328
FZUS61 KBUF 142002
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Tue Oct 14 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 cold front will move south across the Lake tonight
with an expansive 30.3 inch high then building from the upper Great
Lakes Wednesday into Quebec and the lower Great Lakes Thursday
through Friday. The large surface high will push off the East Coast
on Saturday as a large 29.2 inch surface low tracks across Ontario,
pushing its associated warm front across the Lake Saturday night,
followed by an associated cold front crossing the Lake later Sunday
into Sunday night.

LOZ062-150300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Tue Oct 14 2025

.TONIGHT...Northwest winds 10 to 15 knots becoming north 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.WEDNESDAY...North winds 15 to 20 knots becoming northwest 10 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 knots becoming north.
Waves 1 to 3 feet.
.THURSDAY...North winds 5 to 15 knots becoming northwest. Waves
1 to 3 feet.
.THURSDAY NIGHT...Northwest winds 5 to 10 knots becoming north.
Waves 1 foot or less.
.FRIDAY...North winds 10 knots or less becoming south. Showers
likely Friday night. Waves 1 foot or less.
.SATURDAY...South winds 10 to 15 knots. Showers likely. Waves
1 to 2 feet.
.SUNDAY...Southwest winds 10 to 15 knots becoming west and
increasing to 15 to 25 knots. Showers. Waves 1 to 3 feet building
to 4 to 7 feet. Waves occasionally around 9 feet.

$$

LOZ063>065-150300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Tue Oct 14 2025

.TONIGHT...West winds 10 to 15 knots becoming north 15 to
20 knots. Waves 1 to 3 feet building to 3 to 5 feet.
.WEDNESDAY...North winds 15 to 20 knots becoming northwest 10 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.WEDNESDAY NIGHT...North winds 10 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet building to 2 to 4 feet.
.THURSDAY...North winds 15 to 20 knots becoming northwest 10 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.THURSDAY NIGHT...North winds 5 to 15 knots. Waves 2 feet or
less.
.FRIDAY...North winds 10 knots or less becoming south. A chance
of showers Friday night. Waves 1 foot or less.
.SATURDAY...South winds 10 to 15 knots increasing to 15 to
20 knots. A chance of showers during the day, then showers likely
Saturday night. Waves 1 to 3 feet.
.SUNDAY...South winds 15 to 25 knots becoming southwest. Showers.
Waves 1 to 3 feet building to 5 to 8 feet. Waves occasionally
around 10 feet.

$$

LOZ061-150300-
MAFOR 1421/
ONTARIO WEST 1/2 11610 11710 14820 11810 11700. Waves 1 to 3 feet
building to 2 to 4 feet tonight. Waves 2 to 4 feet subsiding to 1
to 2 feet Wednesday.

ONTARIO EAST 1/2 11600 11610 14820 11820 11810. Waves 1 foot or
less building to 3 to 5 feet tonight. Waves 3 to 5 feet subsiding
to 1 to 3 feet Wednesday.

$$