Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 160233
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
933 PM EST Fri Dec 15 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 29.6 inch low will move across southern Ontario
province overnight and into New England by Saturday. Then a 30.4
inch high will build across southern Ontario Saturday night and
into New England Sunday and Monday.

LOZ062-161015-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
933 PM EST Fri Dec 15 2017

.REST OF TONIGHT...West winds to 30 knots. Snow showers likely
late this evening. Waves 5 to 8 feet building to 7 to 10 feet.
Waves occasionally around 13 feet.
.SATURDAY...West winds 15 to 25 knots becoming northwest. A
chance of snow showers in the morning. Waves 5 to 8 feet
subsiding to 2 to 4 feet. Waves occasionally around 10 feet.
.SATURDAY NIGHT...Northwest winds 5 to 15 knots becoming
northeast. Waves 1 to 3 feet.
.SUNDAY...East winds 10 to 15 knots increasing to 15 to 20 knots.
Waves 1 to 3 feet building to 2 to 4 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots becoming south 5 to
15 knots. A chance of snow and rain showers. Waves 2 to 4 feet
subsiding to 1 to 3 feet.
.MONDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots. A chance of rain showers. Waves 1 to 3 feet building to
2 to 4 feet.
.TUESDAY...Southwest winds to 30 knots becoming west. A chance of
rain showers during the day, then a chance of snow and rain
showers Tuesday night. Waves 3 to 6 feet building to 4 to 7 feet.
Waves occasionally around 9 feet.
.WEDNESDAY...West winds 15 to 25 knots diminishing to 10 to
15 knots. A chance of snow showers. Waves 4 to 7 feet subsiding
to 2 to 4 feet. Waves occasionally around 9 feet.

$$

LOZ063>065-161015-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
933 PM EST Fri Dec 15 2017

.REST OF TONIGHT...Southwest winds to 30 knots becoming west.
Lake effect snow with some rumbles of thunder possible. Waves
5 to 8 feet building to 7 to 10 feet. Waves occasionally around
13 feet.
.SATURDAY...West winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. Lake effect snow showers likely in
the morning, then a chance of snow showers early in the
afternoon. Waves 7 to 10 feet subsiding to 3 to 6 feet. Waves
occasionally around 13 feet.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots becoming north
5 to 15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.SUNDAY...Northeast winds 5 to 15 knots becoming east. Waves 1 to
3 feet.
.SUNDAY NIGHT...East winds 5 to 15 knots becoming south. A chance
of snow showers in the evening, then a chance of snow and rain
showers overnight. Waves 1 to 3 feet.
.MONDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots. A chance of rain and snow showers during the day, then
a chance of rain showers Monday night. Waves 1 to 3 feet building
to 2 to 4 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming west to
30 knots. Rain showers likely during the day, then lake effect
rain and snow showers likely Tuesday night. Waves 3 to 6 feet
building to 5 to 8 feet. Waves occasionally around 10 feet.
.WEDNESDAY...West winds 15 to 25 knots becoming northwest. Snow
showers likely. Waves 5 to 8 feet subsiding to 3 to 6 feet. Waves
occasionally around 10 feet.

$$

LOZ061-161015-
MAFOR 1604/
ONTARIO WEST 1/2 12640 11630 14720 11710. A chance of snow
showers late this evening and Saturday morning. Waves 5 to 8 feet
building to 7 to 10 feet overnight. Waves 6 to 9 feet subsiding
to 3 to 5 feet Saturday. Waves 2 to 4 feet subsiding to 1 to 3
feet Saturday evening.

ONTARIO EAST 1/2 13647 11730 13720 11710. A chance of
thunderstorms overnight. A chance of snow showers Saturday
morning. Waves 4 to 7 feet building to 7 to 10 feet overnight.
Waves 7 to 10 feet subsiding to 3 to 6 feet Saturday. Waves 3 to
5 feet subsiding to 2 to 4 feet Saturday evening.

$$


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