Great Lakes Forecast
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000
FZUS61 KBUF 201739
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1239 PM 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 southern states 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.

LOZ062-202215-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1239 PM EST Mon Nov 20 2017

.THIS AFTERNOON...West winds 15 to 25 knots becoming southwest. A
chance of snow showers early. 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.

$$

LOZ063>065-202215-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1239 PM EST Mon Nov 20 2017

.THIS AFTERNOON...West winds to 30 knots diminishing to 15 to 25
knots. Lake effect snow and rain showers early, then lake effect
rain showers late. Waves 7 to 10 feet subsiding to 5 to 8 feet.
Waves occasionally around 13 feet.
.TONIGHT...Southwest winds 15 to 25 knots. Lake effect rain
showers with a chance of lake effect snow showers 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.

$$

LOZ061-202215-
MAFOR 2016/
ONTARIO WEST 1/2 11640 11630 11520 14530 11540. Waves 5 to 9
feet, and occasionally around 11 feet this afternoon. Waves 4 to
7 feet, and occasionally around 9 feet tonight and Tuesday
morning.

ONTARIO EAST 1/2 11647 11637 11536 13520 12530. A chance of snow
showers this evening. Waves 7 to 10 feet subsiding to 5 to 8
feet, and occasionally around 13 feet this afternoon. Waves 4 to
7 feet subsiding to 3 to 6 feet, and occasionally around 9 feet
tonight. Waves 3 to 6 feet building to 4 to 7 feet, and
occasionally around 9 feet Tuesday morning.

$$



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