660
FZUS61 KBUF 090802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM 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
today to off the New England coastline later 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.

LOZ062-091500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Thu Oct 9 2025

.TODAY...Northeast winds 5 to 15 knots becoming east. Waves 2 to
4 feet subsiding to 1 to 2 feet.
.TONIGHT...East winds 5 to 15 knots becoming south. Waves 2 feet
or less.
.FRIDAY...South winds 5 to 10 knots becoming southeast. Waves
2 feet or less.
.FRIDAY NIGHT...Southeast winds 5 to 15 knots becoming south. A
chance of showers overnight. Waves 2 feet or less.
.SATURDAY...South winds 10 to 15 knots becoming southeast. A
chance of showers. Waves 1 to 3 feet.
.SUNDAY...East winds 15 to 20 knots. A chance of showers. Waves
2 to 4 feet building to 3 to 6 feet.
.MONDAY...East winds 15 to 20 knots becoming northeast 10 to
15 knots. A chance of showers during the day. Waves 3 to 6 feet
subsiding to 1 to 3 feet.

$$

LOZ063>065-091500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Thu Oct 9 2025

.TODAY...Northeast winds 15 to 20 knots diminishing to 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.TONIGHT...Northeast winds 5 to 15 knots becoming south. Waves
2 feet or less.
.FRIDAY...South winds 5 to 15 knots. Waves 2 feet or less.
.FRIDAY NIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots. Waves 2 feet or less building to 2 to 4 feet.
.SATURDAY...South winds 15 to 20 knots becoming southeast. A
chance of showers Saturday night. Waves 2 to 4 feet subsiding to
1 to 3 feet.
.SUNDAY...Southeast winds 15 to 20 knots becoming east. A chance
of showers. Waves 2 to 4 feet building to 3 to 6 feet.
.MONDAY...Northeast winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of showers. Waves 3 to 6 feet subsiding to
1 to 3 feet.

$$

LOZ061-091500-
MAFOR 0909/
ONTARIO WEST 1/2 13110 13200 11310 11410. Waves 3 to 5 feet
subsiding to 1 to 3 feet today. Waves 2 feet or less tonight.

ONTARIO EAST 1/2 11120 12110 12100 11200 11300 11410. Waves 3 to
5 feet subsiding to 1 to 3 feet today. Waves 2 feet or less
tonight.

$$