Great Lakes Forecast
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000
FZUS61 KBUF 190628
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
128 AM EST Sun Nov 19 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 deepening low will cross Lake Ontario overnight,
bottoming out near 28.9 inches as it continues into the Saint
Lawrence Valley Sunday. Expansive high pressure over the southern
plains on Sunday will build across the Lower Mississippi Valley
Sunday night then cross the southern states on Monday. A 29.2 inch
low just south of James Bay on Tuesday will push a cold front
across the lake late Tuesday and Tuesday night. High pressure over
the plains on Wednesday will build across the Ohio Valley and
Lower Great Lakes Wednesday night and Thursday.

LOZ062-191015-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
128 AM EST Sun Nov 19 2017

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.OVERNIGHT...Northwest gales to 35 knots. Rain. Waves 3 to 5 feet
building to 7 to 10 feet. Waves occasionally around 13 feet.
.SUNDAY...Northwest gales to 35 knots diminishing to 30 knots. A
chance of rain showers through early afternoon, then a chance of
rain and snow showers late. Waves 10 to 14 feet. Waves occasionally
around 18 feet.
.SUNDAY NIGHT...Northwest winds to 30 knots becoming west. Lake
effect snow showers likely. Waves 10 to 14 feet subsiding to 6 to
9 feet. Waves occasionally around 18 feet.
.MONDAY...West winds  diminishing to 15 to 25 knots. A chance of
snow showers in the morning, then a chance of rain showers in the
afternoon. Waves 5 to 8 feet. Waves occasionally around 10 feet.
.MONDAY NIGHT...West winds 15 to 25 knots becoming southwest.
Waves 3 to 6 feet.
.TUESDAY...Southwest winds to 30 knots. A chance of rain showers
during the day, then rain showers likely Tuesday night. Waves 5 to
8 feet. Waves occasionally around 10 feet.
.WEDNESDAY...West winds 15 to 20 knots. Waves 3 to 5 feet.
.THURSDAY...Southwest winds 10 to 15 knots. A chance of rain and
snow showers. Waves 1 to 3 feet.

$$

LOZ063>065-191015-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
128 AM EST Sun Nov 19 2017

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

.OVERNIGHT...South winds 15 to 20 knots becoming west and
increasing to 35knot gales. Rain. Waves 4 to 7 feet building to 7
to 10 feet. Waves occasionally around 13 feet.
.SUNDAY...Northwest gales to 35 knots. Rain showers in the
morning, then rain showers likely with a chance of snow showers.
Waves 11 to 16 feet. Waves occasionally around 20 feet.
.SUNDAY NIGHT...Northwest winds to 30 knots. Lake effect snow.
Waves 10 to 14 feet. Waves occasionally around 20 feet.
.MONDAY...Northwest winds to 30 knots becoming west 15 to
25 knots. Lake effect snow in the morning, then lake effect rain
and snow showers in the afternoon. Waves 5 to 8 feet. Waves
occasionally around 10 feet.
.MONDAY NIGHT...West winds 15 to 25 knots. A chance of rain
showers in the evening. Waves subsiding to 3 to 6 feet.
.TUESDAY...Southwest winds 15 to 25 knots. A chance of rain
showers during the day, then rain showers likely Tuesday night.
Waves 5 to 8 feet. Waves occasionally around 10 feet.
.WEDNESDAY...West winds 15 to 20 knots. A chance of rain showers.
Waves 3 to 6 feet subsiding to 2 to 4 feet.
.THURSDAY...Southwest winds 10 to 15 knots. A chance of rain and
snow showers. Waves 1 to 3 feet.

$$

LOZ061-191015-
MAFOR 1907 AMD/
ONTARIO WEST 1/2...GALE WARNING IN EFFECT...11746 11756 13750
12740. A chance of rain showers Sunday morning, then a chance of
rain and snow showers Sunday afternoon. A chance of snow showers
Sunday evening. Waves 3 to 5 feet building to 7 to 10 feet, and
occasionally around 13 feet overnight. Waves 10 to 14 feet, and
occasionally around 18 feet Sunday and Sunday evening.

ONTARIO EAST 1/2...GALE WARNING IN EFFECT...11646 12756 12750
11757 11747. A chance of rain showers Sunday afternoon. Waves 4
to 7 feet building to 6 to 9 feet, and occasionally around 11
feet overnight. Waves 11 to 16 feet, and occasionally around 20
feet Sunday and Sunday evening.

$$


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