Great Lakes Forecast
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000
FZUS61 KBUF 211420
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1020 AM EDT Fri Jul 21 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 30.0 inch high will settle across the lower Lakes
this afternoon. A frontal boundary will develop across the region
over the weekend and a 29.8 inch low will track along this
boundary into the lower Great Lakes Sunday.

LOZ062-212115-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1020 AM EDT Fri Jul 21 2017

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

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-212115-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1020 AM EDT Fri Jul 21 2017

.THIS AFTERNOON...West winds 10 to 15 knots. Waves 1 to 3 feet.
.TONIGHT...West winds 5 to 15 knots becoming southwest. Waves
1 to 3 feet.
.SATURDAY...West winds 5 to 10 knots becoming northeast and
increasing to 15 to 20 knots. A chance of showers in the
afternoon. Waves 1 to 3 feet.
.SATURDAY NIGHT...East winds 15 to 20 knots. Showers likely with
a chance of thunderstorms in the evening...then showers likely
overnight. Waves 2 to 4 feet.
.SUNDAY...East winds 15 to 20 knots becoming northeast and
diminishing to 5 to 10 knots. Showers and thunderstorms likely.
Waves 2 to 4 feet subsiding to 2 feet or less.
.MONDAY...North winds 5 to 10 knots. Showers likely with a chance
of thunderstorms during the day...then a chance of showers Monday
night. Waves 2 feet or less.
.TUESDAY...North winds 5 to 15 knots becoming northeast. A chance
of showers during the day. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-212115-
MAFOR 2115/
ONTARIO WEST 1/2 11600 11510 11610 11600 14500. Waves 2 feet or
less.

ONTARIO EAST 1/2 14610 11610 11500 12600. Waves 1 to 3 feet.

$$



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