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fzus63 klot 301346
glflm 
998 

open lake forecast for lake michigan
national weather service chicago/romeoville il
846 am cdt sun apr 30 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 southeastern kansas 
will track slowly north to iowa by tonight...deepening to 29.3 
inches along the way. the low will then continue northeast into 
western quebec by tuesday afternoon. weak high pressure of 30.0 
inches will develop over the central plains in the wake of this 
low, then strengthen to 30.3 inches as it moves northeast to lake 
michigan by wednesday afternoon.

lmz261-362-364-366-563-565-302145-
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-
846 am cdt sun apr 30 2017

two rivers wi to manistee mi north...

...gale warning in effect from 3 pm cdt this afternoon through
late tonight...

.rest of today...east winds to 30 kt becoming northeast gales to
35 kt late in the afternoon. chance of rain showers this 
morning...then rain showers this afternoon. waves 4 to 6 ft 
occasionally to 8 ft building to 6 to 9 ft occasionally to 11 ft. 
.tonight...northeast gales to 35 kt becoming east late. rain 
showers and slight chance of thunderstorms. waves 7 to 10 ft 
occasionally to 13 ft. 
.monday...southeast winds to 30 kt becoming south. chance of rain
showers. waves subsiding to 4 to 6 ft occasionally to 8 ft.
.monday night...south winds to 30 kt becoming southwest. rain
showers likely in the evening...then chance of rain showers
overnight. waves 4 to 7 ft occasionally to 9 ft. 
.tuesday...west winds to 30 kt becoming northwest 15 to 25 kt.
chance of rain showers in the morning. waves 4 to 7 ft
occasionally to 9 ft. 
.tuesday night...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft. 
.wednesday...northwest winds 10 to 15 kt backing to southwest.
waves 1 to 2 ft. 
.thursday...south winds 5 to 10 kt backing to north. waves 1 ft
or less.  

$$
fzus63 klot 301346
glflm 

lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-302145-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from two rivers to sheboygan wi 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 pentwater to manistee mi 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-
846 am cdt sun apr 30 2017

two rivers wi to manistee mi south...

.rest of today...northeast winds to 30 kt becoming east this
afternoon. rain showers this morning... then rain showers and 
slight chance of thunderstorms this afternoon. waves 6 to 9 ft 
occasionally to 11 ft. 
.tonight...east winds to 30 kt veering to south 20 to 25 kt by
overnight. rain showers with a chance of thunderstorms in the 
evening...then rain showers likely with slight chance of 
thunderstorms overnight. waves 5 to 8 ft occasionally to 10 ft. 
.monday...south winds 15 to 25 kt becoming southwest to 30 kt by
early afternoon. chance of rain showers. waves 4 to 7 ft 
occasionally to 9 ft building to 5 to 8 ft occasionally to 10 ft. 
.monday night...southwest gales to 35 kt becoming west. chance of
rain showers. waves 6 to 9 ft occasionally to 11 ft. 
.tuesday...west gales to 35 kt diminishing to 30 kt. waves 6 to
9 ft occasionally to 11 ft. 
.tuesday night...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 3 to 5 ft occasionally to 7 ft subsiding to 1 to
3 ft. 
.wednesday...north winds 10 to 15 kt. waves 1 to 2 ft. 
.thursday...northeast winds 10 to 20 kt becoming north. waves
1 to 3 ft.  

$$

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