Great Lakes Forecast
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000
FZUS61 KBUF 232345
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
730 PM EDT Sun Jul 23 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 29.7 inch low over eastern Lake Erie will track
eastward across western NY tonight stalling over Lake Ontario
Monday. Meanwhile...a 30.2 inch high will ridge from Hudson Bay to
the Upper Great Lakes through Monday...before extending across the
Lower Great Lakes Tuesday.

LOZ062-240300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
730 PM EDT Sun Jul 23 2017

.TONIGHT...East winds 15 to 25 knots. Showers likely with a
chance of thunderstorms early...then a chance of showers and
thunderstorms late this evening. A chance of showers after
midnight. Waves 3 to 6 feet.
.MONDAY...Northeast winds 5 to 15 knots becoming northwest. A
chance of showers early...then a chance of showers and
thunderstorms from late morning on. Waves 3 to 5 feet subsiding
to 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 10 to 15 knots. A chance of
showers in the evening. Waves 1 to 3 feet building to 2 to
4 feet.
.TUESDAY...North winds 10 to 15 knots becoming northeast. Waves
3 to 5 feet subsiding to 2 to 4 feet.
.TUESDAY NIGHT...East winds 5 to 10 knots becoming southeast.
Waves 2 to 4 feet subsiding to 1 to 3 feet.
.WEDNESDAY...Southeast winds 10 knots or less becoming southwest
10 to 15 knots. Waves 2 feet or less.
.THURSDAY...Southwest winds 5 to 15 knots becoming north. Showers
and thunderstorms likely during the day...then a chance of
showers Thursday night. Waves 1 foot or less.
.FRIDAY...Northeast winds 5 to 15 knots diminishing to 10 knots
or less. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-240300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
730 PM EDT Sun Jul 23 2017

.TONIGHT...Northeast winds 15 to 25 knots becoming southeast.
Showers likely with a chance of thunderstorms this evening...then
showers after midnight. Waves 3 to 5 feet.
.MONDAY...Southeast winds 10 to 15 knots increasing to 15 to
20 knots. Showers likely early...then showers with a chance of
thunderstorms from late morning on. Waves 2 to 4 feet.
.MONDAY NIGHT...Southeast winds 15 to 20 knots becoming west 5 to
15 knots. A chance of showers and thunderstorms in the evening...
then a chance of showers overnight. Waves 2 to 4 feet.
.TUESDAY...Northwest winds 10 to 15 knots becoming north 15 to
20 knots. Waves 3 to 5 feet.
.TUESDAY NIGHT...Northeast winds 5 to 15 knots becoming
southeast. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.WEDNESDAY...Southeast winds 5 to 15 knots becoming southwest
15 to 20 knots. Waves 2 feet or less.
.THURSDAY...Southwest winds 5 to 15 knots becoming north. Showers
and thunderstorms likely. Waves 2 feet or less.
.FRIDAY...Northeast winds 5 to 15 knots. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-240300-
MAFOR 2400 AMD/
ONTARIO WEST 1/2 12230 11220 11110 11100 12700. A chance of
showers and thunderstorms through early evening...then a chance
of showers overnight. A chance of showers in the morning...then a
chance of showers and thunderstorms Monday afternoon. Waves 3 to
6 feet tonight. Waves 3 to 5 feet subsiding to 1 to 3 feet
Monday.

ONTARIO EAST 1/2 13220 11310 11316 11326 11320. A chance of
showers and thunderstorms through early evening...then a chance
of showers overnight. A chance of thunderstorms in the morning...
then a chance of showers and thunderstorms Monday afternoon.
Waves 3 to 5 feet subsiding to 2 to 4 feet tonight. Waves 1 to 3
feet building to 2 to 4 feet Monday.

$$



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