ft occasionally to 7 ft. 
.monday...northwest winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 2 to 4 ft. 

$$
fzus63 klot 230238
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-231030-
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-
838 pm cst wed feb 22 2017

sheboygan wi to pentwater mi south...

...gale watch in effect from late thursday night through friday
morning...

.rest of tonight...south winds 15 to 25 kt veering to northwest
10 to 20 kt. slight chance of rain through early evening. patchy
fog. waves 3 to 5 ft occasionally to 7 ft subsiding to 2 to 4 ft.

.thursday...north winds 15 to 25 kt increasing to 30 kt. patchy
fog in the morning. waves building to 4 to 6 ft occasionally to 8
ft.
.thursday night...northeast winds to 30 kt becoming east gales to
35 kt. rain showers. waves 4 to 7 ft occasionally to 9 ft
building to 6 to 9 ft occasionally to 11 ft. 
.friday...southeast gales to 35 kt diminishing to 30 kt. rain
showers with a chance of thunderstorms. waves 6 to 9 ft
occasionally to 11 ft.
.friday night...southwest winds 10 to 20 kt becoming west to 30 
kt overnight. chance of rain in the evening...then chance of rain
and snow overnight. waves 3 to 5 ft occasionally to 7 ft. 
.saturday...west gales to 35 kt becoming northwest gales to 40 
kt. snow likely in the morning...then chance of snow in the 
afternoon. waves 6 to 9 ft occasionally to 11 ft.
.saturday night...northwest gales to 35 kt becoming west to 30 
kt. chance of snow. waves 6 to 9 ft occasionally to 11 ft. 
.sunday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 3 to 5 ft occasionally to 7 ft. 
.monday...northwest winds 10 to 20 kt becoming northeast 10 to
15 kt. waves 2 to 4 ft. 

$$

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