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fzus63 kdtx 230243
glflh 
607 

open lake forecast for lake huron
national weather service detroit/pontiac mi
943 pm est wed nov 22 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 averaging 30.30 inches will continue to 
build across the ohio valley tonight. the next low pressure system
will move east across the canadian provinces, from alberta to 
ontario at 30.30 inches before reaching the ontario/quebec border
by friday night while deepening to 29.60 inches. strong southwest
wind ahead of this system could produce gales across central lake
huron.

lhz361-230915-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
943 pm est wed nov 22 2017

.rest of tonight...southwest winds 10 to 15 knots increasing to
15 to 20 knots after midnight. a chance of snow showers early in
the morning. waves 2 to 4 feet building to 3 to 5 feet after
midnight. 
.thursday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the afternoon. a chance of snow showers early in the
morning. a chance of showers until late afternoon. waves 3 to
5 feet. 
.thursday night...west winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and early morning...then becoming
southwest 10 to 15 knots after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight. 
.friday...southwest winds 15 to 20 knots. a chance of showers in
the afternoon. waves 4 to 6 feet. waves occasionally around
8 feet. 
.friday night...southwest winds 15 to 20 knots becoming west
20 to 25 knots after midnight. gusts to 30 knots. showers likely
until early morning. waves 5 to 7 feet. waves occasionally around
10 feet. 
.saturday...northwest winds 15 to 20 knots with gusts to 30 knots
decreasing to 10 to 15 knots late in the evening. waves 4 to
6 feet. 
.sunday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then becoming
southwest 10 to 15 knots until early morning. waves 2 to 4 feet
subsiding to 1 to 3 feet until early evening...then building to
2 to 4 feet in the late evening and early morning. waves
occasionally around 8 feet. 
.monday...southwest winds 10 to 15 knots. a chance of showers
after midnight. waves 1 to 3 feet building to 2 to 4 feet until
early morning. 


$$
fzus63 kdtx 230243
glflh 

lhz362-363-230915-
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-
943 pm est wed nov 22 2017

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

.rest of tonight...southwest winds 10 to 15 knots increasing to
15 to 20 knots after midnight. waves 1 to 3 feet building to 4 to
6 feet after midnight. waves occasionally around 8 feet. 
.thursday...southwest winds 15 to 20 knots. a chance of snow
showers early in the morning. a chance of showers until late
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.thursday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots in the late evening and overnight. waves 3 to
5 feet. 
.friday...southwest winds 20 to 25 knots becoming south to
30 knots early in the afternoon. gusts to 35 knot gales. waves
8 to 12 feet building to 10 to 14 feet early in the afternoon.
waves occasionally around 18 feet. 
.friday night...south winds to 30 knots with gusts to 40 knot
gales becoming southwest 15 to 20 knots with gusts to 30 knots.
showers likely until early morning. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.saturday...west winds 15 to 20 knots with gusts to 30 knots
becoming northwest 20 to 25 knots with gusts to 30 knots late in
the afternoon. waves 6 to 9 feet. waves occasionally around
12 feet. 
.sunday...northwest winds 15 to 20 knots becoming west 10 to
15 knots until early evening...then increasing to 15 to 20 knots
in the late evening and early morning. waves 5 to 7 feet
subsiding to 2 to 4 feet until early morning. waves occasionally
around 10 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. waves 4 to 6 feet building to 5 to 7 feet in the late
evening and early morning. waves occasionally around 10 feet. 


$$
fzus63 kdtx 230243
glflh 

lhz462-463-230915-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
943 pm est wed nov 22 2017

