Great Lakes Forecast
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000
FZUS61 KBUF 250556
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
156 AM 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 29.3 inch low will remain near Labrador through today. A
secondary 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 today, 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.

LOZ062-250930-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
156 AM EDT Sun Jun 25 2017

.OVERNIGHT...Southwest winds 10 to 15 knots. Waves 1 foot
or less.
.SUNDAY...West winds 10 to 15 knots increasing to 15 to 20 knots.
Scattered showers early in the afternoon. Numerous showers and
isolated thunderstorms late. Waves 2 feet or less building to 2
to 3 feet.
.SUNDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers. Waves 1 to 3 feet.
.MONDAY...West winds 5 to 15 knots becoming south. A chance of
showers in the morning...then showers and thunderstorms likely in
the afternoon. Waves 2 feet or less.
.MONDAY NIGHT...West winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers. Waves 1 foot or less.
.TUESDAY...West winds 15 to 20 knots. A chance of showers during
the day. Waves 2 feet or less building to 2 to 3 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming south 10 to
15 knots. A chance of showers and thunderstorms Wednesday night.
Waves 1 to 3 feet.
.THURSDAY...South winds 15 to 20 knots becoming southwest 10 to
15 knots. Showers and thunderstorms likely. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-250930-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
156 AM EDT Sun Jun 25 2017

.OVERNIGHT...Southwest winds 5 to 10 knots. Waves 2 feet or
less.
.SUNDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. Scattered showers and isolated thunderstorms in the
afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers in the evening...then showers
likely with a chance of thunderstorms overnight. Waves 2 to
4 feet.
.MONDAY...West winds 5 to 15 knots becoming south. A chance of
showers in the morning...then showers and thunderstorms likely in
the afternoon. Waves 1 to 3 feet subsiding to 1 foot or less.
.MONDAY NIGHT...Southwest winds 15 to 25 knots. A chance of
showers. Waves 1 foot or less.
.TUESDAY...Southwest winds 15 to 20 knots becoming west. A chance
of showers and thunderstorms during the day...then a chance of
showers Tuesday night. Waves 1 to 3 feet.
.WEDNESDAY...West winds 15 to 20 knots becoming south 5 to
15 knots. A chance of showers during the day...then a chance of
showers and thunderstorms Wednesday night. Waves 2 to 4 feet
subsiding to 1 to 3 feet.
.THURSDAY...South winds 10 to 15 knots becoming southwest.
Showers and thunderstorms likely. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-250930-
MAFOR 2503/
ONTARIO WEST 1/2 12500 11510 11610 13620 11610. Scattered showers
and isolated thunderstorms Sunday afternoon. A chance of showers
Sunday evening. Waves 1 foot or less overnight. Waves 1 to 3 feet
Sunday. Waves 2 to 4 feet Sunday evening.

ONTARIO EAST 1/2 12500 12510 14620. A chance of showers Sunday
evening. Waves 2 feet or less overnight. Waves 1 to 3 feet
Sunday. Waves 2 to 4 feet Sunday evening.

$$



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