Great Lakes Forecast
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138
FZUS61 KBUF 190213
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1013 PM EDT Wed Apr 18 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 29.5 inch low will track across Pennsylvania overnight to near
Cape Cod on Thursday. This low will then strengthen to 29.3 inches
as it moves into the Canadian Maritimes on Friday. A 30.5 inch
high will then build across the Great Lakes over the weekend.

LOZ062-190915-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1013 PM EDT Wed Apr 18 2018

.OVERNIGHT...Northwest winds 10 to 15 knots becoming north
15 to 20 knots. A chance of snow late. Waves 1 to 3 feet.
.THURSDAY...North winds 15 to 25 knots becoming northwest. A
chance of snow showers early. Waves 2 to 4 feet building to 3 to
5 feet.
.THURSDAY NIGHT...Northwest winds 20 to 25 knots. A chance of
snow and rain showers in the evening. Waves 4 to 6 feet.
.FRIDAY...Northwest winds 15 to 20 knots. Waves 3 to 6 feet
subsiding to 2 to 4 feet.
.FRIDAY NIGHT...Northwest winds 5 to 15 knots. Waves 1 to 3 feet.
.SATURDAY...Northwest winds 5 to 15 knots becoming north. Waves
2 feet or less.
.SUNDAY...North winds 10 knots or less becoming east. Waves
1 foot or less.
.MONDAY...Southeast winds 10 knots or less becoming south. Waves
1 foot or less.

$$

LOZ063>065-190915-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1013 PM EDT Wed Apr 18 2018

.OVERNIGHT...West winds 5 to 15 knots becoming north. A
chance of snow late. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.THURSDAY...North winds 10 to 15 knots becoming northwest 15 to
20 knots. A chance of snow showers. Waves 1 to 3 feet building to
3 to 6 feet.
.THURSDAY NIGHT...Northwest winds 15 to 25 knots. Snow and rain
showers likely in the evening, then a chance of snow and rain
showers overnight. Waves 3 to 6 feet building to 4 to 7 feet.
Waves occasionally around 9 feet.
.FRIDAY...Northwest winds 15 to 20 knots. A chance of snow and
rain showers. Waves 3 to 6 feet subsiding to 2 to 4 feet.
.FRIDAY NIGHT...Northwest winds 15 to 20 knots becoming north
10 to 15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SATURDAY...Northwest winds 5 to 15 knots. Waves 1 to 3 feet.
.SUNDAY...Northwest winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.MONDAY...South winds 10 knots or less. Waves 1 foot or less.

$$

LOZ061-190915-
MAFOR 1903/
ONTARIO WEST 1/2 11710 11810 12820 12720 12730. Chance of snow
and rain showers Thursday evening. Waves 1 to 3 feet overnight.
Waves 2 to 4 feet building to 3 to 5 feet Thursday. Waves 4 to 6
feet Thursday evening.

ONTARIO EAST 1/2 11610 11700 12810 11820 12720 11730. Chance of
snow showers Thursday. Chance of snow and rain showers Thursday
evening. Waves 3 to 5 feet subsiding to 1 to 3 feet overnight.
Waves 1 to 3 feet building to 3 to 6 feet Thursday. Waves 3 to 6
feet building to 4 to 7 feet, and occasionally around 9 feet
Thursday evening.

$$



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