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

.rest of tonight...southwest winds 10 to 15 knots increasing to
15 to 20 knots early in the morning. waves 1 to 3 feet building
to 3 to 5 feet after midnight. 
.thursday...southwest winds 15 to 20 knots. a chance of showers
late in the morning. waves 3 to 5 feet. 
.thursday night...southwest winds 15 to 20 knots decreasing to
10 to 15 knots in the late evening and overnight. waves 2 to
4 feet. 
.friday...southwest winds 15 to 20 knots becoming south 20 to
25 knots with gusts to 35 knot gales possible in the afternoon. 
waves 5 to 7 feet building to 6 to 9 feet early in the afternoon. 
waves occasionally around 12 feet. 
.friday night...southwest winds 20 to 25 knots with gusts to
35 knot gales decreasing to 15 to 20 knots after midnight. a
chance of showers. waves 6 to 9 feet. waves occasionally around
12 feet. 
.saturday...northwest winds 15 to 20 knots with gusts to 30 knots
increasing to 20 to 25 knots with gusts to 30 knots late in the
evening. a chance of showers early in the morning. waves 4 to
6 feet building to 6 to 9 feet late in the afternoon. waves
occasionally around 12 feet. 
.sunday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 5 to 7 feet subsiding to 2 to 4 feet until early
morning. waves occasionally around 10 feet. 
.monday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. waves 2 to 4 feet building to 4 to 6 feet until early
morning. waves occasionally around 8 feet. 


$$
fzus63 klot 230236
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-
836 pm cst wed nov 22 2017

sheboygan wi to pentwater mi south...

...gale watch in effect from friday morning through friday
evening...

.rest of tonight...southwest winds 10 to 20 kt increasing to
15 to 25 kt. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft.
.thursday...southwest winds 15 to 25 kt becoming west 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.thursday night...west winds 10 to 20 kt becoming southwest late
in the evening...then increasing to 15 to 25 kt after midnight
increasing to 30 kt late. waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft. 
.friday...southwest gales to 40 kt. waves 7 to 10 ft occasionally
to 13 ft building to 8 to 11 ft occasionally to 14 ft. 
.friday night...west gales to 35 kt becoming northwest to 30 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.saturday...northwest winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft. 
.saturday night...northwest winds to 30 kt diminishing to 15 to
25 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.sunday...northwest winds 10 to 20 kt becoming southwest. waves
2 to 4 ft subsiding to 1 to 3 ft. 
.monday...southwest winds to 30 kt becoming south. waves 5 to
8 ft occasionally to 10 ft.  

$$
fzus63 klot 230236
glflm 
400 

open lake forecast for lake michigan
national weather service chicago/romeoville il
836 pm cst wed nov 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...high pressure of 30.4 inches stretching from the 
eastern lakes to the southern plains this evening will move
southeast to the mid atlantic and gulf coast by friday. meanwhile,
low pressure of 29.0 inches will reach alberta, canada by 
thursday evening, then track east to james bay by friday evening. 
a cold front trailing from this low will move across the lake 
friday night with a 30.1 inch ridge of high pressure building east
in the wake of this cold front. the high will move across the 
western great lakes over the weekend with a 29.2 inch low forecast
to develop over the northern plains sunday night.

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-
836 pm cst wed nov 22 2017

sheboygan wi to pentwater mi north...

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

.rest of tonight...southwest winds 15 to 25 kt increasing to
30 kt. slight chance of snow showers. waves 2 to 4 ft building to
4 to 7 ft occasionally to 9 ft. 
.thursday...west winds 15 to 25 kt diminishing to 10 to 20 kt.
chance of snow showers, mainly in the morning. waves 4 to 6 ft 
occasionally to 8 ft subsiding to 2 to 4 ft. 
.thursday night...west winds 10 to 20 kt becoming southwest late
in the evening...then increasing to 30 kt after midnight
increasing to gales to 40 kt late. waves 1 to 3 ft building to
6 to 9 ft occasionally to 12 ft. 
.friday...southwest gales to 45 kt. chance of rain showers in the
afternoon. waves 10 to 14 ft occasionally to 18 ft. 
.friday night...west gales to 40 kt becoming northwest to 30 kt
overnight. chance of rain showers in the evening. waves 8 to
12 ft occasionally to 16 ft subsiding to 5 to 8 ft occasionally
to 10 ft. 
.saturday...northwest winds to 30 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.saturday night...northwest winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft. 
.monday...southwest winds to 30 kt becoming south. waves 4 to
7 ft occasionally to 9 ft building to 5 to 8 ft occasionally to
10 ft.  

$$
fzus63 kmqt 230245
glfls 

lsz266-231045-
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-
945 pm est wed nov 22 2017

