601
FZUS61 KBUF 281402
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 AM 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 30.2 inch high will slide east out to sea off the Mid-
Atlantic coast today. A 29.7 inch low will track across central
Quebec today and tonight sending its slow-moving trailing cold front
across the Lake late this afternoon 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.

LOZ062-282100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 AM EDT Thu Aug 28 2025

.THIS AFTERNOON...Southwest winds 15 to 25 knots becoming west. A
chance of waterspouts. Showers with a chance of
thunderstorms. Waves 3 to 6 feet.
.TONIGHT...West winds 15 to 20 knots becoming north. A chance of
waterspouts in the evening. Showers with a chance of
thunderstorms early, then a chance of showers and thunderstorms
late in the evening. Waves 3 to 6 feet subsiding to 2 to 4 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
2 feet.
.SATURDAY...Northwest winds 5 to 10 knots. Waves 1 to 2 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.

Winds and waves higher in and near thunderstorms.

$$

LOZ063-282100-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
1002 AM EDT Thu Aug 28 2025

.THIS AFTERNOON...Southwest winds 15 to 25 knots. A chance of
waterspouts. A chance of showers early.
Showers with a chance of thunderstorms late. Waves
3 to 6 feet building to 4 to 7 feet. Waves occasionally around
9 feet.
.TONIGHT...Southwest winds 15 to 20 knots becoming north. A
chance of waterspouts. Showers with a chance of thunderstorms in
the evening, then a chance of showers after midnight. Waves 4 to
7 feet subsiding to 2 to 4 feet. Waves occasionally around
9 feet.
.FRIDAY...North winds 10 to 15 knots becoming west. A chance of
waterspouts in the morning. A chance of showers in the morning.
Waves 2 to 4 feet subsiding to 1 to 3 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots becoming northwest.
Waves 2 to 3 feet.
.SATURDAY...Northwest winds 5 to 10 knots. Waves 1 to 2 feet.
.SUNDAY...Northwest winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.MONDAY...South winds less than 10 knots becoming southeast.
Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ064-065-282100-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
1002 AM EDT Thu Aug 28 2025

.THIS AFTERNOON...Southwest winds 15 to 20 knots. A chance of
showers early. Showers likely with a chance of
thunderstorms late. A chance of waterspouts late. Waves 3 to
6 feet.
.TONIGHT...Southwest winds 15 to 20 knots becoming north. A
chance of waterspouts. Showers with a chance of thunderstorms in
the evening, then a chance of showers after midnight. Waves 3 to
6 feet subsiding to 2 to 4 feet.
.FRIDAY...North winds 10 to 15 knots becoming west. A chance of
waterspouts in the morning. A chance of showers. Waves 1 to
3 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots becoming northwest.
Waves 1 to 2 feet.
.SATURDAY...Northwest winds 5 to 10 knots. Waves 2 feet or less.
.SUNDAY...Northwest winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.MONDAY...South winds less than 10 knots becoming southeast.
Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-282100-
MAFOR 2815/
ONTARIO WEST 1/2 11530 11536 11626 11720 12820 11810 11710. A
chance of waterspouts this afternoon and evening. A chance of
thunderstorms this afternoon and evening. Waves 3 to 6 feet
building to 4 to 7 feet, and occasionally around 9 feet this
afternoon. Waves 3 to 6 feet subsiding to 2 to 4 feet tonight.
Waves 2 to 4 feet Friday morning.

ONTARIO EAST 1/2 12520 12526 11710 11820 11810 11710. A chance of
waterspouts this afternoon and tonight. A chance of thunderstorms
this afternoon and evening. Waves 3 to 6 feet building to 4 to 7
feet, and occasionally around 9 feet this afternoon. Waves 4 to 7
feet subsiding to 2 to 4 feet, and occasionally around 9 feet
tonight. Waves 2 to 4 feet subsiding to 1 to 3 feet Friday
morning.

$$