Great Lakes Forecast
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000
FZUS61 KBUF 222104
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
504 PM EDT Tue Aug 22 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 29.5 inch low over southwestern Quebec will move east
across Quebec tonight and Wednesday while deepening to 29.2 inches.
A strong cold front trailing this low will cross the Lake this
evening. The low will weaken and exit across Labrador on Thursday. A
30.2 inch high will then build from near Lake Superior Thursday to
the Central Great Lakes Friday and the eastern Great Lakes Saturday.

LOZ062-230315-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
504 PM EDT Tue Aug 22 2017

.TONIGHT...West winds 15 to 25 knots. Scattered showers early.
Waves 3 to 6 feet.
.WEDNESDAY...West winds 15 to 25 knots. A chance of showers in
the afternoon. Waves 3 to 6 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 20 knots diminishing to
around 10 knots. A chance of showers in the evening. A chance of
waterspouts. Waves 2 to 4 feet.
.THURSDAY...Northwest winds 5 to 10 knots. A chance of showers in
the morning. A chance of waterspouts. Waves 1 to 3 feet.
.THURSDAY NIGHT...Northwest winds 10 to 15 knots becoming
northeast. Waves 1 to 2 feet.
.FRIDAY...North winds 10 to 15 knots becoming northwest 10 knots
or less. Waves 2 feet or less.
.SATURDAY...Northwest winds 5 to 10 knots becoming north. Waves
1 to 2 feet.
.SUNDAY...Northeast winds 5 to 10 knots becoming east. Waves 1 to
2 feet.

$$

LOZ064-065-230315-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
504 PM EDT Tue Aug 22 2017

...TORNADO WATCH 461 IN EFFECT UNTIL 9 PM EDT THIS EVENING...

.TONIGHT...Southwest winds 15 to 25 knots becoming west.
Scattered showers and isolated thunderstorms this evening. Waves
2 to 4 feet building to 4 to 7 feet. Waves occasionally around 9
feet.
.WEDNESDAY...West winds 15 to 25 knots. A chance of showers late.
Waves 4 to 7 feet. Waves occasionally around 9 feet.
.WEDNESDAY NIGHT...West winds 15 to 20 knots becoming northwest
10 to 15 knots. A chance of showers in the evening. A chance of
waterspouts. Waves 3 to 6 feet subsiding to 2 to 4 feet.
.THURSDAY...North winds 5 to 10 knots becoming west. A chance of
waterspouts. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY NIGHT...Northwest winds 5 to 15 knots becoming
northeast. Waves 2 feet or less.
.FRIDAY...North winds 5 to 10 knots becoming northwest. Waves
1 to 2 feet.
.SATURDAY...Northwest winds 10 knots or less becoming south.
Waves 2 feet or less.
.SUNDAY...East winds 5 to 10 knots. Waves 2 feet or less.

$$

LOZ063-230315-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
504 PM EDT Tue Aug 22 2017

.TONIGHT...Southwest winds 15 to 25 knots becoming west.
Scattered showers early. Waves 2 to 4 feet building to 5 to
7 feet. Waves occasionally around 9 feet.
.WEDNESDAY...West winds 15 to 25 knots. A chance of showers late.
Waves 4 to 7 feet. Waves occasionally around 9 feet.
.WEDNESDAY NIGHT...West winds 15 to 20 knots becoming northwest
10 to 15 knots. A chance of showers in the evening. A chance of
waterspouts. Waves 3 to 6 feet subsiding to 2 to 4 feet.
.THURSDAY...Northwest winds 5 to 10 knots. A chance of showers in
the morning. A chance of waterspouts. Waves 2 to 4 feet subsiding
to 1 to 2 feet.
.THURSDAY NIGHT...Northwest winds 5 to 15 knots becoming
northeast. Waves 1 to 2 feet.
.FRIDAY...North winds 5 to 15 knots becoming northwest. Waves
1 to 3 feet.
.SATURDAY...Northwest winds 10 knots or less. Waves 1 to 2 feet.
.SUNDAY...Northeast winds 5 to 10 knots becoming east. Waves
2 feet or less.

$$

LOZ061-230315-
MAFOR 2221/
ONTARIO WEST 1/2 11530 11620 14630 11620 11630. Scattered showers
this evening. Waves 2 to 4 feet building to 3 to 6 feet tonight.
Waves 3 to 6 feet Wednesday.

ONTARIO EAST 1/2...TORNADO WATCH IN EFFECT...11529 11620 15630.
Scattered showers and isolated thunderstorms this evening. A
chance of showers Wednesday afternoon. Waves 1 to 3 feet building
to 4 to 7 feet...and occasionally around 9 feet tonight. Waves 4
to 7 feet...and occasionally around 9 feet Wednesday.

$$



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