Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 251731
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
131 PM EDT Sun Jun 25 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 weak 29.8 inch low near Georgian Bay will move to the Ottawa
valley tonight and to Atlantic Canada Monday. Meanwhile, a 30.2
inch high will build into the Ohio Valley, where it will remain
into Tuesday. This high will eventually build across the lower
Great Lakes by Wednesday. Then a 29.5 inch low is forecast to move
across the Great Lakes region on Thursday.

LOZ062-252115-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
131 PM EDT Sun Jun 25 2017

.THIS AFTERNOON...Southwest winds 10 to 15 knots becoming west
15 to 20 knots. A chance of showers and thunderstorms early
...then showers and thunderstorms likely late. Waves 2 to 4 feet.
.TONIGHT...West winds 10 to 15 knots. A chance of showers and
thunderstorms early...then a chance of showers. Waves 2 to 4 feet
subsiding to 1 to 2 feet.
.MONDAY...West winds 5 to 15 knots becoming south. Scattered
showers in the morning...then showers likely with a chance of
thunderstorms in the afternoon. Waves 2 feet or less.
.MONDAY NIGHT...West winds 10 to 15 knots. Showers likely with a
chance of thunderstorms in the evening...then a chance of showers
overnight. Waves 2 feet or less building to 2 to 3 feet.
.TUESDAY...West winds 15 to 20 knots. A chance of showers and
thunderstorms during the day. Waves 1 to 3 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming south 10 to
15 knots. A chance of showers Wednesday night. Waves 1 to 3 feet.
.THURSDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. Showers and thunderstorms likely during the day...then
showers likely with a chance of thunderstorms Thursday night.
Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-252115-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
131 PM EDT Sun Jun 25 2017

.THIS AFTERNOON...West winds 10 to 15 knots increasing to 15 to 20
knots. A chance of showers and thunderstorms late. Waves 2 to 4
feet.
.TONIGHT...West winds 10 to 15 knots. A chance of showers and
thunderstorms early...then a chance of showers from late evening
on. Waves 2 to 4 feet.
.MONDAY...West winds 5 to 15 knots becoming south. A chance of
showers in the morning...then showers likely with a chance of
thunderstorms in the afternoon. Waves 1 to 3 feet subsiding to
1 foot or less.
.MONDAY NIGHT...Southwest winds 15 to 20 knots. Showers with a
chance of thunderstorms. Waves 2 feet or less building to 2 to
4 feet.
.TUESDAY...Southwest winds 15 to 20 knots becoming west. Showers
likely with a chance of thunderstorms during the day...then a
chance of showers and thunderstorms Tuesday night. Waves 2 to
4 feet.
.WEDNESDAY...West winds 15 to 20 knots becoming south 5 to 15
knots. A chance of showers. Waves 2 to 4 feet subsiding to 1 to 3
feet.
.THURSDAY...South winds 10 to 15 knots becoming southwest.
Showers and thunderstorms likely during the day...then showers
likely with a chance of thunderstorms Thursday night. Waves 1 to
3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-252115-
MAFOR 2515/
ONTARIO WEST 1/2 11510 11520 13610 12600 11500. A chance of
showers and thunderstorms this afternoon and evening. Scattered
showers Monday morning. Waves 2 to 4 feet this afternoon. Waves 2
to 4 feet subsiding to 1 to 2 feet tonight. Waves 1 to 2 feet
Monday morning.

ONTARIO EAST 1/2 11610 11620 11610 12620 12610 11510. A chance of
showers tonight. Scattered showers Monday morning. Waves 2 to 4
feet this afternoon and tonight. Waves 1 to 3 feet Monday
morning.

$$



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