Great Lakes Forecast
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000
FZUS61 KBUF 190842
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
430 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 near western Lake Superior this early morning
will move into the central Great Lakes through the course of 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.

LOZ062-191500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
430 AM EDT Sat May 19 2018

.TODAY...East winds 10 to 15 knots. A chance of rain early, then
rain this morning. A chance of showers this afternoon. Waves 2 to
4 feet subsiding to 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>065-191500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
430 AM EDT Sat May 19 2018

.TODAY...Southeast winds 10 to 15 knots. Rain through early
afternoon. 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.

$$

LOZ061-191500-
MAFOR 1909/
ONTARIO WEST 1/2 12216 12210 11200 11310 11516 11610. A chance of
thunderstorms tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet
today. Waves 1 to 2 feet tonight.

ONTARIO EAST 1/2 11310 12316 12310 12410 11516. A chance of
thunderstorms overnight. Waves 1 to 3 feet.

$$



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