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fzus61 kcle 201347
glfle 
403 

open lake forecast for lake erie
national weather service cleveland oh
947 am edt sun aug 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 30.10 inches will move across the lower
lakes today and then shift eastward across ny state on monday. 
low pressure 29.90 inches will move northeast along a frontal 
boundary across the great lakes, forcing a cold front southeast 
across lake erie tuesday through tuesday night. high pressure 
30.20 inches will build east across the great lakes wednesday 
through thursday.

lez162-163-202015-
lake erie open waters from maumee bay to reno beach oh-
lake erie open waters from reno beach to the islands oh-
947 am edt sun aug 20 2017

.this afternoon...southwest winds 5 to 10 knots becoming
southeast. waves 1 foot or less. 
.tonight...southeast winds around 10 knots becoming southwest.
waves 1 foot or less. 
.monday...southwest winds 5 to 10 knots becoming south. waves
1 foot or less. 
.monday night...south winds 5 to 15 knots becoming southwest. a
chance of showers and thunderstorms. waves 2 feet or less. 
.tuesday...southwest winds 15 to 20 knots becoming northwest.
showers and thunderstorms likely during the day...then a chance
of showers and thunderstorms tuesday night. waves 1 to 3 feet. 
.wednesday...northwest winds 10 to 15 knots becoming north. waves
1 to 3 feet subsiding to 1 foot or less. 
.thursday...north winds 5 to 10 knots becoming northeast. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 201347
glfle 

lez164-165-202015-
lake erie open waters from the islands to vermilion oh-
lake erie open waters from vermilion to avon point oh-
947 am edt sun aug 20 2017

.this afternoon...southwest winds 5 to 10 knots becoming
northeast. waves 1 foot or less. 
.tonight...east winds 5 to 10 knots becoming south. waves 1 foot
or less. 
.monday...southwest winds 5 to 10 knots becoming south. waves
1 foot or less. 
.monday night...southwest winds 5 to 15 knots becoming south. a
chance of showers and thunderstorms. waves 2 feet or less. 
.tuesday...southwest winds 15 to 20 knots becoming northwest.
showers and thunderstorms likely during the day...then a chance
of showers and thunderstorms tuesday night. waves 2 to 4 feet
building to 3 to 5 feet. 
.wednesday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...north winds 5 to 10 knots becoming northeast. waves
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 201347
glfle 

lez061-166>169-202015-
lake erie open waters from ripley to buffalo ny-
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-
947 am edt sun aug 20 2017

.this afternoon...southwest winds 5 to 15 knots becoming
northwest. waves 1 to 3 feet. 
.tonight...southeast winds 5 to 15 knots becoming south. waves
1 to 3 feet. 
.monday...south winds 5 to 15 knots becoming southwest. waves
2 feet or less. 
.monday night...southwest winds 5 to 15 knots. a chance of
showers and thunderstorms. waves 2 feet or less. 
.tuesday...southwest winds 15 to 25 knots becoming northwest.
showers and thunderstorms likely during the day...then a chance
of showers and thunderstorms tuesday night. waves 2 to 4 feet
building to 4 to 7 feet...then subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.wednesday...northwest winds 15 to 20 knots becoming north and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$
fzus63 kdtx 201338
glfsc 
450 

lake st clair forecast
national weather service detroit/pontiac mi
938 am edt sun aug 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, 30.00 inches, over michigan will 
gradually slide to the east today maintaining a mainly southwesterly 
flow which will increase tuesday ahead of a strong cold front. this 
front will sweep through the great lake tuesday afternoon followed 
by an increasingly strong northwest flow that will last through the 
end of the week.

lcz460-202000-
lake st clair-
938 am edt sun aug 20 2017

.rest of today...south winds 5 to 10 knots. mostly sunny. waves 2
feet or less.
.tonight...south winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.monday...southwest winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. partly sunny. a chance of showers and
thunderstorms late in the afternoon. waves 2 feet or less.
.monday night...south winds 10 to 15 knots diminishing to 5 to 10
knots in the late evening and overnight. mostly cloudy with a chance
of showers and thunderstorms. waves 2 feet or less.
.tuesday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots in the evening. mostly cloudy becoming partly cloudy.
showers and thunderstorms likely. waves 1 to 3 feet.
.wednesday...north winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.thursday...northeast winds 5 to 10 knots. mostly clear. waves 2
feet or less.

$$
fzus63 kdtx 201337
glflh 

lhz462>464-202000-
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-
937 am edt sun aug 20 2017

.rest of today...south winds 5 to 10 knots. waves 2 feet or less.
.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late evening and overnight. waves 1 to 3 feet. 
.monday...south winds 5 to 10 knots. a chance of thunderstorms in
the afternoon. a chance of showers late in the afternoon. waves
1 to 3 feet. 
.monday night...south winds 5 to 10 knots increasing to 10 to
15 knots after midnight. a chance of showers and thunderstorms in
the evening...then showers and thunderstorms likely after
midnight. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots veering to the west
late in the afternoon...then becoming northwest 15 to 20 knots
with gusts to 30 knots late in the evening. showers and
thunderstorms likely. waves 2 to 4 feet building to 5 to 7 feet.
waves occasionally around 10 feet. 
.wednesday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots. waves 4 to 6 feet. waves occasionally around 8 feet. 
.thursday...north winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 


$$

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