355
FZUS61 KBUF 300801
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
401 AM EDT Fri Oct 30 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 30.4 inch high will settle over the lower Great
Lakes tonight. This high will then drift to the eastern seaboard
Tuesday, then east of the Mid Atlantic coast by Wednesday.
Meanwhile, a 29.3 inch low over far northwest Ontario province
Tuesday night will move to Hudson Bay by late Wednesday, then to
northern Quebec by Thursday while deepening to 29.0 inches. A
trailing cold front will cross the lower Great Lakes Wednesday
night, with a 30.0 inch high building east across the eastern
Great Lakes region Thursday through Friday, before sliding east
into New England by Saturday.

LOZ062-301500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
401 AM EDT Fri Oct 30 2026

.TODAY...Northwest winds 15 to 20 knots. Waves 3 to 5 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming north 5 to
15 knots. Waves 2 to 4 feet subsiding to 1 to 3 feet.
.SATURDAY...Northwest winds less than 10 knots becoming west.
Waves 1 foot or less.
.SATURDAY NIGHT...Southwest winds less than 10 knots becoming
south. Waves 1 foot or less.
.SUNDAY...South winds 10 knots or less becoming southwest. Waves
1 foot or less.
.MONDAY...Southwest winds 10 knots or less becoming south. Waves
1 foot or less.
.TUESDAY...Southeast winds 5 to 10 knots becoming south. A chance
of showers during the day. Waves 2 feet or less.

$$

LOZ063>065-301500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
401 AM EDT Fri Oct 30 2026

.TODAY...Northwest winds 15 to 20 knots. Waves 3 to 6 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming north 10 to
15 knots. Waves 3 to 6 feet subsiding to 2 to 4 feet.
.SATURDAY...North winds 10 knots or less becoming west. Waves
2 feet or less.
.SATURDAY NIGHT...West winds 5 to 10 knots becoming south. Waves
1 foot or less.
.SUNDAY...South winds 5 to 10 knots becoming southwest. Waves
2 feet or less.
.MONDAY...Southwest winds 10 knots or less becoming south. Waves
2 feet or less.
.TUESDAY...Southeast winds 5 to 15 knots becoming south 15 to
20 knots. A chance of showers Tuesday night. Waves 1 to 3 feet.

$$

LOZ061-301500-
MAFOR 3009/
ONTARIO WEST 1/2 12720 11620 13720 11710 11800. Waves 3 to 5 feet
today. Waves 3 to 5 feet subsiding to 1 to 3 feet tonight.

ONTARIO EAST 1/2 13720 11620 12720 11820 11810. Waves 3 to 6 feet
today. Waves 3 to 6 feet subsiding to 2 to 4 feet tonight.

$$