Great Lakes Forecast
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000
FZUS61 KBUF 150538
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1238 AM EST Wed Nov 15 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 30.4 inch area of high pressure stretched from
Quebec southeast across the Appalachians will drift east of the
lake overnight. A 29.6 inch low near Lake Superior on Wednesday
will drag a cold front across Lake Ontario Wednesday night. A
second cold front will cross the lake on Thursday as an expansive
30.4 high will build across the Upper Great Lakes. This high will
gradually build across Lake Ontario Thursday night and Friday. A
deepening storm will then track just to the west of the lake
during the weekend.

LOZ062-151000-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1238 AM EST Wed Nov 15 2017

.OVERNIGHT...Southeast winds 5 to 10 knots becoming south.
Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming southeast 15 to
20 knots. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...South winds 15 to 25 knots becoming southwest
to 30 knots. Showers in the evening, then a chance of showers
overnight. Waves 2 to 4 feet building to 4 to 7 feet. Waves
occasionally around 9 feet.
.THURSDAY...West winds to 30 knots becoming northwest. A chance
of rain showers. Waves 5 to 8 feet. Waves occasionally around
10 feet.
.THURSDAY NIGHT...Northwest winds 15 to 25 knots becoming north.
A chance of rain and snow showers in the evening. Waves 5 to
8 feet subsiding to 2 to 4 feet. Waves occasionally around
10 feet.
.FRIDAY...North winds 5 to 15 knots becoming south. Rain showers
Friday night. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SATURDAY...South winds 15 to 20 knots becoming west and
increasing to 35 knot gales. Rain showers. Waves 1 to 3 feet
building to 10 to 14 feet. Waves occasionally around 18 feet.
.SUNDAY...West winds 15 to 25 knots. Lake effect snow showers
likely. Waves 6 to 9 feet subsiding to 4 to 7 feet. Waves
occasionally around 11 feet.

$$

LOZ063>065-151000-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1238 AM EST Wed Nov 15 2017

.OVERNIGHT...Southeast winds 5 to 10 knots becoming south.
Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming southeast 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.WEDNESDAY NIGHT...South winds 15 to 25 knots becoming southwest
to 30 knots. Showers. Waves 3 to 5 feet building to 5 to 8 feet.
Waves occasionally around 10 feet.
.THURSDAY...Southwest winds to 30 knots becoming northwest. Lake
effect showers likely. Waves 5 to 9 feet. Waves occasionally
around 11 feet.
.THURSDAY NIGHT...Northwest winds 15 to 25 knots becoming north.
A chance of rain and snow showers in the evening. Waves 5 to
9 feet subsiding to 3 to 6 feet. Waves occasionally around
11 feet.
.FRIDAY...North winds 10 to 15 knots becoming southeast 15 to
20 knots. Rain showers Friday night. Waves 3 to 5 feet subsiding
to 2 to 4 feet.
.SATURDAY...South winds 15 to 25 knots becoming west and
increasing to 35 knot gales. Rain showers. Waves 3 to 5 feet
building to 12 to 16 feet. Waves occasionally around 20 feet.
.SUNDAY...West winds to 30 knots diminishing to 15 to 25 knots.
Lake effect snow showers likely. Waves 8 to 11 feet subsiding to
5 to 8 feet. Waves occasionally around 14 feet.

$$

LOZ061-151000-
MAFOR 1507 AMD/
ONTARIO WEST 1/2 11400 11410 12310 11320 11420 11430. A chance of
showers Wednesday evening. Waves 1 to 2 feet overnight. Waves 1
to 3 feet building to 2 to 4 feet Wednesday. Waves 2 to 4 feet
Wednesday evening.

ONTARIO EAST 1/2 11400 12410 11310 11320 12430. Waves 2 feet or
less overnight. Waves 1 to 3 feet building to 2 to 4 feet
Wednesday. Waves 3 to 6 feet Wednesday evening.

$$

JJR



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