Great Lakes Forecast
Issued by NWS

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000
FZUS61 KBUF 231754
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1230 PM EST Tue Jan 23 2018

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 broad 29.4 inch low will advance from the eastern
shoreline of Georgian Bay this afternoon to southwest Quebec
this evening while deepening to 29.3 inches.
This system will push a cold front across the lake today. The 29.3
inch low will exiting across the Saint Lawrence Valley tonight. As
the low moves across the Canadian Maritimes on Wednesday...a 30.5
inch ridge will move across the Upper Great Lakes. The ridge will
cross the Lower Great Lakes Thursday and Thursday night...then will
make its way across New England on Friday.

LOZ062-063-232200-
Lake Ontario open waters from the Niagara River to Sodus Bay-
1230 PM EST Tue Jan 23 2018

.THIS AFTERNOON...Southwest winds 15 to 25 knots. Rain showers
early, then a chance of rain showers late. Waves
1 to 3 feet building to 3 to 5 feet.
.TONIGHT...Southwest winds to 30 knots becoming northwest. A
chance of rain showers early, then a chance of snow showers. Lake
effect snow showers likely late. Waves 4 to 7 feet building to
6 to 10 feet. Waves occasionally around 13 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots diminishing to 10 to
15 knots. Lake effect snow showers likely in the morning, then a
chance of snow showers in the afternoon. Waves 5 to 8 feet
subsiding to 2 to 4 feet. Waves occasionally around 10 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 20 knots becoming north
10 to 15 knots. A chance of snow showers in the evening. Waves
2 to 4 feet.
.THURSDAY...North winds 10 knots or less becoming south. Waves
1 to 3 feet subsiding to 1 foot or less.
.FRIDAY...Southeast winds 15 to 20 knots becoming southwest.
Waves 1 to 3 feet.
.SATURDAY...Southwest winds 15 to 20 knots becoming west 5 to
15 knots. A chance of rain showers during the day, then rain
showers likely Saturday night. Waves 1 to 3 feet building to 2 to
4 feet, then subsiding to 1 to 3 feet.

$$

LOZ064-065-232200-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
1230 PM EST Tue Jan 23 2018

.THIS AFTERNOON...South winds 10 to 15 knots becoming southwest
15 to 20 knots. Rain showers early, then a chance
of rain showers late. Waves in ice free areas 1 to 3 feet.
.TONIGHT...Southwest winds 15 to 25 knots becoming west to
30 knots. Rain showers early, then rain and snow showers late in
the evening. Lake effect snow showers after midnight. Waves 3 to
6 feet building to 6 to 10 feet. Waves occasionally around
13 feet.
.WEDNESDAY...Northwest winds 15 to 25 knots diminishing to 10 to
15 knots. Lake effect snow showers likely in the morning, then a
chance of snow showers in the afternoon. Waves 6 to 9 feet
subsiding to 2 to 4 feet. Waves occasionally around 11 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 20 knots becoming north
10 to 15 knots. A chance of snow showers in the evening. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY...North winds 5 to 15 knots becoming southwest 10 knots
or less. Waves 1 to 3 feet subsiding to 1 foot or less.
.FRIDAY...Southeast winds 10 to 15 knots becoming south 15 to
20 knots. Waves 1 to 3 feet.
.SATURDAY...South winds 15 to 20 knots becoming southwest 5 to
15 knots. A chance of rain showers during the day, then rain
showers likely Saturday night. Waves 1 to 3 feet.

Wave heights are for ice free areas.

$$

LOZ061-232200-
MAFOR 2319 AMD/
ONTARIO WEST 1/2 11520 11540 12640 11740 11730 11720. A chance of
rain showers this afternoon and evening. Waves 2 to 3 feet
building to 3 to 5 feet this afternoon. Waves 5 to 8 feet
building to 6 to 9 feet, and occasionally around 11 feet tonight.
Waves 4 to 7 feet subsiding to 3 to 6 feet, and occasionally
around 9 feet Wednesday morning.

ONTARIO EAST 1/2 11520 11530 11647 11640 11647 11737 11720. A
chance of rain showers this afternoon and evening. A chance of
lake effect snow showers Wednesday morning. Waves 2 feet or less
building to 2 to 4 feet this afternoon. Waves 4 to 7 feet
building to 6 to 10 feet, and occasionally around 13 feet
tonight. Waves 6 to 9 feet subsiding to 4 to 7 feet, and
occasionally around 11 feet Wednesday morning.

$$


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