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fzus63 kdtx 182044
glflh 
538 

open lake forecast for lake huron
national weather service detroit/pontiac mi
344 pm est wed jan 18 2017

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure...30.20 inches... situated over the ohio
valley...will continue to influence the great lakes region
throughout both wednesday and thursday. low pressure...29.60
inches...will then push over michigan by friday morning...bringing
the likely chance for rain showers. throughout the weekend... low
pressure over the northern central plains and high pressure situated
overthe western atlantic will shift winds s/se on
saturday...ushering warmer air into the region.

lhz361-190915-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
344 pm est wed jan 18 2017

.tonight...west winds 10 to 15 knots becoming light and variable
overnight. waves 1 to 3 feet. 
.thursday...light and variable winds becoming southeast 5 to
10 knots late. waves 2 feet or less. 
.thursday night...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.friday...east winds 5 to 10 knots increasing to 10 to 15 knots
by mid afternoon. a chance of snow and sleet late. waves 2 feet
or less. 
.friday night...east winds 5 to 10 knots. a chance of freezing
rain late in the evening. waves 2 feet or less. 
.saturday...east winds 5 to 10 knots increasing to 10 to 15 knots
after midnight. a chance of rain and snow. waves 2 feet or less. 
.sunday...east winds 10 to 15 knots increasing to 15 to 20 knots
by midnight. a chance of snow through early afternoon. a chance
of rain. a chance of snow. waves 1 to 3 feet building to 4 to
6 feet. waves occasionally around 8 feet. 
.monday...east winds 15 to 20 knots becoming northeast 10 to
15 knots late. a chance of snow late. a chance of rain. a chance
of snow mainly before midnight. waves 4 to 6 feet. waves
occasionally around 8 feet. 


$$
fzus63 kdtx 182044
glflh 

lhz362-363-190915-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
344 pm est wed jan 18 2017

.tonight...southwest winds 15 to 20 knots decreasing to 5 to
10 knots overnight. waves 3 to 5 feet subsiding to 1 to 3 feet
late. 
.thursday...south winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.friday...east winds 5 to 10 knots. a chance of rain...snow and
sleet in the afternoon. waves 2 feet or less. 
.friday night...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.saturday...east winds 5 to 10 knots. a chance of rain. a chance
of snow after midnight. waves 2 feet or less. 
.sunday...east winds 10 to 15 knots increasing to 15 to 20 knots.
a chance of rain and snow through early afternoon. a chance of
rain late. a chance of snow by midnight. waves 3 to 5 feet
building to 5 to 7 feet late. waves occasionally around 10 feet. 
.monday...east winds 15 to 20 knots becoming northeast 10 to
15 knots by late evening. rain likely and a chance of snow. waves
5 to 7 feet. waves occasionally around 10 feet. 


$$
fzus63 kdtx 182044
glflh 

lhz462>464-190915-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
344 pm est wed jan 18 2017

.tonight...southwest winds 10 to 15 knots becoming west 5 to
10 knots late. patchy fog late. waves 1 to 3 feet building to
2 to 4 feet by late evening...then subsiding to 1 to 3 feet late.
.thursday...south winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.friday...east winds 5 to 10 knots. a chance of freezing rain
early. a chance of rain. a chance of snow and sleet late in the
morning. waves 2 feet or less. 
.friday night...south winds 5 to 10 knots. waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots. a chance of rain.
waves 2 feet or less. 
.sunday...east winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon...then increasing to 15 to 20 knots late
decreasing to 10 to 15 knots by midnight. a chance of rain early.
a chance of rain late. waves 1 to 3 feet building to 3 to 5 feet.
.monday...east winds 10 to 15 knots becoming north 5 to 10 knots
by late evening. a chance of rain late...then rain likely in the
afternoon. a chance of rain and snow after midnight. waves 3 to
5 feet. 

wave heights are for ice free areass.

$$
fzus63 klot 182044
glflm 
627 

open lake forecast for lake michigan
national weather service chicago/romeoville il
244 pm cst wed jan 18 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 height of the highest 1/3 of the waves...along
with the average height of the highest 10 percent of the waves
which will occasionally be encountered.

.synopsis...a 30.2 inch high over the mid mississippi valley will
weaken to 30.1 inches as it reaches the atlantic coast thursday
afternoon. a weak low averaging 29.9 inches will move up the
mississippi river thursday and then dissipate over the lake friday
morning. another low is forecast to form over the plains friday
night and reach minnesota at 29.5 inches saturday night. another
stronger low of 29.3 inches forms over the southern plains
saturday night and deepens to 29.2 inches as it reaches the mid
atlantic coast monday.

lmz261-362-364-366-563-565-567-868-190415-
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-
244 pm cst wed jan 18 2017

sheboygan wi to pentwater mi north...

