Great Lakes Forecast
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000
FZUS61 KBUF 220243
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1043 PM EDT Wed Jun 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. As this high moves east on Thursday...a warm front
will push across the lake...followed by a cold front which will
cross the lake on Friday. After that... a 30.0 inch high will
ridge from the mid- west to the Ohio River Valley over the
weekend.

LOZ062-220915-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1043 PM EDT Wed Jun 21 2017

.OVERNIGHT...Southwest winds less than 10 knots becoming
west. Waves around 1 foot.
.THURSDAY...South winds 10 knots or less becoming southeast. A
chance of showers and thunderstorms in the afternoon. Waves
1 foot or less.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots becoming
southwest 15 to 20 knots. A chance of showers and thunderstorms
in the evening...then showers likely with a chance of
thunderstorms overnight. Waves 2 feet or less.
.FRIDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers and thunderstorms in the morning...
then showers likely with a chance of thunderstorms in the
afternoon. Waves 2 to 3 feet.
.FRIDAY NIGHT...West winds 15 to 20 knots becoming northwest 5 to
15 knots. A chance of showers in the evening. Waves 1 to 3 feet.
.SATURDAY...Northwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of showers and thunderstorms during the day.
Waves 1 to 3 feet.
.SUNDAY...West winds 15 to 20 knots diminishing to 5 to 15 knots.
A chance of showers. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.MONDAY...West winds 5 to 10 knots. A chance of showers. Waves
1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-220915-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1043 PM EDT Wed Jun 21 2017

.OVERNIGHT...Southwest winds 5 to 10 knots becoming west.
Waves 1 to 3 feet.
.THURSDAY...Southwest winds 5 to 10 knots becoming southeast. A
chance of showers and thunderstorms late. Waves 2 feet or less.
.THURSDAY NIGHT...Southeast winds 5 to 15 knots becoming
southwest. A chance of showers and thunderstorms in the evening...
then showers likely with a chance of thunderstorms overnight.
Waves 2 feet or less.
.FRIDAY...South winds 10 to 15 knots becoming southwest. Showers
likely with a chance of thunderstorms. Waves 1 to 3 feet.
.FRIDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. Showers likely with a chance of thunderstorms in the
evening...then a chance of showers overnight. Waves 1 to 3 feet.
.SATURDAY...West winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers and thunderstorms during the day.
Waves 1 to 3 feet building to 2 to 4 feet.
.SUNDAY...West winds 15 to 20 knots diminishing to 5 to 15 knots.
A chance of showers. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.MONDAY...West winds 5 to 10 knots. A chance of showers. Waves
1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-220915-
MAFOR 2203/
ONTARIO WEST 1/2 12700 11500 11400 13300 11410. A chance of
showers and thunderstorms Thursday afternoon and Thursday
evening. Waves 2 feet or less.

ONTARIO EAST 1/2 13600 11500 11400 11300 11200 11310. A chance of
thunderstorms Thursday afternoon. A chance of showers and
thunderstorms Thursday evening. Waves 2 feet or less.

$$



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