099
FZUS61 KBUF 052002
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EDT Sun Oct 5 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 push
southeast across the lower Great Lakes between Tuesday afternoon and
early Tuesday evening. This will be followed by a strong 30.4 inch
high that will build from the upper Great Lakes Wednesday to the
lower Great Lakes and New England Thursday.

LOZ062-060300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EDT Sun Oct 5 2025

.TONIGHT...Southeast winds 5 to 10 knots becoming south. Waves
1 foot or less.
.MONDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots. Waves 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Showers likely
with a chance of thunderstorms overnight. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 10 to 15 knots becoming west. Showers
with a chance of thunderstorms in the morning, then showers in
the afternoon. Waves 2 to 3 feet.
.TUESDAY NIGHT...Northwest winds 15 to 20 knots becoming north.
Showers in the evening, then showers likely overnight. Waves 2 to
4 feet.
.WEDNESDAY...North winds 15 to 20 knots becoming northeast. Waves
2 to 4 feet.
.THURSDAY...Northeast winds 5 to 15 knots becoming south. Waves
1 to 3 feet subsiding to 1 foot or less.
.FRIDAY...Southwest winds 5 to 10 knots. Waves 1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-060300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 PM EDT Sun Oct 5 2025

.TONIGHT...East winds 5 to 15 knots becoming south. Waves 2 feet
or less.
.MONDAY...South winds 10 to 15 knots becoming southeast. Waves
2 feet or less.
.MONDAY NIGHT...South winds 5 to 15 knots increasing to 15 to
20 knots. A chance of showers overnight. Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming west 10 to
15 knots. Showers with a chance of thunderstorms. Waves 1 to
3 feet building to 2 to 4 feet, then subsiding to 1 to 3 feet.
.TUESDAY NIGHT...West winds 15 to 20 knots becoming north.
Showers. Waves 2 to 4 feet building to 3 to 5 feet.
.WEDNESDAY...North winds 15 to 20 knots. A chance of showers
during the day. Waves 3 to 5 feet subsiding to 2 to 4 feet.
.THURSDAY...Northeast winds 5 to 15 knots becoming south. Waves
2 to 4 feet subsiding to 2 feet or less.
.FRIDAY...South winds 10 to 15 knots becoming southwest. Waves
2 feet or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-060300-
MAFOR 0521/
ONTARIO WEST 1/2 11200 11300 12400 12500 12510. Waves 1 foot or
less tonight. Waves 1 to 3 feet Monday.

ONTARIO EAST 1/2 11210 11300 14410 11410 11310. Waves 2 feet or
less.

$$