Great Lakes Forecast
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000
FZUS61 KBUF 191440
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
940 AM EST Sun Nov 19 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 28.8 inches low will move east across the Saint
Lawrence Valley today. In its wake...expansive high pressure over
the southern plains will build across the Lower Mississippi Valley
tonight...then will cross the southern states on Monday. A 29.1
inch low just south of James Bay on Tuesday will push a cold front
across the lake Tuesday night. High pressure over the plains on
Wednesday will then build across the Ohio Valley and Lower Great
Lakes Wednesday night and Thursday.

LOZ062-192215-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
940 AM EST Sun Nov 19 2017

...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING...

.REST OF TODAY...Northwest gales to 35 knots. A chance of rain
showers late this morning, then a chance of rain and snow showers
this afternoon. Waves 9 to 12 feet. Waves occasionally around
15 feet.
.TONIGHT...Northwest winds to 30 knots becoming west. Scattered
snow showers early, then lake effect snow showers likely from
late evening on. Waves 9 to 12 feet subsiding to 6 to 10 feet.
Waves occasionally around 15 feet.
.MONDAY...West winds to 30 knots. Scattered rain and snow showers
in the morning. Waves 5 to 9 feet subsiding to 4 to 7 feet. Waves
occasionally around 11 feet.
.MONDAY NIGHT...Southwest winds to 30 knots. Waves 5 to 8 feet.
Waves occasionally around 10 feet.
.TUESDAY...Southwest winds to 30 knots becoming west. Rain
showers likely Tuesday night. Waves 5 to 8 feet. Waves
occasionally around 10 feet.
.WEDNESDAY...West winds 15 to 25 knots diminishing to 5 to 15
knots. Waves 3 to 6 feet subsiding to 1 to 3 feet.
.THURSDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. Waves 1 to 3 feet building to 3 to 5 feet.

$$

LOZ063>065-192215-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
940 AM EST Sun Nov 19 2017

...GALE WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING...

.REST OF TODAY...Northwest gales to 35 knots. Rain and snow
showers likely late this morning, then a chance of rain and snow
showers early this afternoon. Rain and snow showers likely late.
Waves 11 to 15 feet. Waves occasionally around 19 feet.
.TONIGHT...Northwest gales to 35 knots diminishing to 30 knots.
Lake effect snow showers likely early, then lake effect snow from
late evening on. Waves 10 to 14 feet subsiding to 8 to 11 feet.
Waves occasionally around 18 feet.
.MONDAY...Northwest winds to 30 knots becoming west. Lake effect
snow with lake effect rain showers likely in the morning, then
lake effect rain in the afternoon. Waves 6 to 10 feet. Waves
occasionally around 13 feet.
.MONDAY NIGHT...Southwest winds 15 to 25 knots increasing to 30
knots. Rain showers likely in the evening. Waves 5 to 8 feet.
Waves occasionally around 10 feet.
.TUESDAY...Southwest winds to 30 knots becoming west 15 to 25
knots. Rain showers likely Tuesday night. Waves 5 to 8 feet. Waves
occasionally around 10 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots becoming west and
diminishing to 5 to 10 knots. A chance of snow showers during the
day. Waves 4 to 7 feet subsiding to 1 to 2 feet. Waves
occasionally around 9 feet.
.THURSDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of snow and rain showers Thursday night. Waves
1 to 3 feet building to 3 to 5 feet.

$$

LOZ061-192215-
MAFOR 1916/
ONTARIO WEST 1/2...GALE WARNING IN EFFECT...13750 11740 12647
12640. A chance of rain and snow showers this afternoon. A chance
of lake effect snow showers this evening. A chance of snow
showers and scattered rain showers Monday morning. Waves 10 to 13
feet, and occasionally around 16 feet this afternoon. Waves 9 to
13 feet subsiding to 5 to 8 feet, and occasionally around 16 feet
tonight. Waves 6 to 9 feet, and occasionally around 11 feet
Monday morning.

ONTARIO EAST 1/2...GALE WARNING IN EFFECT...12750 11757 13747
11737 11647. A chance of rain and snow showers this afternoon.
Waves 11 to 15 feet, and occasionally around 19 feet this
afternoon. Waves 10 to 14 feet subsiding to 8 to 11 feet, and
occasionally around 18 feet tonight. Waves 5 to 9 feet, and
occasionally around 11 feet Monday morning.

$$


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