Great Lakes Forecast
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000
FZUS61 KBUF 210532
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
132 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
overnight into Friday. 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.

LOZ062-210915-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
132 AM EDT Fri Jul 21 2017

.OVERNIGHT...Southwest winds 5 to 10 knots becoming west. Patchy
fog. Waves 1 foot or less.
.FRIDAY...West winds 5 to 15 knots becoming southwest. Waves
2 feet or less.
.FRIDAY NIGHT...West winds 5 to 15 knots becoming southwest less
than 10 knots. Waves 2 feet or less.
.SATURDAY...Southwest winds less than 10 knots becoming east
10 to 15 knots. A chance of showers and thunderstorms in the
afternoon. Waves 1 foot or less.
.SATURDAY NIGHT...East winds 10 to 15 knots. A chance of showers
and thunderstorms. Waves 2 feet or less.
.SUNDAY...East winds 10 to 15 knots becoming northeast. Showers
and thunderstorms likely during the day...then showers likely
with a chance of thunderstorms Sunday night. Waves 1 to 2 feet.
.MONDAY...North winds around 10 knots. Waves 1 to 2 feet.
.TUESDAY...North winds 5 to 15 knots becoming northeast. Waves
2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-210915-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
132 AM EDT Fri Jul 21 2017

.OVERNIGHT...Southwest winds 5 to 10 knots becoming west. Patchy
fog. Waves 1 foot or less.
.FRIDAY...West winds 10 to 15 knots increasing to 15 to 20 knots.
Waves 1 to 3 feet.
.FRIDAY NIGHT...West winds 5 to 15 knots. Waves 1 to 2 feet.
.SATURDAY...West winds 10 knots or less becoming southeast. A
chance of showers and thunderstorms in the afternoon. Waves
2 feet or less.
.SATURDAY NIGHT...Southeast winds 5 to 15 knots becoming east. A
chance of showers and thunderstorms. Waves 2 feet or less.
.SUNDAY...East winds 5 to 15 knots becoming northeast. Showers
and thunderstorms likely during the day...then showers likely
with a chance of thunderstorms Sunday night. Waves 1 to 3 feet.
.MONDAY...North winds 10 to 15 knots. A chance of showers and
thunderstorms. Waves 1 to 3 feet.
.TUESDAY...North winds 5 to 10 knots becoming northeast. Waves
2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-210915-
MAFOR 2103/
ONTARIO WEST 1/2 11500 12600 12610 11510 12610. Waves 1 foot or
less overnight. Waves 1 to 3 feet Friday. Waves 2 feet or less
Friday evening.

ONTARIO EAST 1/2 12500 15610. Waves 2 feet or less overnight.
Waves 1 to 3 feet Friday and Friday evening.

$$



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