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fzus61 kbuf 200842
glflo 
199 

open lake forecast for lake ontario
national weather service buffalo ny
342 am est mon nov 20 2017

for waters beyond five nautical miles of shore on lake ontario

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...expansive high pressure over the deep south will slide 
off the atlantic coastline tonight. a 29.1 inch low just south of
james bay on tuesday will push a cold front across the lake tuesday
night...then high pressure over the plains states will build across
the ohio valley and lower great lakes wednesday and thursday.

loz062-201600-
lake ontario open waters from the niagara river to hamlin beach-
342 am est mon nov 20 2017

.today...west winds 20 to 25 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.tonight...southwest winds 15 to 25 knots. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.tuesday...southwest winds to 30 knots. a chance of showers in
the afternoon. waves 5 to 8 feet. waves occasionally around
10 feet. 
.tuesday night...southwest winds 15 to 25 knots becoming west.
rain showers likely. waves 3 to 6 feet. 
.wednesday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.thursday...southwest winds 15 to 20 knots becoming west. a
chance of snow showers thursday night. waves 2 to 4 feet building
to 3 to 5 feet. 
.friday...west winds around 10 knots becoming southwest and
increasing to 15 to 25 knots. a chance of rain showers friday
night. waves 2 to 4 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 

$$
fzus61 kbuf 200842
glflo 

loz063>065-201600-
lake ontario open waters from hamlin beach to the saint lawrence
river-
342 am est mon nov 20 2017

.today...northwest winds to 30 knots becoming west 15 to
25 knots. lake effect snow this morning, then a chance of lake
effect snow showers early this afternoon. lake effect snow
showers likely late. waves 5 to 9 feet. waves occasionally around
11 feet. 
.tonight...southwest winds 15 to 25 knots. lake effect snow
showers likely early, then a chance of snow showers late in the
evening. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.tuesday...southwest winds 15 to 25 knots. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.tuesday night...southwest winds 15 to 25 knots becoming west.
rain showers likely. waves 3 to 6 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of snow showers during the day. waves 3 to
6 feet subsiding to 2 to 4 feet. 
.thursday...southwest winds 15 to 20 knots becoming west. a
chance of rain and snow showers during the day, then snow and
rain showers likely thursday night. waves 2 to 4 feet building to
3 to 6 feet. 
.friday...northwest winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. a chance of rain and snow showers
during the day, then a chance of rain showers friday night. waves
3 to 5 feet building to 3 to 6 feet. 

$$
fzus61 kcle 200915
glfle 
223 

open lake forecast for lake erie
national weather service cleveland oh
415 am est mon nov 20 2017

for waters beyond five nautical miles of shore on lake erie

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 30.40 inches will slide east across the
ohio valley today and move off the east coast tuesday. low 
pressure 29.30 inches will track across james bay late tuesday, 
forcing a cold front across lake erie. a large area of high 
pressure 30.30 inches will move from the middle mississippi valley
on wednesday to the ohio valley by thursday, and then off the
mid-atlantic coast by friday.

lez162>164-201515-
lake erie open waters from maumee bay to reno beach oh-
lake erie open waters from reno beach to the islands oh-
lake erie open waters from the islands to vermilion oh-
415 am est mon nov 20 2017

.today...southwest winds 15 to 20 knots. waves 2 to 4 feet. 
.tonight...southwest winds to 30 knots. waves 3 to 6 feet. 
.tuesday...southwest winds to 30 knots becoming west. a chance of
rain showers in the afternoon. waves 3 to 5 feet. 
.tuesday night...west winds 15 to 20 knots becoming northwest. a
chance of rain showers in the evening. waves 3 to 5 feet. 
.wednesday...northwest winds 5 to 15 knots becoming southwest.
waves 2 to 4 feet subsiding to 1 foot or less. 
.thursday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.friday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. a chance of rain showers friday night. waves 1 to
3 feet building to 2 to 4 feet. 

$$
fzus61 kcle 200915
glfle 

lez061-165>169-201515-
lake erie open waters from ripley to buffalo ny-
lake erie open waters from vermilion to avon point oh-
lake erie open waters from avon point to willowick oh-
lake erie open waters from willowick to geneva-on-the-lake oh-
lake erie open waters from geneva-on-the-lake to conneaut oh-
lake erie open waters from conneaut oh to ripley ny-
415 am est mon nov 20 2017

