Great Lakes Forecast
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000
FZUS61 KBUF 200842
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
342 AM EST Mon Nov 20 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...Expansive high pressure over the Deep South will slide
off the Atlantic coastline tonight. A 29.1 inch low just south of
James Bay on Tuesday will push a cold front across the lake Tuesday
night...then high pressure over the Plains States will build across
the Ohio Valley and Lower Great Lakes Wednesday and Thursday.

LOZ062-201600-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
342 AM EST Mon Nov 20 2017

.TODAY...West winds 20 to 25 knots. Waves 5 to 8 feet. Waves
occasionally around 10 feet.
.TONIGHT...Southwest winds 15 to 25 knots. Waves 4 to 7 feet.
Waves occasionally around 9 feet.
.TUESDAY...Southwest winds to 30 knots. A chance of showers in
the afternoon. Waves 5 to 8 feet. Waves occasionally around
10 feet.
.TUESDAY NIGHT...Southwest winds 15 to 25 knots becoming west.
Rain showers likely. Waves 3 to 6 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.THURSDAY...Southwest winds 15 to 20 knots becoming west. A
chance of snow showers Thursday night. Waves 2 to 4 feet building
to 3 to 5 feet.
.FRIDAY...West winds around 10 knots becoming southwest and
increasing to 15 to 25 knots. A chance of rain showers Friday
night. Waves 2 to 4 feet building to 4 to 7 feet. Waves
occasionally around 9 feet.

$$

LOZ063>065-201600-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
342 AM EST Mon Nov 20 2017

.TODAY...Northwest winds to 30 knots becoming west 15 to
25 knots. Lake effect snow this morning, then a chance of lake
effect snow showers early this afternoon. Lake effect snow
showers likely late. Waves 5 to 9 feet. Waves occasionally around
11 feet.
.TONIGHT...Southwest winds 15 to 25 knots. Lake effect snow
showers likely early, then a chance of snow showers late in the
evening. Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves
occasionally around 9 feet.
.TUESDAY...Southwest winds 15 to 25 knots. Waves 4 to 7 feet.
Waves occasionally around 9 feet.
.TUESDAY NIGHT...Southwest winds 15 to 25 knots becoming west.
Rain showers likely. Waves 3 to 6 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots diminishing to 10 to
15 knots. A chance of snow showers during the day. Waves 3 to
6 feet subsiding to 2 to 4 feet.
.THURSDAY...Southwest winds 15 to 20 knots becoming west. A
chance of rain and snow showers during the day, then snow and
rain showers likely Thursday night. Waves 2 to 4 feet building to
3 to 6 feet.
.FRIDAY...Northwest winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. A chance of rain and snow showers
during the day, then a chance of rain showers Friday night. Waves
3 to 5 feet building to 3 to 6 feet.

$$

LOZ061-201600-
MAFOR 2010/
ONTARIO WEST 1/2 12630 11640 11630 14530. A chance of snow
showers early this morning. Waves 5 to 9 feet, and occasionally
around 11 feet today. Waves 4 to 7 feet, and occasionally around
9 feet tonight.

ONTARIO EAST 1/2 11737 11647 12640 11630 13520. A chance of snow
showers this evening. Waves 5 to 8 feet building to 6 to 9 feet,
and occasionally around 11 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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