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fzus61 kbuf 201743
glflo 
180 

open lake forecast for lake ontario
national weather service buffalo ny
143 pm edt thu jul 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...a weak cool front will cross the lake tonight 
followed by a 30.0 inch high settling across the lower lakes on 
friday. a frontal boundary will develop across the region over the 
weekend and a 29.8 inch low will track along this boundary into the 
lower great lakes sunday.

loz062-202115-
lake ontario open waters from the niagara river to hamlin beach-
143 pm edt thu jul 20 2017

.this afternoon...northeast winds 10 to 15 knots becoming east.
showers and thunderstorms. some thunderstorms may produce gusty
winds. waves 2 feet or less. 
.tonight...southeast winds 10 to 15 knots becoming west 10 knots
or less. waves 2 feet or less. 
.friday...west winds 10 to 15 knots. waves 2 feet or less. 
.friday night...west winds 5 to 15 knots diminishing to less than
10 knots. waves 1 foot or less. 
.saturday...southwest winds 10 knots or less becoming east.
showers likely during the day...then a chance of showers and
thunderstorms saturday night. waves 1 foot or less. 
.sunday...east winds 5 to 15 knots becoming north. showers likely
with a chance of thunderstorms during the day...then a chance of
showers and thunderstorms sunday night. waves 2 feet or less. 
.monday...north winds 5 to 10 knots. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kbuf 201743
glflo 

loz063>065-202115-
lake ontario open waters from hamlin beach to the saint lawrence
river-
143 pm edt thu jul 20 2017

.this afternoon...northwest winds 10 to 15 knots becoming
southwest 15 to 20 knots. showers and thunderstorms. some
thunderstorms may produce gusty winds. waves 1 to 2 feet. 
.tonight...south winds 15 to 20 knots becoming west and
diminishing to 5 to 10 knots. waves 2 feet or less. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 
.friday night...west winds 5 to 15 knots. waves 1 to 2 feet. 
.saturday...west winds 10 knots or less becoming east. a chance
of showers during the day...then a chance of showers and
thunderstorms saturday night. waves 2 feet or less. 
.sunday...east winds 5 to 15 knots becoming north. showers likely
with a chance of thunderstorms during the day...then a chance of
showers and thunderstorms sunday night. waves 2 feet or less. 
.monday...north winds 5 to 15 knots. a chance of showers and
thunderstorms. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kcle 201342
glfle 
476 

open lake forecast for lake erie
national weather service cleveland oh
942 am edt thu jul 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...low pressure of 29.90 inches will slide east along a 
stationary front across the central great lakes, pulling it south
across lake erie as a weak cold front tonight. the front will 
then stall and move back north as a warm front on friday night. 
low pressure of 29.80 inches will slide along the front north of 
the lake on saturday night forcing the front back south of lake 
erie by early sunday. high pressure 30.10 inches will move across 
the great lakes the first half of next week.

lez061-162>169-202015-
lake erie open waters from ripley to buffalo ny-
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-
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-
942 am edt thu jul 20 2017

.this afternoon...southwest winds 10 to 15 knots. a chance of
showers and thunderstorms. waves 2 feet or less. 
.tonight...southwest winds 5 to 10 knots becoming northwest. a
chance of showers and thunderstorms in the evening. waves 2 feet
or less. 
.friday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.friday night...southwest winds 5 to 10 knots becoming south. a
chance of showers and thunderstorms. waves 1 foot or less. 
.saturday...south winds 5 to 10 knots becoming southwest. showers
and thunderstorms likely. waves 2 feet or less. 
.sunday...southwest winds 5 to 15 knots becoming west. a chance
of showers and thunderstorms. waves 1 to 3 feet. 
.monday...northwest winds 10 to 15 knots becoming north. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

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