Great Lakes Forecast
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325
FZUS61 KBUF 130554
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1254 AM EST Wed Dec 13 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 29.1 inch low over the Gulf of Maine will deepen to
28.9 inches today while it will continue a northward track across
the eastern portion of Quebec. A weak 29.6 inch ridge will cross
the lake Late Wednesday and Wednesday night. A 30.1 inch high over
the Upper Mid West Thursday morning will settle over the Upper
Ohio Valley Thursday afternoon and night. A 29,7 low over the
Upper Great Lakes on Friday will cross the lake Friday night.

LOZ062-131030-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1254 AM EST Wed Dec 13 2017

.OVERNIGHT...Northwest winds to 30 knots. Scattered snow
showers. Waves 5 to 8 feet. Waves occasionally around 10 feet.
.WEDNESDAY...Northwest winds to 30 knots. Scattered flurries
early. Scattered flurries late. Waves 6 to 10 feet. Waves
occasionally around 13 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 25 knots. A chance of
snow. Waves 5 to 8 feet subsiding to 3 to 5 feet. Waves
occasionally around 10 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming west. A
chance of snow showers. Waves 3 to 6 feet.
.THURSDAY NIGHT...West winds 15 to 25 knots. A chance of snow
showers. Waves 3 to 6 feet.
.FRIDAY...Southwest winds 15 to 20 knots becoming west. Snow
showers likely. Waves 3 to 5 feet.
.SATURDAY...West winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. A chance of snow showers. Waves
3 to 6 feet subsiding to 1 to 2 feet.
.SUNDAY...Southwest winds 15 to 20 knots becoming west. A chance
of snow showers. Waves 2 to 4 feet building to 3 to 5 feet.

$$

LOZ063>065-131030-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1254 AM EST Wed Dec 13 2017

.OVERNIGHT...West winds 15 to 25 knots becoming northwest
to 30 knots. Lake effect snow, then lake effect
snow showers likely late. Waves 5 to 8 feet. Waves occasionally
around 10 feet.
.WEDNESDAY...Northwest winds to 30 knots becoming west. Snow
showers likely early, then scattered snow showers from late
morning on. Waves 8 to 12 feet. Waves occasionally around
15 feet.
.WEDNESDAY NIGHT...Northwest winds to 30 knots diminishing to
15 to 20 knots. Snow likely in the evening, then a chance of snow
overnight. Waves 8 to 11 feet subsiding to 3 to 5 feet. Waves
occasionally around 14 feet.
.THURSDAY...Northwest winds 15 to 25 knots becoming west. A
chance of snow showers in the morning, then lake effect snow
showers likely in the afternoon. Waves 3 to 6 feet building to
4 to 7 feet. Waves occasionally around 9 feet.
.THURSDAY NIGHT...West winds 15 to 25 knots becoming northwest.
Lake effect snow. Waves 4 to 7 feet subsiding to 3 to 6 feet.
Waves occasionally around 9 feet.
.FRIDAY...West winds 15 to 20 knots becoming southwest. Snow
showers likely. Waves 3 to 5 feet.
.SATURDAY...West winds 15 to 25 knots becoming south 15 to
20 knots. Snow showers likely during the day, then a chance of
snow showers Saturday night. Waves 3 to 6 feet subsiding to 1 to
3 feet.
.SUNDAY...South winds 15 to 25 knots becoming west. A chance of
snow showers during the day, then snow showers likely Sunday
night. Waves 2 to 4 feet building to 3 to 6 feet.

$$

LOZ061-131030-
MAFOR 1304/
ONTARIO WEST 1/2 14740 11740 11640 11740 11720. A chance of snow
showers overnight. A chance of snow Wednesday evening. Waves 5 to
8 feet overnight. Waves 7 to 11 feet Wednesday. Waves 6 to 9 feet
subsiding to 3 to 6 feet Wednesday evening.

ONTARIO EAST 1/2 11627 11737 13740 11640 11740 11720. A chance of
snow showers Wednesday. A chance of snow Wednesday evening. Waves
5 to 8 feet overnight. Waves 8 to 12 feet Wednesday. Waves 8 to
11 feet subsiding to 6 to 9 feet Wednesday evening.

$$



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