615
FZUS61 KBUF 080802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Tue Sep 8 2026

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 extending over the region will drift to
the eastern seaboard today. Meanwhile, a 29.3 inch low over far
northwest Ontario province will move to Hudson Bay by late
Wednesday, then to northern Quebec by Thursday while deepening to
29.0 inches. A trailing cold front will cross the lower Great Lakes
Wednesday night, followed by a 30.0 inch high building east across
the eastern Great Lakes region Thursday through Friday, before
sliding east into New England by Saturday.

LOZ062-081500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Tue Sep 8 2026

.TODAY...Southwest winds 10 knots or less becoming east. Waves
1 foot or less.
.TONIGHT...East winds 5 to 10 knots becoming south. Waves 1 foot
or less.
.WEDNESDAY...South winds 5 to 15 knots becoming southwest 15 to
20 knots. A chance of showers in the morning, then showers with a
chance of thunderstorms in the afternoon. Waves 1 to 3 feet
building to 3 to 5 feet.
.WEDNESDAY NIGHT...Southwest winds 15 to 25 knots becoming west
and diminishing to 10 to 15 knots. Showers with a chance of
thunderstorms in the evening, then showers likely overnight.
Waves 3 to 6 feet.
.THURSDAY...West winds 10 to 15 knots becoming northwest. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY...North winds 10 knots or less becoming south. Waves
2 feet or less.
.SATURDAY...South winds 5 to 10 knots becoming southwest. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-081500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Tue Sep 8 2026

.TODAY...West winds 10 knots or less becoming southwest. Waves
2 feet or less.
.TONIGHT...Southeast winds 10 knots or less becoming south 10 to
15 knots. Waves 2 feet or less.
.WEDNESDAY...South winds 15 to 20 knots becoming southwest. A
chance of showers in the morning, then showers with a chance of
thunderstorms in the afternoon. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Southwest winds 15 to 25 knots becoming west.
Showers with a chance of thunderstorms in the evening, then
showers overnight. Waves 3 to 6 feet.
.THURSDAY...West winds 15 to 20 knots becoming north. Waves 3 to
6 feet.
.FRIDAY...North winds 10 knots or less becoming south. Waves 1 to
3 feet subsiding to 1 foot or less.
.SATURDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-081500-
MAFOR 0809/
ONTARIO WEST 1/2 11500 12600 12200 12300 11400. Waves 1 foot or
less.

ONTARIO EAST 1/2 11500 13600 11400 12300 11410. Waves 2 feet or
less.

$$