331
FZUS61 KBUF 072002
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Mon Sep 7 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 will settle over the lower Great Lakes
tonight. This high will then drift to the eastern seaboard Tuesday,
then east of the Mid Atlantic coast by Wednesday. Meanwhile, a 29.3
inch low over far northwest Ontario province Tuesday night 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.

LOZ062-080300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Mon Sep 7 2026

.TONIGHT...Southwest winds 10 knots or less. Waves 1 foot or
less.
.TUESDAY...Southwest winds 10 knots or less becoming east. Waves
1 foot or less.
.TUESDAY NIGHT...East winds 5 to 10 knots becoming south. A
chance of showers overnight. Waves 1 foot or less.
.WEDNESDAY...South winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. A chance of showers in the morning,
then showers likely 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.
Showers with a chance of thunderstorms in the evening, then
showers 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...Northwest 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>065-080300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Mon Sep 7 2026

.TONIGHT...West winds 5 to 10 knots becoming southwest. Waves
2 feet or less.
.TUESDAY...West winds 5 to 10 knots becoming northwest. Waves
2 feet or less.
.TUESDAY NIGHT...Southeast winds 10 knots or less becoming south
10 to 15 knots. Waves 2 feet or less.
.WEDNESDAY...South winds 15 to 20 knots. A chance of showers in
the morning, then showers likely 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 northwest. Waves
3 to 6 feet.
.FRIDAY...North winds 5 to 15 knots becoming south. Waves 1 to
3 feet subsiding to 1 foot or less.
.SATURDAY...South winds 10 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-080300-
MAFOR 0721/
ONTARIO WEST 1/2 11600 13500 13600 11100. Waves 1 foot or less.

ONTARIO EAST 1/2 11610 11600 12500 14600. Waves 2 feet or less.

$$