Great Lakes Forecast
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000
FZUS61 KBUF 211126
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
626 AM EST Tue Nov 21 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 29.1 inch low just south of James Bay will push a
cold front across the lake tonight...then high pressure over the
Plains States will build across the Ohio Valley and Lower Great
Lakes Wednesday and Thursday. A 28.9 inch low is forecast to pass
just north of Lake Superior Friday and into Quebec Saturday which
will push another cold front across the lake.

LOZ062-211600-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
626 AM EST Tue Nov 21 2017

.TODAY...Southwest winds to 30 knots. Waves 5 to 8 feet. Waves
occasionally around 10 feet.
.TONIGHT...West winds 15 to 25 knots. Rain showers through the
early overnight, then just a chance of rain showers late. Waves 4
to 7 feet subsiding to 3 to 6 feet. Waves occasionally around 9
feet.
.WEDNESDAY...Northwest winds 15 to 25 knots becoming west.
Scattered flurries in the morning. Waves 3 to 6 feet subsiding to
2 to 4 feet.
.WEDNESDAY NIGHT...West winds 10 to 15 knots becoming southwest.
Waves 1 to 3 feet.
.THURSDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of snow showers Thursday night. Waves building
to 3 to 5 feet.
.FRIDAY...West winds 10 to 15 knots. A chance of rain showers
Friday night. Waves 1 to 3 feet.
.SATURDAY...Southwest winds 15 to 25 knots. Rain showers likely
during the day, then frequent snow showers Saturday night. Waves 4
to 7 feet. Waves occasionally around 9 feet.

$$

LOZ063>065-211600-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
626 AM EST Tue Nov 21 2017

.TODAY...Southwest winds 15 to 25 knots. Waves 5 to 8 feet. Waves
occasionally around 10 feet.
.TONIGHT...Southwest winds 15 to 25 knots becoming west. A chance
of rain showers early, then steadier rain showers from late
evening on. Waves 4 to 7 feet. Waves occasionally around 9 feet.
.WEDNESDAY...West winds 15 to 25 knots becoming northwest.
Scattered snow showers. Waves 4 to 7 feet. Waves occasionally
around 9 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 20 knots becoming west
5 to 15 knots. Waves 3 to 5 feet.
.THURSDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of snow showers Thursday night. Waves 2 to 4
feet.
.FRIDAY...West winds 10 to 15 knots. A chance of rain showers
Friday night. Waves 2 to 4 feet. Waves occasionally around 9
feet.
.SATURDAY...Southwest winds 15 to 25 knots. Rain showers likely
during the day, then frequent snow showers Saturday night. Waves 4
to 7 feet. Waves occasionally around 9 feet.

$$

LOZ061-211600-
MAFOR 2110 AMD/
ONTARIO WEST 1/2 14540 11530 12626 11620. A chance of showers
overnight. Waves 5 to 8 feet, and occasionally around 10 feet
today. Waves 4 to 7 feet subsiding to 3 to 6 feet, and
occasionally around 9 feet tonight.

ONTARIO EAST 1/2 12430 11530 11520 12530 12626. A chance of
showers early this evening. Waves 3 to 6 feet building to 5 to 8
feet, and occasionally around 10 feet today. Waves 4 to 7 feet
subsiding to 3 to 6 feet, and occasionally around 9 feet tonight.

$$

JJR/RSH



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