261
FZUS61 KBUF 250802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Sun Oct 25 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 30.5 inches affects the lake through
tonight as the embedded high pressure center moves from near Lake
Champlain toward the Mid-Atlantic states. The ridge then exits
southeastward as a weak cold front sweeps southeastward across the
lake on Monday. Behind the front, another ridge averaging 30.5
inches affects the lake through this Thursday as the embedded high
pressure center wobbles southeastward from near Manitoba to North
Atlantic waters southeast of the Canadian Maritimes.

LOZ062-251500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Sun Oct 25 2026

.TODAY...Southwest winds 5 to 10 knots. Waves 1 foot or less.
.TONIGHT...Southwest winds 5 to 15 knots. Waves 2 feet or less.
.MONDAY...West winds 5 to 15 knots becoming northwest. Waves 1 to
3 feet.
.MONDAY NIGHT...Northwest winds 15 to 20 knots becoming northeast
10 to 15 knots. Waves 1 to 3 feet.
.TUESDAY...Northeast winds 5 to 15 knots becoming east. Waves
1 to 3 feet.
.WEDNESDAY...East winds 5 to 15 knots becoming south. Waves 1 to
2 feet.
.THURSDAY...Southwest winds 15 to 20 knots becoming west 5 to
15 knots. A chance of showers. Waves 1 to 3 feet.

$$

LOZ063>065-251500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Sun Oct 25 2026

.TODAY...South winds 5 to 15 knots. Waves 2 feet or less.
.TONIGHT...South winds 5 to 15 knots becoming southwest. Waves
2 feet or less.
.MONDAY...West winds 10 to 15 knots becoming northwest. Waves
1 to 3 feet.
.MONDAY NIGHT...Northwest winds 10 to 15 knots becoming northeast
15 to 20 knots. Waves 1 to 3 feet building to 3 to 5 feet.
.TUESDAY...Northeast winds 15 to 20 knots becoming east and
diminishing to 5 to 10 knots. Waves 2 to 4 feet subsiding to
1 foot or less.
.WEDNESDAY...Southeast winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. Waves 2 feet or less building to
2 to 4 feet.
.THURSDAY...South winds 15 to 20 knots becoming west 5 to
15 knots. A chance of showers. Waves 2 to 4 feet subsiding to
1 to 3 feet.

$$

LOZ061-251500-
MAFOR 2509/
ONTARIO WEST 1/2 15500 12510. Waves 2 feet or less.

ONTARIO EAST 1/2 11400 12410 13400 11500 11510. Waves 2 feet or
less.

$$