.tonight...southwest winds to 30 kt diminishing to 10 to 20 kt.
patchy fog. waves 4 to 7 ft occasionally to 9 ft subsiding to 3
to 5 ft occasionally to 7 ft.
.thursday...southwest winds 10 to 20 kt becoming south late in the
afternoon. patchy fog in the morning. waves 2 to 4 ft.
.thursday night...south winds 10 to 15 kt backing to east. chance
of rain overnight. waves 1 to 3 ft. 
.friday...east winds 10 to 15 kt. chance of rain. waves 1 to 2
ft.
.friday night...southeast winds 10 to 15 kt. chance of rain and
light freezing rain in the evening. waves 1 to 2 ft. 
.saturday...southeast winds 10 to 15 kt. chance of rain. waves 1
to 2 ft.
.saturday night...southeast winds 10 to 20 kt. chance of rain.
waves 1 to 2 ft. 
.sunday...east winds 10 to 20 kt becoming northeast. waves 1 to
3 ft. 
.monday...northeast winds 10 to 20 kt. chance of rain and snow.
waves 2 to 4 ft.  

$$
fzus63 klot 182044
glflm 

lmz080-669-671-673-675-777-779-870-872-874-876-878-190415-
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-
244 pm cst wed jan 18 2017

sheboygan wi to pentwater mi south...

.tonight...southwest winds 15 to 25 kt diminishing to 10 to
20 kt. patchy fog this evening...then areas of fog overnight.
waves 3 to 5 ft occasionally to 7 ft subsiding to 2 to 4 ft. 
.thursday...southwest winds 10 to 20 kt becoming south 10 to 15
kt...and then becoming southeast late in the afternoon. patchy
fog in the morning. waves 1 to 3 ft.
.thursday night...southeast winds 10 to 15 kt becoming east 10 to
20 kt. rain likely with a chance of thunderstorms in the
evening...then rain with a chance of thunderstorms overnight.
waves 1 to 3 ft. 
.friday...east winds 10 to 20 kt becoming southeast 10 to 15 kt.
rain likely in the morning. waves 1 to 3 ft. 
.friday night...south winds 10 to 15 kt becoming southeast 10 to
20 kt. chance of rain overnight. waves 1 to 2 ft. 
.saturday...southeast winds 10 to 20 kt. chance of rain in the
morning. areas of fog in the afternoon. waves 1 to 2 ft. 
.saturday night...southeast winds 10 to 20 kt. areas of fog.
chance of rain. waves 1 to 2 ft. 
.sunday...east winds 10 to 15 kt becoming northeast 10 to 20 kt.
waves 1 to 3 ft. 
.monday...northeast winds 10 to 20 kt. chance of rain. waves 2 to
4 ft.  

$$
fzus63 kmqt 182048
glfls 
006 

open lake forecast for lake superior
national weather service marquette mi
348 pm est wed jan 18 2017

.synopsis...high pressure of 30.2 inches over the ohio valley will 
weaken to 30.0 inches as it reaches the east coast thursday evening. 
a 29.8 inch ridge will extend back to the upper great lakes. the 
ridge will drift north on saturday as 29.4 inch low pressure moves 
out over the central plains. a weak inverted trough of 29.8 inches 
will lift north across the northern plains and western great lakes 
saturday and sunday as a 29.3 inch low develops in the lee of the 
rockies and tracks from the southern plains to the northern plains. 
as the low weakens to 29.5 inches over southern manitoba monday 
morning...a 29.7 inch trough will move over the northern great
lakes. 

lsz162-190500-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
348 pm est wed jan 18 2017 /248 pm cst wed jan 18 2017/

.late this afternoon...southwest winds 10 to 20 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.thursday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southwest winds 10 to 20 knots becoming south
5 to 15 knots after midnight. a slight chance of rain after
midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. a chance of rain. waves calm
to 2 feet. 
.friday night...east winds 5 to 15 knots. a chance of rain...
possibly mixed with snow and sleet. waves calm to 2 feet. 
.saturday...east winds 10 to 20 knots. a chance of rain. waves
calm to 2 feet. 
.saturday night...east winds 10 to 20 knots. a chance of rain.
waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots. a chance of rain. waves calm
to 2 feet. 
.monday...east winds 5 to 15 knots increasing to 10 to 20 knots.
a chance of rain. waves calm to 2 feet. 

