322
FZUS61 KBUF 110802
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EDT Fri Sep 11 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 high pressure ridge averaging 30.0 inches will
build from the western Great Lakes today, before exiting toward the
New England coast on Saturday. A warm front will sweep northeastward
across Lake Ontario Saturday evening through Saturday night before a
cold front sweeps eastward across Lake Ontario on Sunday. Behind the
cold front, a 30.1 inch ridge will slide eastward across the lake
through Monday. On Tuesday, the ridge should exit toward New England
and allow a warm front to sweep northeastward across Lake Ontario.

LOZ062-111500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EDT Fri Sep 11 2026

.TODAY...Northwest winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.TONIGHT...South winds 5 to 10 knots becoming southeast. Waves
1 foot or less.
.SATURDAY...Southeast winds 10 knots or less becoming east. Waves
1 foot or less.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots becoming
southwest. Waves 2 feet or less.
.SUNDAY...West winds 10 to 15 knots becoming northwest 15 to
20 knots. Waves 1 to 3 feet.
.MONDAY...North winds 5 to 15 knots becoming southeast. Waves
1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming west and
diminishing to around 10 knots. A chance of showers during the
day, then showers likely Tuesday night. Waves 1 to 3 feet
building to 2 to 4 feet, then subsiding to 1 to 3 feet.

$$

LOZ063>065-111500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
402 AM EDT Fri Sep 11 2026

.TODAY...North winds 5 to 10 knots becoming west. Waves 2 feet or
less.
.TONIGHT...West winds 10 knots or less becoming south. Waves
1 foot or less.
.SATURDAY...South winds 10 to 15 knots becoming southeast. Waves
1 to 3 feet.
.SATURDAY NIGHT...South winds 15 to 20 knots becoming southwest.
A chance of showers. Waves 1 to 3 feet building to 2 to 4 feet,
then subsiding to 1 to 3 feet.
.SUNDAY...Southwest winds 10 to 15 knots becoming northwest 15 to
20 knots. A chance of showers during the day. Waves 1 to 3 feet
building to 2 to 4 feet.
.MONDAY...North winds 5 to 15 knots becoming southeast 15 to
20 knots. Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 25 knots becoming southwest. A
chance of showers during the day, then showers likely Tuesday
night. Waves 3 to 5 feet subsiding to 1 to 3 feet.

$$

LOZ061-111500-
MAFOR 1109/
ONTARIO WEST 1/2 13700 11600 12400 12300. Waves 2 feet or less.

ONTARIO EAST 1/2 13800 11700 11600 11500 12400. Waves 1 to 3 feet
subsiding to 1 foot or less today. Waves 1 foot or less tonight.

$$