Great Lakes Forecast
Issued by NWS

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FZUS61 KBUF 190542
GLFLO

GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
130 AM EDT Wed Sep 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 30.2 inch high over central Ontario will drift by
to the north of the lake overnight and Wednesday. A warm front
will gradually push across the lake Thursday and Thursday evening.
A 29.4 inch low over Lake Superior Thursday night will track well
to the north of Lake Ontario Friday and Friday night while
deepening to 29.2 inches. The deep storm system will push a strong
cold front across the lake Friday night. An expansive 30.2 inch
high will build across the Great Lakes on Saturday.

LOZ062-190900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
130 AM EDT Wed Sep 19 2018

.OVERNIGHT...North winds 5 to 10 knots. Waves 1 to 3 feet.
.WEDNESDAY...North winds 5 to 10 knots becoming northeast. Waves
1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots becoming east.
Waves 1 to 2 feet.
.THURSDAY...East winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers. Waves 2 to 4 feet.
.THURSDAY NIGHT...East winds 15 to 25 knots becoming southwest. A
chance of showers in the evening. Waves 2 to 4 feet building to
3 to 6 feet.
.FRIDAY...Southwest winds to 30 knots becoming northwest. Showers
likely with a chance of thunderstorms during the day, then a
chance of showers Friday night. Waves 5 to 8 feet building to
7 to 11 feet, then subsiding to 6 to 9 feet. Waves occasionally
around 14 feet.
.SATURDAY...North winds 15 to 20 knots becoming southeast and
diminishing to 10 knots or less. A chance of showers during the
day. Waves 3 to 6 feet subsiding to 1 foot or less.
.SUNDAY...South winds 5 to 15 knots becoming west. Waves 2 feet
or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-190900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
130 AM EDT Wed Sep 19 2018

.OVERNIGHT...Northeast winds 10 to 15 knots. Waves 1 to
3 feet.
.WEDNESDAY...North winds 5 to 15 knots. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 5 to 15 knots. Waves 2 feet or
less.
.THURSDAY...East winds 10 to 15 knots becoming southeast. A
chance of showers in the afternoon. Waves 1 to 3 feet.
.THURSDAY NIGHT...East winds 15 to 25 knots becoming southwest. A
chance of showers. Waves 2 to 4 feet building to 3 to 6 feet.
.FRIDAY...Southwest winds 15 to 25 knots becoming northwest to
30 knots. Showers likely with a chance of thunderstorms. Waves
4 to 7 feet building to 9 to 12 feet, then subsiding to 7 to
10 feet. Waves occasionally around 15 feet.
.SATURDAY...North winds 15 to 25 knots becoming east and
diminishing to 5 to 15 knots. A chance of showers during the day.
Waves 4 to 7 feet subsiding to 2 feet or less. Waves occasionally
around 9 feet.
.SUNDAY...Southeast winds 5 to 15 knots becoming southwest. Waves
2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-190900-
MAFOR 1906 AMD/
ONTARIO WEST 1/2 12810 11110 14100. Waves 1 to 3 feet.

ONTARIO EAST 1/2 11110 12810 11800 12810 11110. Waves 1 to 3 feet
overnight and Wednesday. Waves 2 feet or less Wednesday evening.

$$


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