.rest of tonight...southwest winds 20 to 30 knots veering west by
midnight, then diminishing to 15 to 25 knots late. isolated snow
showers. waves 3 to 6 feet occasionally to 8 feet building to
5 to 8 feet occasionally to 10 feet. 
.thursday...west winds 15 to 25 knots becoming northwest 20 to
30 knots by late morning, then diminishing to 10 to 20 knots by 
mid afternoon. isolated snow showers in the morning. waves 
subsiding to 3 to 5 feet occasionally to 7 feet. 
.thursday night...west winds 10 to 20 knots backing south 15 to 
25 knots by midnight, then increasing to gales to 35 knots late. a
slight chance of rain and snow showers. waves subsiding to 1 to 3
feet, then building to 4 to 7 feet occasionally to 9 feet.
.friday...southwest winds 20 to 30 knots. a chance of rain
showers in the morning, then rain showers likely in the
afternoon. waves building to 4 to 8 feet occasionally to 10 feet.
.friday night...west gales to 35 knots veering northwest after
midnight. a chance of rain and snow showers. waves building to 8 
to 12 feet occasionally to 15 feet. 
.saturday...northwest gales to 35 knots. a chance of rain and snow
showers. waves subsiding to 6 to 9 feet occasionally to 11 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. snow showers. waves subsiding to 2
to 4 feet. 
.sunday...southwest winds 15 to 25 knots. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.monday...south winds 15 to 25 knots veering west. a chance of
rain showers. waves subsiding to 1 to 3 feet, then building to
3 to 5 feet occasionally to 7 feet. 

$$
fzus63 kmqt 230245
glfls 

lsz267-231045-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
945 pm est wed nov 22 2017

.rest of tonight...southwest winds 20 to 30 knots veering west
late. isolated snow showers after midnight. waves 3 to 6 feet
occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots becoming northwest 15 to
25 knots by mid afternoon. scattered snow showers, possibly mixed
with rain. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday night...northwest winds 10 to 20 knots backing south by
midnight, then increasing to 20 to 30 knots late. a slight chance
of rain and snow showers. waves subsiding to 1 to 3 feet, then 
building to 4 to 7 feet occasionally to 9 feet. 
.friday...south gales to 35 knots becoming southwest 20 to
30 knots in the afternoon. rain showers. waves building to 5 to 8
feet occasionally to 10 feet, then subsiding to 3 to 6 feet 
occasionally to 8 feet. 
.friday night...west gales to 35 knots backing northwest after
midnight. rain showers possibly mixed with snow. waves building 
to 9 to 12 feet occasionally to 15 feet.
.saturday...northwest gales to 35 knots. rain and snow showers. 
waves subsiding to 6 to 9 feet occasionally to 11 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. snow showers. waves subsiding to 2
to 4 feet. 
.sunday...southwest winds 15 to 25 knots. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.monday...south winds 15 to 25 knots. a chance of rain showers.
waves subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 

$$
fzus63 kmqt 230245
glfls 
003 

open lake forecast for lake superior
national weather service marquette mi
945 pm est wed nov 22 2017

for waters beyond five nautical miles of shore on lake superior

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...a 30.4 high over the ohio valley will move east as a 
weakening 29.9 low moves through the great lakes overnight. 
thursday, a weak high of 30.1 over northern ontario will extend 
southward before yet another low of 29.9 inches glances the upper 
great lakes on friday. the region will then be dominated by a 
strengthening high of 30.1 inches passing through the central 
united states saturday and sunday. a developing low pressure 
system of 29.1 inches will then impact the region late monday. 

lsz162-231045-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
945 pm est wed nov 22 2017 /845 pm cst wed nov 22 2017/

