319
FZUS61 KBUF 040802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Sat Oct 4 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 large 30.3 inch high will remain anchored near the
Mid-Atlantic coast through Monday. A cold front will then move east
across the lower Great Lakes Tuesday or Tuesday night. This will be
followed by a strong 30.4 inch high that will build from the upper
Great Lakes Wednesday into the lower Great Lakes and Northeast by
Thursday.

LOZ062-041500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Sat Oct 4 2025

.TODAY...Southwest winds 10 knots or less becoming east. Patchy
fog early. Waves 1 foot or less.
.TONIGHT...Southeast winds 10 knots or less becoming south. Waves
1 foot or less.
.SUNDAY...Southwest winds less than 10 knots becoming southeast.
Waves 1 foot or less.
.SUNDAY NIGHT...Southeast winds 10 knots or less becoming south.
Waves 1 foot or less.
.MONDAY...Southwest winds 10 to 15 knots. A chance of showers
Monday night. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 10 to 15 knots becoming north 15 to
20 knots. Showers. Waves 2 to 4 feet building to 3 to 5 feet.
.WEDNESDAY...North winds 15 to 20 knots becoming northeast. Waves
3 to 5 feet subsiding to 2 to 4 feet.

$$

LOZ063>065-041500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Sat Oct 4 2025

.TODAY...Southwest winds 10 knots or less becoming south. Waves
1 foot or less.
.TONIGHT...Southeast winds 10 knots or less becoming south. Waves
1 foot or less.
.SUNDAY...South winds 10 knots or less becoming east. Waves
2 feet or less.
.SUNDAY NIGHT...Southeast winds 5 to 15 knots becoming south.
Waves 1 foot or less building to 1 to 3 feet.
.MONDAY...South winds 5 to 15 knots. A chance of showers Monday
night. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 25 knots becoming north. Showers
with a chance of thunderstorms. Waves 1 to 3 feet building to
3 to 6 feet.
.WEDNESDAY...North winds 15 to 25 knots becoming northeast. A
chance of showers during the day. Waves 3 to 6 feet subsiding to
2 to 4 feet.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-041500-
MAFOR 0409/
ONTARIO WEST 1/2 12500 11600 11800 12300 12400. Waves 1 foot or
less.

ONTARIO EAST 1/2 13500 11600 13300 11400. Waves 1 foot or less.

$$