Great Lakes Forecast
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000
FZUS61 KBUF 130825
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
425 AM EDT Fri Oct 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 30.5 inch high will be anchored over the Canadian
maritimes through tonight. The high will drift further offshore on
Saturday while a storm system will become organized over the Upper
Mississippi Valley. The resulting surface low will deepen to 29.4
inches when it will pass over the Upper Great Lakes Saturday
night...then will intensify to 29.1 inches as it will make its way
to western Quebec on Sunday. A strong cold front extending south
from this system will plow across Lake Ontario on Sunday. A 30.4
inch high over the southern plains Sunday night will nose across
the Ohio Valley to the Lower Great Lakes on Monday.

LOZ062-131515-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
425 AM EDT Fri Oct 13 2017

.TODAY...Southeast winds 10 to 15 knots becoming south. Waves 1
to 3 feet.
.TONIGHT...South winds 5 to 10 knots becoming southwest. Waves
1 to 2 feet.
.SATURDAY...Southwest winds 10 knots or less becoming southeast.
A chance of showers in the afternoon. Waves 2 feet or less.
.SATURDAY NIGHT...Southeast winds 10 to 15 knots. A chance of
showers in the evening. Waves 1 to 3 feet.
.SUNDAY...Southwest winds 15 to 25 knots becoming northwest to
30 knots. Showers during the day, then just a chance of showers
Sunday night. Waves building to 7 to 11 feet. Waves occasionally
around 14 feet.
.MONDAY...Northwest winds 15 to 20 knots. A chance of showers.
Waves 3 to 6 feet.
.TUESDAY...West winds 15 to 20 knots. Waves 3 to 6 feet.

$$

LOZ063>065-131515-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
425 AM EDT Fri Oct 13 2017

.TODAY...Southeast winds 15 to 20 knots becoming south. Waves
3 to 5 feet subsiding to 2 to 4 feet.
.TONIGHT...South winds 15 to 20 knots becoming southwest. A
chance of showers from late evening on. Waves 3 to 5 feet.
.SATURDAY...Southwest winds 10 to 15 knots becoming southeast
less than 10 knots. A chance of showers in the afternoon. Waves 1
to 3 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots becoming south 15 to
20 knots. A chance of showers in the evening. Waves 2 to 4 feet.
.SUNDAY...South winds 15 to 25 knots becoming northwest to
30 knots. Showers with a chance of thunderstorms during the day,
then just showers likely Sunday night. Waves building to 10 to 13
feet. Waves occasionally around 16 feet.
.MONDAY...Northwest winds 15 to 20 knots. A chance of showers.
Waves 4 to 7 feet. Waves occasionally around 9 feet.
.TUESDAY...West winds 15 to 20 knots. Waves 3 to 6 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-131515-
MAFOR 1309/
ONTARIO WEST 1/2 11320 13410 11400 11410 11510 11500. Waves 2 to
4 feet subsiding to 1 to 3 feet today. Waves 1 to 2 feet tonight.

ONTARIO EAST 1/2 12320 15420. Waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 2 to 4 feet today. Waves 2 to 4 feet
tonight.

$$



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