Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 242241
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
641 PM EDT Sat Jun 24 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 across Northern Quebec early this evening will
move into Labrador tonight and remain there on Sunday. A secondary
29.8 inch low will develop near Georgian Bay tonight, moving to
the Ottawa valley Sunday night and to Atlantic Canada Monday.
Meanwhile, a 30.2 inch high will build from the Mississippi Valley
early this evening to the Ohio valley Sunday, 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.

LOZ062-250315-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
641 PM EDT Sat Jun 24 2017

.TONIGHT...West winds 5 to 15 knots becoming southwest. Waves
2 feet or less.
.SUNDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of showers from late morning on. Waves 1 to
3 feet.
.SUNDAY NIGHT...West winds 15 to 20 knots becoming northwest
10 to 15 knots. A chance of showers. Waves 2 to 4 feet subsiding
to 1 to 3 feet.
.MONDAY...Northwest winds 10 knots or less becoming southwest. 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 knots or less. A chance of showers.
Waves 1 foot or less.
.TUESDAY...West winds 5 to 15 knots. A chance of showers during
the day. Waves 2 feet or less building to 2 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 15 knots becoming south. A
chance of showers and thunderstorms Wednesday night. Waves 1 to
3 feet.
.THURSDAY...South winds 10 to 15 knots becoming west. Showers and
thunderstorms likely. Waves 2 to 4 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-250315-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
641 PM EDT Sat Jun 24 2017

.TONIGHT...West winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. Waves 1 to 3 feet subsiding to
1 foot or less.
.SUNDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of showers in the afternoon. Waves 1 foot or
less building to 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 building to 3 to 5 feet...then subsiding to 2 to 4 feet.
.MONDAY...Northwest winds 10 knots or less becoming southwest. 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 5 to 10 knots. A chance of
showers. Waves 1 foot or less.
.TUESDAY...West winds 10 to 15 knots increasing to 15 to
20 knots. 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 5 to 15 knots becoming west. Showers and
thunderstorms likely. Waves 2 to 4 feet building to 3 to 5 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-250315-
MAFOR 2421/
ONTARIO WEST 1/2 11610 12600 11500 12510 11520 11620. A chance of
showers Sunday afternoon. Waves 2 feet or less tonight. Waves 1
to 3 feet Sunday.

ONTARIO EAST 1/2 12610 12600 11500 12510 11620. A chance of
showers Sunday afternoon. Waves 1 to 3 feet.

$$



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