.today...west winds to 30 knots becoming southwest. a slight
chance of snow showers early. waves 5 to 9 feet. waves
occasionally around 11 feet. 
.tonight...southwest winds to 30 knots. waves 6 to 10 feet
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.tuesday...southwest winds to 30 knots. a chance of showers in
the afternoon. waves 5 to 9 feet. waves occasionally around
11 feet. 
.tuesday night...west winds 15 to 25 knots becoming northwest.
rain showers likely in the evening, then a chance of rain showers
overnight. waves 5 to 9 feet. waves occasionally around 11 feet. 
.wednesday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 4 to 7 feet subsiding to 1 to 2 feet. waves
occasionally around 9 feet. 
.thursday...southwest winds 15 to 20 knots becoming west. waves
1 to 3 feet building to 3 to 5 feet. 
.friday...west winds around 10 knots becoming southwest and
increasing to 15 to 25 knots. a chance of rain showers friday
night. waves 2 to 4 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 

$$
fzus63 kdtx 200740
glflh 

lhz463-464-202115-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
240 am est mon nov 20 2017

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


$$
fzus63 kdtx 200740
glflh 
038 

open lake forecast for lake huron
national weather service detroit/pontiac mi
240 am est mon nov 20 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 system, 30.10 inches, will slide east 
through the ohio valley today, with an extension of the ridge 
northward across the great lakes region. the next low pressure 
system, 29.20 inches, will move east along the southern tier of 
canada to just north of lake superior late tonight. southwest winds 
will increase between the departing high and the approaching low. 
the attendant cold front will clear the central great lakes region 
tuesday, ushering in another round of brisk northwesterly flow. high 
pressure will regain a foothold on wednesday.

lhz361-202115-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
240 am est mon nov 20 2017

...gale warning in effect from tuesday morning through tuesday
evening...

.today...west winds 10 to 15 knots becoming south 5 to 10 knots
in the late morning and afternoon. waves 3 to 5 feet subsiding to
1 to 3 feet in the afternoon. 
.tonight...south winds 10 to 15 knots becoming southwest 15 to
20 knots after midnight. waves 2 to 4 feet building to 4 to
6 feet in the late evening and overnight. waves occasionally
around 8 feet. 
.tuesday...southwest winds 15 to 20 knots with gusts to 30 knots
becoming west 20 to 25 knots with gusts to 35 knot gales early in
the afternoon. a chance of showers in the late morning and
afternoon. a chance of snow showers in the afternoon. waves 6 to
9 feet. waves occasionally around 12 feet. 
.tuesday night...west winds to 30 knots with gusts to 35 knot
gales becoming northwest 10 to 15 knots. a chance of snow showers
and showers early in the evening. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.wednesday...west winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon...then building to
2 to 4 feet late in the evening. 
.thursday...west winds 15 to 20 knots becoming northwest 5 to
10 knots in the late evening and early morning. a chance of rain
and snow showers in the afternoon. waves 3 to 5 feet. 
.friday...west winds 5 to 10 knots becoming southwest 15 to
20 knots. a chance of rain and snow showers in the afternoon.
showers until early morning. snow showers late in the evening.
waves 2 feet or less building to 4 to 6 feet. waves occasionally
around 8 feet. 


$$
fzus63 kdtx 200740
glfsc 
252 

lake st clair forecast
national weather service detroit/pontiac mi
240 am est mon nov 20 2017

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 system, 30.10 inches, will slide east 
through the ohio valley today, with an extension of the ridge 
northward across the great lakes region. the next low pressure 
system, 29.20 inches, will move east along the southern tier of 
canada to just north of lake superior late tonight. southwest winds 
will increase between the departing high and the approaching low. 
the attendant cold front will clear the central great lakes region 
tuesday, ushering in another round of brisk northwesterly flow. high 
pressure will regain a foothold on wednesday.

lcz460-202115-
lake st clair-
240 am est mon nov 20 2017

.today...southwest winds 15 to 20 knots. partly sunny until late
afternoon then clearing. waves 1 to 3 feet.
.tonight...southwest winds 20 to 25 knots. clear. waves 2 to 4 feet.
.tuesday...southwest winds 20 to 25 knots diminishing to 15 to 20
knots late in the afternoon. partly sunny until late afternoon
becoming cloudy. a chance of light showers late in the afternoon.
waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon.
.tuesday night...northwest winds 15 to 20 knots. mostly cloudy with
a chance of light showers early in the evening...then partly cloudy
in the late evening and overnight. waves 1 to 3 feet.
.wednesday...northwest winds 10 to 15 knots becoming light and
variable. mostly clear. waves 2 feet or less.
.thursday...west winds 10 to 15 knots. partly cloudy. waves 2 feet
or less.
.friday...southwest winds 15 to 20 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$
fzus63 kdtx 200740
glflh 

lhz362-202115-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
240 am est mon nov 20 2017

...gale warning in effect from this evening through late tuesday
night...

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


$$
fzus63 kdtx 200740
glflh 

lhz363-202115-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
240 am est mon nov 20 2017

...gale warning in effect from this evening through tuesday
morning...

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


$$
fzus63 kdtx 200740
glflh 

lhz462-202115-
lake huron from port austin to harbor beach beyond 5nm off shore-
240 am est mon nov 20 2017

...gale warning in effect from this evening through late
tonight...

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


$$

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