597
FZUS61 KBUF 022003
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
403 PM EDT Fri Oct 2 2026

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 30.3 inch high will build east across the lower Great
Lakes region through Saturday, before sliding northeast into
northern New England Saturday night. A 29.7 inch low over
northwestern Ontario Sunday will deepen to 29.4 inches as it slides
just south of James Bay into central Quebec Sunday night, while
sending a pair of cold fronts across the Lake. A 30.2 inch high over
the upper Midwest will then build across the Great Lakes region
Monday into Tuesday, before sliding into the Northeast Wednesday.

LOZ062-030300-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
403 PM EDT Fri Oct 2 2026

.TONIGHT...Northwest winds 15 to 20 knots becoming north 10 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SATURDAY...Northeast winds 10 knots or less becoming east. Waves
2 feet or less.
.SATURDAY NIGHT...East winds 5 to 15 knots becoming southeast.
Waves 2 feet or less.
.SUNDAY...Southeast winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.SUNDAY NIGHT...Southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. Waves 1 to 3 feet building to 3 to 5 feet.
.MONDAY...Northwest winds 15 to 25 knots. Waves 3 to 6 feet
subsiding to 2 to 4 feet.
.TUESDAY...Northwest winds 5 to 10 knots becoming southwest.
Waves 2 feet or less.
.WEDNESDAY...Southwest winds 10 to 15 knots. Waves 1 to 3 feet.

$$

LOZ063>065-030300-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
403 PM EDT Fri Oct 2 2026

.TONIGHT...Northwest winds 15 to 20 knots becoming northeast.
Waves 3 to 6 feet subsiding to 2 to 4 feet.
.SATURDAY...Northeast winds 5 to 15 knots diminishing to less
than 10 knots. Waves 1 to 3 feet subsiding to 1 foot or less.
.SATURDAY NIGHT...Northeast winds 5 to 15 knots becoming
southeast. Waves 2 feet or less.
.SUNDAY...Southeast winds 15 to 20 knots becoming south 10 to
15 knots. Waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet.
.SUNDAY NIGHT...South winds 15 to 20 knots becoming west. A
chance of showers overnight. Waves 1 to 3 feet building to 3 to
6 feet.
.MONDAY...Northwest winds to 30 knots diminishing to 15 to
20 knots. Waves 5 to 8 feet subsiding to 3 to 6 feet. Waves
occasionally around 10 feet.
.TUESDAY...Northwest winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. Waves 2 to 4 feet subsiding to 1 to
2 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots. Waves 1 to 3 feet
building to 2 to 4 feet.

$$

LOZ061-030300-
MAFOR 0221/
ONTARIO WEST 1/2 12720 11820 11810 11110 11100 12200. Waves 2 to
4 feet building to 3 to 5 feet, then subsiding to 1 to 3 feet
tonight. Waves 1 to 3 feet subsiding to 1 foot or less Saturday.

ONTARIO EAST 1/2 11620 11720 12820 11110 13100. Waves 3 to 6 feet
subsiding to 2 to 4 feet tonight. Waves 1 to 3 feet subsiding to
1 foot or less Saturday.

$$