130
FZUS61 KBUF 110802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Sat Oct 11 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 30.1 inch low will move southeast far western New York
and weaken today. A 30.4 inch high will then build from Quebec
tonight to the Canadian Maritimes Sunday, where it will remain in
place through Tuesday. Meanwhile, a 29.5 inch low will drift from
just offshore of the Carolinas Sunday to the Mid-Alantic and then
out to sea Monday night. A 29.8 inch low will move across James Bay
Tuesday while sending a cold front through the lake Tuesday night.

LOZ062-111500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Sat Oct 11 2025

.TODAY...South winds 5 to 15 knots becoming east. A chance of
waterspouts. Showers. Waves 1 to 3 feet subsiding to 1 foot or
less.
.TONIGHT...East winds 10 to 15 knots. A chance of waterspouts in
the evening. A chance of showers in the evening. Waves 1 to
3 feet.
.SUNDAY...East winds 15 to 20 knots. A chance of showers. Waves
1 to 3 feet building to 3 to 5 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots. A chance of showers
overnight. Waves 3 to 6 feet.
.MONDAY...East winds 15 to 20 knots becoming northeast 5 to
15 knots. A chance of showers during the day. Waves 2 to 4 feet
subsiding to 1 to 2 feet.
.TUESDAY...North winds 10 knots or less becoming northwest and
increasing to 15 to 20 knots. A chance of showers Tuesday night.
Waves 2 feet or less building to 2 to 4 feet.
.WEDNESDAY...North winds 15 to 20 knots. A chance of showers
during the day. Waves 2 to 4 feet.

$$

LOZ063>065-111500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Sat Oct 11 2025

.TODAY...South winds 15 to 20 knots becoming east 5 to 15 knots.
A chance of waterspouts. Showers likely early, then a chance of
showers late this morning. Showers likely this afternoon. Waves
3 to 5 feet subsiding to 1 foot or less.
.TONIGHT...East winds 5 to 15 knots. A chance of waterspouts. A
chance of showers. Waves 1 to 3 feet.
.SUNDAY...East winds 10 to 15 knots becoming northeast 15 to
20 knots. A chance of showers in the morning. Waves 1 to 3 feet
building to 2 to 4 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots. A chance of showers
overnight. Waves 2 to 4 feet.
.MONDAY...East winds 15 to 20 knots becoming northeast 5 to
15 knots. A chance of showers. Waves 2 to 4 feet subsiding to
1 to 3 feet.
.TUESDAY...North winds 5 to 15 knots becoming northwest 15 to
20 knots. A chance of showers Tuesday night. Waves 2 feet or less
building to 2 to 4 feet.
.WEDNESDAY...North winds 15 to 20 knots. A chance of showers.
Waves 2 to 4 feet building to 3 to 5 feet.

$$

LOZ061-111500-
MAFOR 1109/
ONTARIO WEST 1/2 12416 11400 11306 11200 13210. A chance of
waterspouts. Waves 1 to 3 feet.

ONTARIO EAST 1/2 12420 11310 12200 11210 12310. A chance of
waterspouts. A chance of showers. Waves 3 to 5 feet subsiding to
1 foot or less today. Waves 1 to 3 feet tonight.

$$