276
FZUS61 KBUF 100202
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EDT Thu Oct 9 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 30.4 inch high will build from the lower Great Lakes
to off the New England coastline by Friday, where it will linger
through Saturday. Another 30.4 inch high will then build across
Quebec on Sunday and Monday, while a deepening 29.4 inch low slowly
drifts north offshore of the Carolinas and to the southern mid-
Atlantic coastline.

LOZ062-100900-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EDT Thu Oct 9 2025

.OVERNIGHT...Southeast winds 5 to 10 knots becoming south.
Waves 1 foot or less.
.FRIDAY...South winds 5 to 15 knots. Waves 2 feet or less.
.FRIDAY NIGHT...South winds 10 to 15 knots. A chance of showers.
Waves 1 to 3 feet.
.SATURDAY...South winds 10 to 15 knots becoming east. A chance of
showers. Waves 1 to 2 feet.
.SATURDAY NIGHT...East winds 10 to 15 knots increasing to 15 to
20 knots. Showers likely. Waves 2 to 4 feet.
.SUNDAY...East winds 15 to 25 knots. Showers likely. Waves 3 to
6 feet building to 4 to 7 feet. Waves occasionally around 9 feet.
.MONDAY...East winds 15 to 20 knots becoming northeast 5 to
15 knots. A chance of showers. Waves 4 to 7 feet subsiding to
1 to 3 feet. Waves occasionally around 9 feet.
.TUESDAY...North winds 5 to 15 knots becoming northwest. A chance
of showers Tuesday night. Waves 2 feet or less.

$$

LOZ063>065-100900-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EDT Thu Oct 9 2025

.OVERNIGHT...East winds 5 to 10 knots becoming south. Waves
2 feet or less.
.FRIDAY...South winds 10 to 15 knots. Waves 1 to 3 feet.
.FRIDAY NIGHT...South winds 15 to 25 knots. A chance of showers
overnight. Waves 1 to 3 feet building to 3 to 5 feet.
.SATURDAY...South winds 15 to 20 knots becoming east 10 to
15 knots. A chance of showers. Waves 2 to 4 feet subsiding to
1 to 3 feet.
.SATURDAY NIGHT...East 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.
.SUNDAY...East winds 15 to 25 knots. A chance of showers during
the day, then showers likely Sunday night. Waves 2 to 4 feet
building to 4 to 7 feet. Waves occasionally around 9 feet.
.MONDAY...Northeast winds 15 to 25 knots diminishing to 10 to
15 knots. Showers likely during the day, then a chance of showers
Monday night. Waves 4 to 7 feet subsiding to 1 to 3 feet. Waves
occasionally around 9 feet.
.TUESDAY...North winds 5 to 15 knots becoming northwest. A chance
of showers. Waves 1 to 3 feet.

$$

LOZ061-100900-
MAFOR 1003/
ONTARIO WEST 1/2 12300 13400 11310 12410. A chance of showers
Friday evening. Waves 2 feet or less.

ONTARIO EAST 1/2 12300 14410 11410 11420. Waves 2 feet or less
overnight. Waves 1 to 3 feet Friday. Waves 1 to 3 feet building
to 3 to 5 feet Friday evening.

$$