Great Lakes Forecast
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000
FZUS61 KBUF 230223
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1023 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 remain across the Lower Great Lakes region
overnight. Meanwhile, a 29.6 inch low over the central Great
Lakes will 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.

LOZ062-230915-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1023 PM EDT Thu Jun 22 2017

.OVERNIGHT...South winds 10 to 15 knots becoming southwest.
A chance of showers and thunderstorms...then showers likely with
a chance of thunderstorms late. Waves 2 feet or less building to
2 to 3 feet.
.FRIDAY...Southwest winds 10 to 15 knots. Showers likely with a
chance of thunderstorms early...then a chance of showers and
thunderstorms from late morning on. Waves 2 to 3 feet.
.FRIDAY NIGHT...West winds 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>065-230915-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1023 PM EDT Thu Jun 22 2017

.OVERNIGHT...South winds 10 to 15 knots becoming southwest.
A chance of showers and thunderstorms...then showers likely with
a chance of thunderstorms late. Waves 1 foot or less building to
1 to 3 feet.
.FRIDAY...Southwest winds 10 to 15 knots. A chance of showers and
thunderstorms early...then showers likely with a chance of
thunderstorms from late morning on. Some thunderstorms may
produce gusty winds in the afternoon. 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.

$$

LOZ061-230915-
MAFOR 2303/
ONTARIO WEST 1/2 12510 11516 13510 12610. A chance of showers and
thunderstorms. Waves 1 to 3 feet.

ONTARIO EAST 1/2 11410 12510 11410 11516 11506 11516 11629. A
chance of showers and thunderstorms overnight. A chance of
showers and thunderstorms in the morning...then a chance of
thunderstorms Friday afternoon. Waves 2 feet or less overnight.
Waves 1 to 3 feet Friday and Friday evening.

$$


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