Great Lakes Forecast
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FZUS61 KBUF 191735
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
135 PM EDT Thu Oct 19 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 cold front will cross the lake this afternoon.
Otherwise a 30.4 inch high over the Mid Atlantic states will
remain in place through Sunday. A cold front is then forecast to
move into the eastern Great Lakes late Monday.

LOZ062-192115-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
135 PM EDT Thu Oct 19 2017

.THIS AFTERNOON...Southwest winds 15 to 20 knots becoming west.
Waves 2 to 4 feet.
.TONIGHT...West winds 15 to 20 knots diminishing to 10 to 15
knots. Waves 2 to 4 feet.
.FRIDAY...West winds 5 to 15 knots becoming southwest. Waves 1 to
3 feet.
.FRIDAY NIGHT...Southwest winds 10 to 15 knots. Waves 1 to 2
feet.
.SATURDAY...Southwest winds 5 to 10 knots becoming south. Waves
2 feet or less.
.SUNDAY...South winds 5 to 15 knots. Waves 1 to 3 feet.
.MONDAY...Southwest winds 5 to 15 knots becoming south. A chance
of showers during the day, then showers likely Monday night.
Waves 1 to 3 feet.

$$

LOZ063>065-192115-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
135 PM EDT Thu Oct 19 2017

.THIS AFTERNOON...Southwest winds 15 to 20 knots. Waves 3 to 6
feet.
.TONIGHT...West winds 15 to 20 knots. Waves 3 to 5 feet.
.FRIDAY...Northwest winds 15 to 20 knots becoming west 5 to 15
knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots becoming south.
Waves 1 to 2 feet.
.SATURDAY...South winds 5 to 10 knots increasing to 15 to 20
knots. Waves 1 to 3 feet.
.SUNDAY...South winds 10 to 15 knots increasing to 15 to 20
knots. Waves 1 to 3 feet building to 2 to 4 feet.
.MONDAY...South winds 15 to 20 knots. A chance of showers during
the day, then showers likely Monday night. Waves 2 to 4 feet
subsiding to 1 to 3 feet.

$$

LOZ061-192115-
MAFOR 1915/
ONTARIO WEST 1/2 11530 11520 14620 12610. Waves 3 to 5 feet
subsiding to 2 to 4 feet this afternoon. Waves 2 to 4 feet
tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet Friday
morning.

ONTARIO EAST 1/2 11430 11520 14620 12710. Waves 3 to 6 feet this
afternoon and tonight. Waves 2 to 4 feet Friday morning.

$$



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