$$
fzus63 kmqt 182048
glfls 

lsz263-190500-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
348 pm est wed jan 18 2017

.late this afternoon...west winds 10 to 20 knots. waves 3 to
5 feet. 
.tonight...west winds 5 to 15 knots backing southwest after
midnight. waves subsiding to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.friday...south winds 5 to 15 knots backing east in the
afternoon. a chance of rain. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots. a chance of rain. waves
calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots backing east in the
afternoon. a chance of rain. waves calm to 2 feet. 
.saturday night...east winds 10 to 20 knots. a chance of rain.
waves building to 1 to 3 feet. 
.sunday...east winds 5 to 15 knots. a chance of rain. waves
subsiding to calm to 2 feet. 
.monday...east winds 5 to 15 knots becoming northeast 10 to
20 knots. a chance of rain. a chance of snow. waves calm to
2 feet. 

$$
fzus63 kmqt 182048
glfls 

lsz264-190500-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
348 pm est wed jan 18 2017

.late this afternoon...west winds 10 to 20 knots. waves 3 to
6 feet. 
.tonight...west winds 5 to 15 knots backing southwest after
midnight. waves subsiding to calm to 2 feet. 
.thursday...south winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 10 to 20 knots. waves calm to
2 feet. 
.friday...south winds 5 to 15 knots backing east in the
afternoon. a slight chance of rain. waves calm to 2 feet. 
.friday night...southeast winds 10 to 20 knots. a chance of rain.
waves calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots. waves building to
1 to 3 feet. 
.saturday night...southeast winds 15 to 25 knots. a chance of
rain. waves 1 to 3 feet. 
.sunday...southeast winds 10 to 20 knots backing east. a chance
of rain. waves subsiding to calm to 2 feet. 
.monday...east winds 10 to 20 knots. a chance of rain and snow. 
waves calm to 2 feet. 

$$
fzus63 kmqt 182048
glfls 

lsz265-190500-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
348 pm est wed jan 18 2017

.late this afternoon...west winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...west winds 5 to 15 knots backing southwest after
midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots veering southwest in the
afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots backing east in the
afternoon. a slight chance of rain. waves calm to 2 feet. 
.friday night...southeast winds 10 to 20 knots. a chance of rain.
waves calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots. waves calm to 2 feet.
.saturday night...southeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a chance of rain. waves building
to 1 to 3 feet. 
.sunday...east winds 10 to 20 knots. a chance of rain. waves
subsiding to calm to 2 feet. 
.monday...east winds 10 to 20 knots. a chance of rain and snow. 
waves calm to 2 feet. 

$$
fzus63 kmqt 182048
glfls 

lsz266-190500-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
348 pm est wed jan 18 2017

.late this afternoon...west winds 10 to 20 knots. waves 3 to
6 feet. 
.tonight...west winds 5 to 15 knots backing southwest after
midnight. waves subsiding to calm to 2 feet. 
.thursday...south winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...south winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots. a slight chance of rain.
waves calm to 2 feet. 
.friday night...southeast winds 10 to 20 knots. a chance of rain.
waves calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots. waves building to
1 to 3 feet. 
.saturday night...southeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a chance of rain. waves 1 to
3 feet. 
.sunday...east winds 10 to 20 knots. a chance of rain. waves
subsiding to calm to 2 feet. 
.monday...east winds 10 to 20 knots. a chance of rain and snow. 
waves calm to 2 feet. 

$$
fzus63 kmqt 182048
glfls 

lsz267-190500-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
348 pm est wed jan 18 2017

.late this afternoon...southwest winds 10 to 20 knots. waves 2 to
4 feet. 
.tonight...southwest winds 10 to 20 knots becoming south 5 to
15 knots after midnight. patchy fog after midnight. waves
subsiding to calm to 2 feet. 
.thursday...south winds 10 to 20 knots. patchy fog in the
morning. waves calm to 2 feet. 
.thursday night...south winds 10 to 20 knots. waves calm to
2 feet. 
.friday...southeast winds 10 to 20 knots. a slight chance of
rain. waves calm to 2 feet. 
.friday night...southeast winds 10 to 20 knots. a chance of rain.
waves calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots. waves calm to 2 feet.
.saturday night...southeast winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a chance of rain. waves calm to
2 feet. 
.sunday...east winds 10 to 20 knots. a chance of rain. waves calm
to 2 feet. 
.monday...east winds 10 to 20 knots. a chance of rain and snow. 
waves calm to 2 feet. 

$$

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