Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 131426
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
926 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 weak 29.6 inch ridge will cross the lake this
afternoon and tonight. 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.

LOZ062-132230-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
926 AM EST Wed Dec 13 2017

.REST OF TODAY...Northwest winds 15 to 25 knots. A chance of snow
showers late this morning. Waves 4 to 7 feet. Waves occasionally
around 9 feet.
.TONIGHT...Northwest winds 15 to 20 knots. A chance of snow.
Waves 3 to 5 feet subsiding to 1 to 3 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming west. A
chance of snow in the morning, then a chance of snow showers in
the afternoon. Waves 3 to 5 feet.
.THURSDAY NIGHT...West winds 15 to 20 knots. A chance of snow
showers. Waves 3 to 5 feet subsiding to 2 to 4 feet.
.FRIDAY...Southwest winds 15 to 25 knots becoming west. Snow
showers likely. Waves 2 to 4 feet building to 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 and rain showers during the day, then a chance of snow
showers Sunday night. Waves 2 to 4 feet building to 3 to 6 feet.

$$

LOZ063>065-132230-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
926 AM EST Wed Dec 13 2017

.REST OF TODAY...Northwest winds to 30 knots. Snow showers likely
late this morning, then a chance of snow showers this afternoon.
Waves 5 to 8 feet. Waves occasionally around 10 feet.
.TONIGHT...Northwest winds 15 to 20 knots. Snow likely through
the early overnight, then a chance of snow late. Waves 4 to
7 feet subsiding to 1 to 3 feet. Waves occasionally around
9 feet.
.THURSDAY...Northwest winds 15 to 25 knots becoming west. A
chance of snow 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 20 knots diminishing to 10 to
15 knots. Lake effect snow. Waves 4 to 7 feet subsiding to 2 to
4 feet. Waves occasionally around 9 feet.
.FRIDAY...Southwest winds 15 to 25 knots. Snow showers likely.
Waves 3 to 5 feet.
.SATURDAY...Northwest winds 15 to 25 knots becoming south and
diminishing to 5 to 15 knots. Snow showers likely during the day,
then a chance of snow showers Saturday night. Waves 4 to 7 feet
subsiding to 1 to 3 feet. Waves occasionally around 9 feet.
.SUNDAY...South winds 15 to 25 knots becoming west. A chance of
snow and rain showers during the day, then a chance of snow
showers Sunday night. Waves 2 to 4 feet building to 3 to 6 feet.

$$

LOZ061-132230-
MAFOR 1316/
ONTARIO WEST 1/2 12730 11720 11710 11810 12710 11720. Scattered
snow showers this evening, then a chance of snow overnight. A
chance of snow showers Thursday morning. Waves 5 to 8 feet this
afternoon. Waves 3 to 6 feet subsiding to 1 to 3 feet tonight.
Waves 3 to 5 feet Thursday morning.

ONTARIO EAST 1/2 13730 14710 11720. A chance of snow showers this
afternoon. A chance of snow tonight and Thursday morning. Waves 5
to 8 feet this afternoon. Waves 4 to 7 feet subsiding to 1 to 3
feet tonight. Waves 3 to 5 feet Thursday morning.

$$



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