824
FZUS61 KBUF 292312
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
712 PM EDT Fri Aug 29 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 over the Upper Great Lakes will
gradually settle across the lake tonight through Labor Day, before
drifting off the mid-Atlantic coastline Tuesday and Wednesday.

LOZ062-300315-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
712 PM EDT Fri Aug 29 2025

.TONIGHT...Northwest winds 10 to 15 knots. Waves 2 to 3 feet.
.SATURDAY...Northwest winds 10 to 15 knots becoming west. Waves
1 to 3 feet.
.SATURDAY NIGHT...Northwest winds 5 to 15 knots becoming north.
Waves 1 to 3 feet subsiding to 1 foot or less.
.SUNDAY...North winds less than 10 knots becoming southwest.
Waves 1 foot or less.
.SUNDAY NIGHT...South winds less than 10 knots. Waves 1 foot or
less.
.MONDAY...East winds 10 knots or less becoming southeast. Waves
1 foot or less.
.TUESDAY...Southeast winds 10 knots or less becoming south. Waves
1 foot or less.
.WEDNESDAY...South winds 5 to 15 knots. A chance of showers
Wednesday night. Waves 2 feet or less.

$$

LOZ063>065-300315-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
712 PM EDT Fri Aug 29 2025

.TONIGHT...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of waterspouts this evening. Scattered showers
this evening. Waves 2 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 15 to 20 knots becoming north 5 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SUNDAY...Northwest winds 10 knots or less becoming west. Waves
1 foot or less.
.SUNDAY NIGHT...West winds less than 10 knots. Waves 1 foot 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.
.WEDNESDAY...South winds 5 to 15 knots increasing to 15 to
20 knots. A chance of showers Wednesday night. Waves 1 to 3 feet.

$$

LOZ061-300315-
MAFOR 2921/
ONTARIO WEST 1/2 15710 11710 11610. Waves 1 to 3 feet.

ONTARIO EAST 1/2 12710 19716 14710 12610. A chance of waterspouts
this evening. Waves 1 to 3 feet tonight. Waves 1 to 3 feet
building to 2 to 4 feet Saturday.

$$