458
FZUS61 KBUF 090802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Sat May 9 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 30.1 inch high will drift off the Mid Atlantic coast
through tonight. A weak 29.5 inch low will then move from the upper
Great Lakes Saturday to western Quebec by early Sunday before moving
to northern Quebec early Monday. Meanwhile, a trailing cold front
will cross the lake Sunday night. A 30.4 inch high will then build
from the upper Great Lakes Monday to the lower Great Lakes by
Tuesday.

LOZ062-091500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Sat May 9 2026

.TODAY...Southeast winds 10 knots or less increasing to 10 to
15 knots. Waves 2 feet or less.
.TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to
15 knots. A chance of showers in the evening. Waves 1 to 3 feet.
.SUNDAY...West winds around 10 knots. Waves 1 to 2 feet.
.SUNDAY NIGHT...West winds 5 to 10 knots becoming northwest.
Waves 1 to 2 feet.
.MONDAY...West winds 5 to 10 knots becoming northwest. Waves
2 feet or less.
.TUESDAY...West winds 5 to 15 knots becoming southeast. Rain
showers likely Tuesday night. Waves 2 feet or less.
.WEDNESDAY...Southeast winds 15 to 20 knots becoming north 10 to
15 knots. Showers likely during the day, then a chance of showers
Wednesday night. Waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet.

$$

LOZ063>065-091500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Sat May 9 2026

.TODAY...Southeast winds 5 to 15 knots. Waves 2 feet or less.
.TONIGHT...South winds 10 to 15 knots becoming west. A chance of
showers early, then showers late in the evening. A chance of
showers after midnight. Waves 1 to 3 feet.
.SUNDAY...West winds 10 to 15 knots increasing to 15 to 20 knots.
Waves 1 to 3 feet building to 2 to 4 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots. Waves 1 to 3 feet.
.MONDAY...West winds 5 to 15 knots becoming northwest. Waves 1 to
3 feet.
.TUESDAY...Northwest winds 5 to 15 knots becoming southeast. A
chance of rain showers Tuesday night. Waves 2 feet or less.
.WEDNESDAY...Southeast winds 10 to 15 knots. Showers likely.
Waves 1 to 3 feet.

$$

LOZ061-091500-
MAFOR 0909/
ONTARIO WEST 1/2 11400 11300 11200 11310 11410 12510 11610. A
chance of showers this evening. Waves 2 feet or less today. Waves
1 to 3 feet tonight.

ONTARIO EAST 1/2 12310 12300 11310 11516 12510. Waves 2 feet or
less today. Waves 1 to 3 feet tonight.

$$