938
FZUS61 KBUF 242002
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Mon Aug 24 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 ridge averaging 30.1 inches will build from the
western and central Great Lakes Tuesday through Wednesday. The ridge
will exit eastward Thursday and allow a warm front to sweep
northeastward across Lake Ontario. Friday, a cold front should sweep
eastward across the lake and be followed by a high pressure ridge
averaging 30.0 inches and building from the upper Midwest.

LOZ062-250300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Mon Aug 24 2026

.TONIGHT...West winds 15 to 20 knots becoming northwest 10 to
15 knots. A chance of waterspouts through the early overnight.
Showers likely with a chance of thunderstorms early, then a
chance of showers from late evening on. Waves 3 to 6 feet
subsiding to 2 to 4 feet.
.TUESDAY...Northwest winds 5 to 15 knots becoming west. Waves
1 to 3 feet.
.TUESDAY NIGHT...West winds 10 knots or less becoming southwest.
Waves 2 feet or less.
.WEDNESDAY...South winds 10 knots or less becoming southeast.
Waves 1 foot or less.
.WEDNESDAY NIGHT...Southeast winds 5 to 15 knots becoming south.
A chance of showers overnight. Waves 1 foot or less.
.THURSDAY...Southwest winds 5 to 15 knots becoming northwest.
Showers likely with a chance of thunderstorms during the day,
then a chance of showers and thunderstorms Thursday night. Waves
1 to 2 feet.
.FRIDAY...Northwest winds 5 to 10 knots becoming north. Waves
1 foot or less.
.SATURDAY...North winds 10 knots or less becoming south. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-250300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Mon Aug 24 2026

.TONIGHT...Southwest winds 15 to 20 knots becoming northwest. A
chance of waterspouts through the early overnight. Showers with a
chance of thunderstorms this evening, then showers likely after
midnight. Waves 3 to 6 feet.
.TUESDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots. A chance of showers in the morning. Waves 3 to 5 feet
subsiding to 1 to 3 feet.
.TUESDAY NIGHT...West winds 5 to 15 knots. Waves 1 to 3 feet
subsiding to 1 foot or less.
.WEDNESDAY...Southwest winds 10 knots or less becoming southeast.
Waves 1 foot or less.
.WEDNESDAY NIGHT...Southeast winds 5 to 15 knots becoming south
15 to 20 knots. Waves 1 to 3 feet.
.THURSDAY...South winds 15 to 20 knots becoming west 5 to
15 knots. Showers likely with a chance of thunderstorms. Waves
1 to 3 feet.
.FRIDAY...Northwest winds 5 to 10 knots becoming north. Waves
2 feet or less.
.SATURDAY...North winds 10 knots or less becoming south. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-250300-
MAFOR 2421/
ONTARIO WEST 1/2 11626 12620 14710 11610. A chance of waterspouts
tonight. A chance of thunderstorms early this evening. Waves 3 to
6 feet subsiding to 2 to 4 feet tonight. Waves 2 to 4 feet
subsiding to 1 to 3 feet Tuesday.

ONTARIO EAST 1/2 11526 12626 11620 13710 11610. A chance of
waterspouts tonight. A chance of thunderstorms this evening.
Waves 3 to 6 feet tonight. Waves 3 to 5 feet subsiding to 1 to 3
feet Tuesday.

$$