Great Lakes Forecast
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000
FZUS61 KBUF 201645
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1245 PM EDT Tue Jun 20 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 29.4 inch low will cross northern Quebec this
afternoon and tonight. A weak 29.9 inch high over the Upper Ohio
Valley Wednesday and Wednesday night will nose north across the
Lower Great Lakes. As this high moves east on Thursday...a warm
front will push across the lake. A cold front will cross the lake
on Friday.

LOZ062-202100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1245 PM EDT Tue Jun 20 2017

.THIS AFTERNOON...West winds 10 to 15 knots. A chance of showers
and thunderstorms. Waves 1 to 3 feet.
.TONIGHT...West winds 10 to 15 knots. A chance of showers and
thunderstorms early...then showers likely with a chance of
thunderstorms. A chance of showers and thunderstorms late. Some
thunderstorms may produce gusty winds. Waves 1 to 3 feet.
.WEDNESDAY...West winds 10 to 15 knots. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Southwest winds 10 knots or less becoming
east. Waves 2 feet or less.
.THURSDAY...East winds 10 knots or less becoming. A chance of
showers and thunderstorms. Waves 2 feet or less.
.FRIDAY...Southwest winds 10 to 15 knots. Showers likely with a
chance of thunderstorms. Waves 1 to 2 feet.
.SATURDAY...Northwest winds 5 to 10 knots. A chance of showers.
Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-202100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1245 PM EDT Tue Jun 20 2017

.THIS AFTERNOON...West winds 15 to 20 knots. A chance of showers
and thunderstorms. Waves 2 to 4 feet.
.TONIGHT...West winds 15 to 20 knots. A chance of showers and
thunderstorms early...then showers likely with a chance of
thunderstorms. A chance of showers and thunderstorms late. Some
thunderstorms may produce gusty winds. Waves 1 to 3 feet.
.WEDNESDAY...West winds 15 to 20 knots diminishing to 10 to
15 knots. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...West winds 10 to 15 knots becoming southeast
less than 10 knots. Waves 2 feet or less.
.THURSDAY...Southeast winds less than 10 knots. A chance of
showers and thunderstorms. Waves 2 feet or less.
.FRIDAY...Southwest winds 10 to 15 knots. Showers likely with a
chance of thunderstorms. Waves 2 feet or less.
.SATURDAY...West winds 10 knots or less. A chance of showers.
Waves around 1 foot.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-202100-
MAFOR 2018 AMD/
ONTARIO WEST 1/2 12610 11616 11626 13610. A chance of showers and
thunderstorms this afternoon. A chance of thunderstorms tonight.
Waves 1 to 3 feet.

ONTARIO EAST 1/2 11620 11610 11626 11526 11516 11620 11610. A
chance of thunderstorms this afternoon and tonight. Waves 2 to 4
feet this afternoon. Waves 1 to 3 feet tonight. Waves 2 to 4 feet
Wednesday morning.

$$

JJR



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