Great Lakes Forecast
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000
FZUS61 KBUF 070543
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1243 AM EST Thu Dec 7 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...An expansive 29.0 inch low over James Bay will slowly
push across northern Quebec through Thursday. A 29.6 inch low
over the Upper Great Lakes on Friday will pass to the north of the
lake Friday night. Another 29.6 inch low will move from the Upper
Great Lakes across Lake Ontario late Saturday and Saturday night.

LOZ062-071015-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1243 AM EST Thu Dec 7 2017

.OVERNIGHT...West winds to 30 knots. A chance of flurries late.
Waves 5 to 8 feet. Waves occasionally around 10 feet.
.THURSDAY...West winds 15 to 25 knots. Waves 3 to 6 feet.
.THURSDAY NIGHT...West winds 15 to 25 knots. Waves 4 to 6 feet.
.FRIDAY...West winds 15 to 25 knots becoming southwest to 30
knots. A chance of snow showers in the afternoon. Waves 4 to 7
feet. Waves occasionally around 9 feet.
.FRIDAY NIGHT...Southwest winds to 30 knots becoming west 15 to
25 knots. Waves 5 to 8 feet subsiding to 3 to 6 feet. Waves
occasionally around 10 feet.
.SATURDAY...Southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. Snow showers. Waves 3 to 5 feet subsiding to 2 to
4 feet.
.SUNDAY...Northwest winds 15 to 20 knots becoming west and
increasing to 30 knots. Snow showers likely. Waves 3 to 5 feet
building to 5 to 8 feet. Waves occasionally around 10 feet.
.MONDAY...West winds to 30 knots becoming northwest 15 to 25
knots. Snow showers likely during the day, then a chance of snow
showers Monday night. Waves 5 to 8 feet. Waves occasionally around
10 feet.

$$

LOZ063>065-071015-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1243 AM EST Thu Dec 7 2017

.OVERNIGHT...West winds 15 to 25 knots. Lake effect snow likely,
then lake effect snow showers likely late. Waves 5 to 9 feet.
Waves occasionally around 11 feet.
.THURSDAY...West winds 15 to 25 knots. Lake effect snow likely
early. Waves 4 to 7 feet. Waves occasionally around 9 feet.
.THURSDAY NIGHT...West winds to 30 knots becoming southwest and
diminishing to 15 to 20 knots. Lake effect snow. Waves 4 to 7
feet. Waves occasionally around 9 feet.
.FRIDAY...Southwest winds 15 to 25 knots. A chance of snow
showers. Waves 4 to 7 feet. Waves occasionally around 9 feet.
.FRIDAY NIGHT...Southwest winds to 30 knots diminishing to 15 to
25 knots. A chance of snow showers overnight. Waves 5 to 8 feet.
Waves occasionally around 10 feet.
.SATURDAY...Southwest winds 15 to 20 knots becoming west. A
chance of snow showers during the day, then snow showers Saturday
night. Waves 3 to 6 feet subsiding to 2 to 4 feet.
.SUNDAY...Northwest winds 15 to 25 knots becoming southwest to 30
knots. Snow showers. Waves 3 to 6 feet building to 5 to 8 feet.
Waves occasionally around 10 feet.
.MONDAY...Southwest winds to 30 knots becoming west. Snow showers
likely. Waves 5 to 9 feet. Waves occasionally around 11 feet.

$$

LOZ061-071015-
MAFOR 0704/
ONTARIO WEST 1/2 11640 12630 11620 14630. Waves 5 to 9 feet
subsiding to 4 to 7 feet overnight. Waves 4 to 7 feet subsiding
to 3 to 6 feet Thursday. Waves 4 to 6 feet Thursday evening.

ONTARIO EAST 1/2 11650 11630 11637 11627 13630 11637. A chance of
snow showers overnight. Waves 5 to 9 feet overnight. Waves 4 to 7
feet Thursday and Thursday evening.

$$



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