Great Lakes Forecast
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000
FZUS61 KBUF 221750
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
130 PM EDT Sat Jul 22 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 frontal boundary will be across the region over the
weekend and a 29.8 inch low will track along this boundary across
the lower Great Lakes Sunday. A 30.2 inch high will then ridge from
Hudson Bay to the Upper Great Lakes Monday and extend across the
Lower Lakes Tuesday.

LOZ062-222100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
130 PM EDT Sat Jul 22 2017

.THIS AFTERNOON...Northeast winds 10 knots or less. A chance of
showers. Waves 1 foot or less.
.TONIGHT...Northeast winds 5 to 10 knots. A chance of showers
early. Waves 1 foot or less.
.SUNDAY...East winds 10 to 15 knots increasing to 15 to 20 knots.
A chance of showers in the afternoon. Waves 1 to 3 feet building
to 2 to 4 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots. A chance of showers
and thunderstorms. Waves 3 to 5 feet.
.MONDAY...Northeast winds 5 to 15 knots becoming north. A chance
of showers and thunderstorms. Waves 2 to 4 feet subsiding to 1 to
3 feet.
.TUESDAY...Northeast winds 5 to 15 knots becoming southeast.
Waves 1 to 3 feet subsiding to 1 foot or less.
.WEDNESDAY...Southeast winds 5 to 10 knots becoming southwest. A
chance of showers and thunderstorms. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-222100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
130 PM EDT Sat Jul 22 2017

.THIS AFTERNOON...West winds less than 10 knots becoming
northwest. A chance of showers. Waves 1 foot or less.
.TONIGHT...North winds 10 knots or less becoming northeast 10 to
15 knots. Waves 2 feet or less.
.SUNDAY...Northeast winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers in the afternoon. Waves 1 to
3 feet.
.SUNDAY NIGHT...Northeast winds 15 to 20 knots becoming
southeast. Showers with a chance of thunderstorms. Waves 2 to
4 feet building to 3 to 5 feet.
.MONDAY...East winds 15 to 20 knots becoming north 5 to 15 knots.
Showers and thunderstorms likely during the day...then a chance
of showers and thunderstorms Monday night. Waves 2 to 4 feet
subsiding to 1 to 3 feet.
.TUESDAY...North winds 5 to 15 knots becoming east. Waves 1 to
3 feet subsiding to 1 foot or less.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming southwest. A
chance of showers and thunderstorms Wednesday night. Waves 2 feet
or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-222100-
MAFOR 2218 AMD/
ONTARIO WEST 1/2 14100 11100 11110 11210. A chance of showers
this afternoon. Waves 1 foot or less this afternoon and tonight.
Waves 1 to 3 feet Sunday morning.

ONTARIO EAST 1/2 11600 11700 13100 12110. A chance of showers
this afternoon. Waves 2 feet or less this afternoon and tonight.
Waves 1 to 3 feet Sunday morning.

$$



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