681
FZUS61 KBUF 102002
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Fri Oct 10 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 30.0 inch low will move southeast across the Great
Lakes tonight through Saturday before weakening to a remnant trough
Saturday night across Western New York. A 30.4 inch high will then
build from Quebec Saturday night 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
off the Jersey shore by Monday night.

LOZ062-110300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Fri Oct 10 2025

.TONIGHT...South winds 10 to 15 knots. Showers after midnight.
Waves 1 to 3 feet.
.SATURDAY...South winds 5 to 15 knots becoming east. A chance of
waterspouts. Showers likely. Waves 1 to 2 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots increasing to 15 to
20 knots. A chance of waterspouts. A chance of showers. Waves
1 to 3 feet building to 2 to 4 feet.
.SUNDAY...East winds 15 to 20 knots. A chance of waterspouts in
the morning. A chance of showers. Waves 2 to 4 feet building to
3 to 6 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots. A chance of showers.
Waves 3 to 6 feet.
.MONDAY...East winds 15 to 20 knots becoming northeast 5 to
15 knots. A chance of showers. Waves 3 to 5 feet subsiding to
2 to 4 feet.
.TUESDAY...Northeast winds 10 knots or less becoming northwest. A
chance of showers Tuesday night. Waves 2 feet or less.
.WEDNESDAY...North winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers. Waves 1 to 3 feet building to 2 to
4 feet.

$$

LOZ063>065-110300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Fri Oct 10 2025

.TONIGHT...South winds 15 to 25 knots. A chance of showers late.
Waves 2 to 4 feet building to 3 to 5 feet.
.SATURDAY...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 in the morning. Showers likely in the
afternoon. Waves 2 to 4 feet subsiding to 1 foot or less.
.SATURDAY NIGHT...East winds 10 to 15 knots increasing to 15 to
20 knots. A chance of waterspouts. A chance of showers. Waves
1 to 3 feet building to 2 to 4 feet.
.SUNDAY...East winds 15 to 20 knots. A chance of waterspouts in
the morning. A chance of showers. Waves 2 to 4 feet building to
3 to 5 feet, then subsiding to 2 to 4 feet.
.SUNDAY NIGHT...East winds 15 to 20 knots. A chance of showers.
Waves 3 to 5 feet.
.MONDAY...East winds 15 to 20 knots becoming northeast 10 to
15 knots. A chance of showers. Waves 3 to 5 feet subsiding to
1 to 3 feet.
.TUESDAY...Northeast winds 10 knots or less becoming north 10 to
15 knots. A chance of showers. Waves 2 feet or less.
.WEDNESDAY...North winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers. Waves 1 to 3 feet building to 3 to
5 feet.

$$

LOZ061-110300-
MAFOR 1021/
ONTARIO WEST 1/2 12410 11420 11426 11416 11410 11300 11200. A
chance of waterspouts Saturday. Waves 1 to 3 feet.

ONTARIO EAST 1/2 12420 11430 12420 11410 11310 11300. A chance of
waterspouts Saturday. A chance of showers overnight and Saturday.
Waves 1 to 2 feet building to 3 to 5 feet tonight. Waves 2 to 4
feet subsiding to 1 foot or less Saturday.

$$