.rest of tonight...southwest winds 15 to 25 knots veering west by
midnight. scattered snow showers late. waves 3 to 6 feet 
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.thursday...west winds 10 to 20 knots diminishing to 5 to
15 knots and backing southwest by mid afternoon. waves subsiding 
to calm to 2 feet.
.thursday night...southwest winds 10 to 20 knots increasing to
20 to 30 knots. waves building to 3 to 6 feet occasionally to
8 feet. 
.friday...southwest winds 15 to 25 knots becoming west 20 to
30 knots in the afternoon. a chance of rain showers. waves 3 to
6 feet occasionally to 8 feet. 
.friday night...west winds 20 to 30 knots. waves 3 to 6 feet
occasionally to 8 feet. 
.saturday...northwest winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 2 to 4 feet. 
.saturday night...northwest winds 10 to 20 knots backing west
after midnight. waves subsiding to calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.monday...south winds 10 to 20 knots veering northwest. waves
building to 1 to 3 feet. 

$$
fzus63 kmqt 230245
glfls 

lsz263-231045-
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-
945 pm est wed nov 22 2017

.rest of tonight...west winds 20 to 30 knots diminishing to 10 to
20 knots late. isolated snow showers. waves 3 to 6 feet 
occasionally to 8 feet building to 4 to 7 feet occasionally to 9 
feet. 
.thursday...west winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots increasing to
20 to 30 knots. a slight chance of rain and snow showers in the
evening. waves building to 3 to 6 feet occasionally to 8 feet. 
.friday...southwest winds 20 to 30 knots veering west in the
afternoon. a chance of rain showers. waves building to 6 to 9 
feet occasionally to 11 feet. 
.friday night...west gales to 35 knots becoming northwest 20 to
30 knots after midnight. waves subsiding to 4 to 7 feet
occasionally to 9 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots in the afternoon. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.saturday night...northwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...southwest winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.monday...south winds 10 to 20 knots veering northwest. a chance
of rain and snow showers. waves building to 1 to 3 feet, then 
subsiding to calm to 2 feet. 

$$
fzus63 kmqt 230245
glfls 

lsz264-231045-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
945 pm est wed nov 22 2017

.rest of tonight...southwest winds 15 to 25 knots becoming northwest
20 to 30 knots late. scattered snow showers. waves 4 to 8 feet 
occasionally to 10 feet.
.thursday...northwest winds 15 to 25 knots diminishing to 5 to
15 knots and backing southwest late. isolated snow showers in the
morning. waves subsiding to 1 to 3 feet. 
.thursday night...southwest winds 5 to 15 knots becoming south
15 to 25 knots by midnight, then becoming southwest 20 to
30 knots late. a slight chance of rain and snow showers. waves
subsiding to calm to 2 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.friday...southwest winds 20 to 30 knots becoming west gales to
35 knots in the afternoon. a chance of rain showers. waves 
building to 6 to 9 feet occasionally to 11 feet. 
.friday night...west gales to 35 knots becoming northwest 20 to
30 knots after midnight. a chance of rain showers. waves 6 to
9 feet occasionally to 11 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.sunday...southwest winds 10 to 20 knots. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.monday...south winds 10 to 20 knots veering northwest. a chance
of rain showers. a chance of snow showers. waves building to 2 to
4 feet. 

$$
fzus63 kmqt 230245
glfls 

lsz265-231045-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
945 pm est wed nov 22 2017

.rest of tonight...southwest winds 15 to 25 knots veering west by
midnight. isolated snow showers after midnight. waves 2 to 4 feet
building to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 15 to 25 knots becoming northwest 10 to
20 knots by mid afternoon. isolated snow showers in the morning.
waves subsiding to 1 to 3 feet. 
.thursday night...west winds 10 to 20 knots becoming south 15 to
25 knots by midnight, then increasing to 20 to 30 knots late. a
slight chance of rain and snow showers in the evening. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 
.friday...southwest winds 20 to 30 knots veering west in the
afternoon. a chance of rain showers. waves building to 3 to 5 
feet occasionally to 7 feet. 
.friday night...west gales to 35 knots veering northwest after
midnight. a chance of rain showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.saturday...northwest gales to 35 knots diminishing to 20 to
30 knots in the afternoon. snow showers. waves subsiding to 3 to 
6 feet occasionally to 8 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.sunday...southwest winds 15 to 25 knots. waves subsiding to calm
to 2 feet, then building to 1 to 3 feet. 
.monday...south winds 15 to 25 knots veering west. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$

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