Great Lakes Forecast
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774
FZUS61 KBUF 182037
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
430 PM EDT Fri Aug 18 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 29.6 inch low to the northeast of Georgian Bay
this evening will move west central Quebec Saturday, eventually
exiting across northern Quebec Saturday night. A trailing cold front
will cross the lake this evening. A 30.1 inch high will then build
into the Ohio Valley and eastern Great Lakes Sunday and Monday.

LOZ062-190300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
430 PM EDT Fri Aug 18 2017

.TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to
15 knots. A chance of showers and thunderstorms this evening.
Waves 2 to 4 feet.
.SATURDAY...West winds 15 to 20 knots. Waves 2 to 4 feet.
.SATURDAY NIGHT...West winds 10 to 15 knots. A chance of showers
and scattered thunderstorms in the evening. Waves 1 to 3 feet.
.SUNDAY...West winds 5 to 10 knots becoming southwest. Waves 1 to
2 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves 1 to 2 feet.
.MONDAY...Southwest winds 5 to 15 knots. Waves 1 to 2 feet.
.TUESDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots. A chance of showers and thunderstorms during the day...
then showers likely with a chance of thunderstorms Tuesday night.
Waves 1 to 3 feet building to 2 to 4 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots. Showers likely with a chance of thunderstorms during
the day...then a chance of showers Wednesday night. Waves 3 to
5 feet subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-190300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
430 PM EDT Fri Aug 18 2017

.TONIGHT...Southwest winds 15 to 20 knots becoming west. Waves
1 to 3 feet building to 2 to 4 feet.
.SATURDAY...West winds 15 to 20 knots. Waves 2 to 4 feet.
.SATURDAY NIGHT...West winds 15 to 20 knots becoming northwest. A
chance of showers and scattered thunderstorms in the evening.
Waves 2 to 4 feet.
.SUNDAY...West winds 5 to 15 knots. Waves 2 to 4 feet subsiding
to 1 to 3 feet.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots. Waves 1 to 2 feet.
.MONDAY...Southwest winds 5 to 10 knots. Waves 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers and thunderstorms during the day...
then showers likely with a chance of thunderstorms Tuesday night.
Waves 1 to 3 feet building to 3 to 5 feet.
.WEDNESDAY...West winds 15 to 25 knots becoming northwest and
diminishing to 5 to 15 knots. Showers likely with a chance of
thunderstorms during the day...then a chance of showers Wednesday
night. Waves 3 to 6 feet subsiding to 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-190300-
MAFOR 1821/
ONTARIO WEST 1/2 11520 11620 13610 13620. A chance of showers and
thunderstorms this evening. Waves 2 to 4 feet.

ONTARIO EAST 1/2 12520 12510 12610 12620. Waves 1 to 3 feet
building to 2 to 4 feet tonight. Waves 2 to 4 feet Saturday.

$$



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