Great Lakes Forecast
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000
FZUS61 KBUF 222039
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
439 PM EDT Thu Jun 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 warm front will settle across the Lower Lakes region this
evening. Meanwhile, a 29.6 inch low will develop over the central
Great Lakes tonight and track north of the lake on Friday with an
associated cold front crossing the lake Friday night. This low
will then merge with another low and deepen to 29.2 across the
Canadian maritimes over the weekend. Meanwhile a 30.1 inch high
will build across the mid-western state and ridge into the Ohio
Valley early next week.

LOZ062-230315-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
439 PM EDT Thu Jun 22 2017

.TONIGHT...Southeast winds 5 to 15 knots becoming southwest 15 to
20 knots. A chance of showers and thunderstorms from late evening
on. Waves 2 feet or less building to 2 to 3 feet.
.FRIDAY...Southwest winds 15 to 20 knots. A chance of showers and
thunderstorms in the morning...then showers and thunderstorms
likely in the afternoon. Some thunderstorms may produce gusty
winds in the afternoon. Waves 2 to 3 feet.
.FRIDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers and thunderstorms in the evening.
Waves 1 to 3 feet.
.SATURDAY...West winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers and thunderstorms in the afternoon.
Waves 1 to 3 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots becoming southwest.
Waves 1 to 2 feet.
.SUNDAY...Southwest winds 10 to 15 knots becoming west 5 to
10 knots. Showers likely during the day...then a chance of
showers Sunday night. Waves 1 to 3 feet building to 2 to 4 feet...
then subsiding to 1 to 3 feet.
.MONDAY...West winds 5 to 10 knots. A chance of showers and
thunderstorms during the day...then a chance of showers Monday
night. Waves 1 to 2 feet.
.TUESDAY...West winds 5 to 10 knots. A chance of showers during
the day. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-230315-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
439 PM EDT Thu Jun 22 2017

.TONIGHT...Southeast winds 5 to 15 knots becoming southwest 15 to
20 knots. A chance of showers and thunderstorms. Waves 1 foot or
less building to 1 to 3 feet.
.FRIDAY...Southwest winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers and thunderstorms through early
afternoon...then showers and thunderstorms late. Some
thunderstorms may produce gusty winds late. Waves 1 to 3 feet.
.FRIDAY NIGHT...Southwest winds 15 to 20 knots becoming west
10 to 15 knots. Showers and thunderstorms likely in the evening...
then a chance of showers overnight. Some thunderstorms may
produce gusty winds in the evening. Waves 1 to 3 feet.
.SATURDAY...West winds 10 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.SATURDAY NIGHT...West winds 15 to 20 knots diminishing to 5 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SUNDAY...Southwest winds 15 to 25 knots becoming west. A chance
of showers. Waves 1 to 3 feet building to 3 to 6 feet.
.MONDAY...West winds 5 to 10 knots becoming southwest. A chance
of showers and thunderstorms during the day...then a chance of
showers Monday night. Waves 1 to 3 feet subsiding to 1 foot or
less.
.TUESDAY...West winds 5 to 10 knots. A chance of showers and
thunderstorms during the day...then a chance of showers Tuesday
night. Waves 1 to 2 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-230315-
MAFOR 2221/
ONTARIO WEST 1/2 11200 11400 11510 12520 11510 11519 11529. A
chance of showers and thunderstorms tonight and Friday morning.
Waves 1 to 3 feet.

ONTARIO EAST 1/2 12300 11410 14510 11519. A chance of
thunderstorms early this evening...then a chance of showers and
thunderstorms tonight. A chance of showers and thunderstorms
Friday morning. Waves 2 feet or less tonight. Waves 1 to 3 feet
Friday.

$$


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