Great Lakes Forecast
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104
FZUS61 KBUF 191434
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1034 AM EDT Sat May 19 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 weak 29.9 inch low will move across the central Great Lakes today
before reaching Quebec tonight. A cold front trailing this low
will cross the lake early Sunday morning. A 30.2 inch high will
then build into the Great Lakes Sunday night and Monday, shifting
east of the Lake on Tuesday.

LOZ062-192115-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1034 AM EDT Sat May 19 2018

.REST OF TODAY...East winds 15 to 20 knots diminishing to 5 to
15 knots. Showers likely late this morning, then a chance of
showers this afternoon. Waves 1 to 3 feet.
.TONIGHT...East winds 5 to 10 knots becoming west and increasing
to 15 to 20 knots. A chance of showers early, then showers likely
with a chance of thunderstorms. A chance of showers late. Waves
1 to 3 feet.
.SUNDAY...West winds 15 to 20 knots diminishing to 10 to 15
knots. Waves 1 to 3 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots. Waves 2 feet or less.
.MONDAY...West winds 5 to 10 knots becoming light and variable.
Waves 1 foot or less.
.TUESDAY...East winds less than 10 knots becoming west. A chance
of showers. Waves 1 foot or less.
.WEDNESDAY...Northwest winds 5 to 10 knots becoming north. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-192115-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1034 AM EDT Sat May 19 2018

.REST OF TODAY...Southeast winds 15 to 20 knots diminishing to
10 to 15 knots. Showers, then a chance of showers late. Waves
1 to 3 feet.
.TONIGHT...Southeast winds 10 to 15 knots becoming southwest
15 to 20 knots. A chance of showers early, then showers likely
with a chance of thunderstorms from late evening on. Waves 1 to
3 feet.
.SUNDAY...West winds 15 to 20 knots diminishing to 10 to 15
knots. A chance of showers in the morning. Waves 2 to 4 feet
building to 3 to 5 feet, then subsiding to 2 to 4 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots. Waves 1 to 3 feet.
.MONDAY...West winds 10 knots or less becoming southeast. Waves
2 feet or less.
.TUESDAY...Southeast winds 10 knots or less becoming west. A
chance of showers. Waves 1 foot or less.
.WEDNESDAY...West winds 10 knots or less becoming north. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-192115-
MAFOR 1915/
ONTARIO WEST 1/2 12210 11200 11310 11516 11610 12620. A chance of
thunderstorms tonight. Waves 1 to 3 feet this afternoon and
tonight. Waves 2 to 4 feet Sunday morning.

ONTARIO EAST 1/2 11316 12310 12410 11516 12620. A chance of
thunderstorms overnight. Waves 1 to 3 feet this afternoon and
tonight. Waves 2 to 4 feet building to 3 to 5 feet Sunday
morning.

$$



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