Great Lakes Forecast
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000
FZUS61 KBUF 191738
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
138 PM EDT Sat Aug 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 29.6 inch low will move slowly northeast across
Quebec, eventually exiting across northern Quebec tonight. A 30.1
inch high will then build into the Ohio Valley and eastern Great
Lakes Sunday and Monday. A cold front is then forecast to cross
the eastern Great Lakes Tuesday night.

LOZ062-192115-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
138 PM EDT Sat Aug 19 2017

.THIS AFTERNOON...West winds 15 to 20 knots. Waves 3 to 5 feet.
.TONIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of waterspouts early. Waves 3 to 5 feet
subsiding to 2 to 4 feet.
.SUNDAY...West winds 5 to 10 knots becoming southwest. Waves 1 to
3 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves 1 to 2 feet.
.MONDAY...Southwest winds 5 to 10 knots. A chance of showers
Monday night. Waves 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of showers and thunderstorms during the day...
then showers likely with a chance of thunderstorms Tuesday night.
Waves 1 to 3 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots. Showers likely with a chance of thunderstorms during
the day...then a chance of showers Wednesday night. Waves 2 to
4 feet subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-192115-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
138 PM EDT Sat Aug 19 2017

.THIS AFTERNOON...West winds 15 to 20 knots. Waves 3 to 5 feet.
.TONIGHT...West winds 15 to 20 knots becoming northwest 10 to
15 knots. A chance of showers early. A chance of waterspouts in
the evening. Waves 3 to 5 feet subsiding to 2 to 4 feet.
.SUNDAY...West winds 5 to 15 knots. Waves 2 to 4 feet subsiding
to 1 to 2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves 2 feet or
less.
.MONDAY...Southwest winds 5 to 10 knots. A chance of showers
Monday night. Waves 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of showers and thunderstorms during the day...
then showers likely with a chance of thunderstorms Tuesday night.
Waves 1 to 3 feet building to 2 to 4 feet.
.WEDNESDAY...West winds 15 to 20 knots becoming northwest 10 to
15 knots. Showers likely with a chance of thunderstorms during
the day...then a chance of showers Wednesday night. Waves 2 to
4 feet subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-192115-
MAFOR 1915/
ONTARIO WEST 1/2 13620 11610 11710 12610 11600. A chance of
waterspouts this evening. Waves 3 to 5 feet this afternoon. Waves
3 to 5 feet subsiding to 2 to 4 feet tonight. Waves 1 to 3 feet
Sunday morning.

ONTARIO EAST 1/2 14620 11620 11710 12610. A chance of waterspouts
this evening. Waves 3 to 5 feet this afternoon. Waves 3 to 5 feet
subsiding to 2 to 4 feet tonight. Waves 2 to 4 feet Sunday
morning.

$$


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