Great Lakes Forecast
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000
FZUS61 KBUF 231757
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
130 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 this
afternoon will track eastward across western New York today...then
across New York State tonight through Monday night. 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.

LOZ062-232100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
130 PM EDT Sun Jul 23 2017

.THIS AFTERNOON...East winds 15 to 20 knots. A chance of showers
early...then a chance of showers and thunderstorms
late. Some thunderstorms may produce gusty winds late. Waves 3 to
5 feet.
.TONIGHT...East winds 15 to 25 knots becoming northeast. Showers
and thunderstorms likely in the evening...then a chance of
showers after midnight. Some thunderstorms may produce gusty
winds in the evening. Waves 3 to 6 feet.
.MONDAY...Northeast winds 5 to 15 knots becoming northwest. A
chance of showers in the morning...then a chance of showers and
thunderstorms in the afternoon. 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 5 to 15 knots becoming southeast. Waves
3 to 5 feet subsiding to 1 to 2 feet.
.WEDNESDAY...Southeast winds 10 knots or less becoming southwest
10 to 15 knots. Waves 2 feet or less.
.THURSDAY...West winds 5 to 15 knots becoming north. A chance of
showers and thunderstorms. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-232100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
130 PM EDT Sun Jul 23 2017

.THIS AFTERNOON...Northeast winds 15 to 20 knots. A chance of
showers and thunderstorms late. Some thunderstorms may produce
gusty winds late. Waves 1 to 3 feet building to 3 to 5 feet.
.TONIGHT...Northeast winds 15 to 25 knots becoming east. Showers
and thunderstorms likely in the evening...then showers with a
chance of thunderstorms after midnight. Showers late. Some
thunderstorms may produce gusty winds in the evening. Waves 3 to
5 feet.
.MONDAY...Southeast winds 10 to 15 knots increasing to 15 to
20 knots. Showers with a chance of thunderstorms. 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...North winds 5 to 15 knots becoming southeast. Waves
3 to 5 feet subsiding to 2 feet or less.
.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 northwest. A
chance of showers and thunderstorms. Waves 2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-232100-
MAFOR 2318 AMD/
ONTARIO WEST 1/2 11220 11230 11239 12230 11120 11100. A chance of
showers and thunderstorms this afternoon. A chance of showers
overnight and Monday morning. Waves 3 to 6 feet this afternoon
and tonight. Waves 3 to 5 feet subsiding to 1 to 3 feet Monday
morning.

ONTARIO EAST 1/2 12120 11229 12226 12316. A chance of showers and
thunderstorms this afternoon. Waves 1 to 3 feet building to 3 to
5 feet this afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet
tonight. Waves 1 to 3 feet Monday morning.

$$



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