668
FZUS61 KBUF 282002
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Thu Aug 28 2025

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 29.9 inch elongated low will slowly track across
southern and central Quebec through tonight sending its slow-moving
trailing cold front across the Lake this evening through early
Friday morning. A 30.2 inch high over the upper Great Lakes will
then settle across the Lake later Friday into the weekend, and just
east of the Lake on Monday.

LOZ062-290300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Thu Aug 28 2025

.TONIGHT...West winds 15 to 20 knots becoming north. A chance of
waterspouts this evening. Showers with a chance of thunderstorms
early, then scattered showers late this evening. Waves 3 to
5 feet.
.FRIDAY...North winds 10 to 15 knots becoming northwest. Waves
1 to 3 feet.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Waves 1 to
3 feet.
.SATURDAY...Northwest winds 10 to 15 knots becoming west. Waves
1 to 3 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots becoming northwest.
Waves 1 to 3 feet.
.SUNDAY...Northwest winds 10 knots or less becoming south. Waves
1 foot or less.
.MONDAY...Southeast winds 10 knots or less. Waves 1 foot or less.
.TUESDAY...Southeast winds 5 to 10 knots becoming south. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063-290300-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
402 PM EDT Thu Aug 28 2025

.TONIGHT...Southwest winds 15 to 20 knots becoming north. A
chance of waterspouts. Showers with a chance of thunderstorms
this evening, then scattered showers after midnight. Waves 3 to
6 feet subsiding to 3 to 5 feet.
.FRIDAY...Northwest winds 10 to 15 knots. Waves 2 to 4 feet.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. A chance of
waterspouts in the evening. A chance of showers in the evening.
Waves 2 to 3 feet.
.SATURDAY...Northwest winds 10 to 15 knots becoming west 15 to
20 knots. Waves 2 to 4 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots becoming northwest.
Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SUNDAY...Northwest winds 10 knots or less becoming south. Waves
2 feet or less.
.MONDAY...Southeast winds less than 10 knots. Waves 1 foot or
less.
.TUESDAY...Southeast winds 10 knots or less becoming south. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ064-065-290300-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
402 PM EDT Thu Aug 28 2025

.TONIGHT...Southwest winds 15 to 20 knots becoming north. A
chance of waterspouts. Showers with a chance of thunderstorms
through the early overnight, then scattered showers late. Waves
3 to 6 feet subsiding to 2 to 4 feet.
.FRIDAY...Northwest winds 10 to 15 knots becoming west. Waves
2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots becoming northwest. A
chance of waterspouts in the evening. A chance of showers in the
evening. Waves 1 to 3 feet.
.SATURDAY...Northwest winds 10 to 15 knots becoming west 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.SATURDAY NIGHT...West winds 5 to 15 knots becoming northwest.
Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SUNDAY...Northwest winds 10 knots or less becoming south. Waves
2 feet or less.
.MONDAY...Southeast winds less than 10 knots. Waves 1 foot or
less.
.TUESDAY...South winds 10 knots or less. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-290300-
MAFOR 2821/
ONTARIO WEST 1/2 11626 11720 19726 12820 11810 13710. A chance of
waterspouts this evening. Waves 3 to 6 feet tonight. Waves 2 to 4
feet subsiding to 1 to 3 feet Friday.

ONTARIO EAST 1/2 11526 11516 11620 19626 11820 19826 13710 11610.
A chance of waterspouts tonight. Waves 3 to 6 feet subsiding to 2
to 4 feet, then building to 3 to 5 feet tonight. Waves 2 to 4
feet subsiding to 1 to 3 feet Friday.

$$