Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 090231
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
930 PM EST Fri Dec 8 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 over western Quebec will track
northeastward toward Labrador through tonight. Another 29.6 inch
low will then move from the Upper Great Lakes across the lake
late Saturday and Saturday night. 30.2 inch high pressure over the
Tennessee Valley will briefly nudge toward the lower lakes on
Sunday. A cold front will drop across the lake on Monday.

LOZ062-091000-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
930 PM EST Fri Dec 8 2017

.OVERNIGHT...West winds 15 to 25 knots becoming southwest
and diminishing to 10 to 15 knots. Waves 5 to 8 feet subsiding to
3 to 6 feet. Waves occasionally around 10 feet.
.SATURDAY...South winds 5 to 15 knots becoming southwest. Waves
2 to 4 feet subsiding to 1 to 2 feet.
.SATURDAY NIGHT...Southwest winds 5 to 15 knots becoming west
15 to 20 knots. Snow likely. Waves 1 to 3 feet building to 2 to
4 feet.
.SUNDAY...Northwest winds 15 to 25 knots becoming west to
30 knots. A chance of snow showers. Waves 3 to 6 feet building to
6 to 9 feet. Waves occasionally around 11 feet.
.SUNDAY NIGHT...West winds to 30 knots becoming north and
diminishing to 10 to 15 knots overnight. A chance of snow showers
in the evening, then lake effect snow likely overnight. Waves
5 to 9 feet subsiding to 3 to 6 feet. Waves occasionally around
11 feet.
.MONDAY...Northeast winds 5 to 15 knots becoming east 15 to
20 knots. Snow likely. Waves 1 to 3 feet building to 3 to 6 feet.
.TUESDAY...Northeast winds 15 to 20 knots becoming northwest.
Snow during the day, then snow showers likely Tuesday night.
Waves 3 to 6 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots. Snow showers likely during the day, then a chance of
snow showers Wednesday night. Waves 3 to 5 feet subsiding to 2 to
4 feet.

$$

LOZ063>065-091000-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
930 PM EST Fri Dec 8 2017

.OVERNIGHT...Southwest winds 15 to 25 knots. Scattered
flurries. Waves 5 to 8 feet subsiding to 3 to 6 feet. Waves
occasionally around 10 feet.
.SATURDAY...South winds 5 to 15 knots. Waves 3 to 5 feet
subsiding to 1 to 3 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots becoming west 15 to
20 knots. A chance of snow showers in the evening, then snow
overnight. Waves 1 to 3 feet building to 2 to 4 feet.
.SUNDAY...West winds 15 to 25 knots increasing to 30 knots. Lake
effect snow. Waves 5 to 8 feet building to 6 to 9 feet. Waves
occasionally around 11 feet.
.SUNDAY NIGHT...West winds to 30 knots becoming northwest and
diminishing to 10 to 15 knots overnight. Lake effect snow likely.
Waves 7 to 10 feet subsiding to 5 to 8 feet. Waves occasionally
around 13 feet.
.MONDAY...Northeast winds 5 to 15 knots becoming east 15 to
20 knots. Snow likely. Waves 2 to 4 feet building to 3 to 5 feet.
.TUESDAY...Northeast winds 15 to 20 knots becoming northwest.
Snow during the day, then snow showers likely Tuesday night.
Waves 3 to 6 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots becoming west. Snow
showers likely. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves
occasionally around 9 feet.

$$

LOZ061-091000-
MAFOR 0904/
ONTARIO WEST 1/2 11620 11520 13510 12500 11617. A chance of snow
showers Saturday evening. Waves 4 to 7 feet subsiding to 3 to 5
feet, and occasionally around 9 feet overnight. Waves 2 to 4 feet
subsiding to 1 to 3 feet Saturday. Waves 1 to 2 feet Saturday
evening.

ONTARIO EAST 1/2 11530 11520 11510 11410 13400 11500. Waves 5 to
8 feet subsiding to 3 to 6 feet, and occasionally around 10 feet
overnight. Waves 3 to 5 feet subsiding to 1 to 3 feet Saturday.
Waves 1 to 2 feet Saturday evening.

$$



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