542
FZUS61 KBUF 221403
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 AM EDT Wed Jul 22 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 30.2 inch high will build across the region through Friday. The
high will move off the east coast Saturday. A 29.7 inch low will
approach from the northwest through Sunday.

LOZ062-222100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 AM EDT Wed Jul 22 2026

.REST OF TODAY...West winds 15 to 25 knots. Waves 4 to 7 feet
subsiding to 3 to 6 feet. Waves occasionally around 9 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming west 10 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.THURSDAY...West winds 5 to 10 knots becoming southwest. Waves
1 to 2 feet.
.THURSDAY NIGHT...Southwest winds 10 knots or less. Waves 1 foot
or less.
.FRIDAY...South winds 10 knots or less becoming southeast. Waves
1 foot or less.
.SATURDAY...South winds 10 knots or less becoming southwest.
Waves 1 foot or less.
.SUNDAY...Southwest winds 5 to 15 knots becoming west. A chance
of showers. Waves 2 feet or less.

$$

LOZ063>065-222100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 AM EDT Wed Jul 22 2026

.REST OF TODAY...West winds to 30 knots. A chance of showers late
this morning. Waves 5 to 9 feet. Waves occasionally around
11 feet.
.TONIGHT...West winds 15 to 25 knots diminishing to 5 to
10 knots. Waves 5 to 8 feet subsiding to 1 to 2 feet. Waves
occasionally around 10 feet.
.THURSDAY...West winds 10 to 15 knots. Waves 1 to 3 feet.
.THURSDAY NIGHT...West winds 5 to 10 knots becoming southwest.
Waves 2 feet or less.
.FRIDAY...South winds 10 knots or less becoming southeast. Waves
1 foot or less.
.SATURDAY...South winds 5 to 15 knots. Waves 2 feet or less.
.SUNDAY...Southwest winds 5 to 15 knots. A chance of showers.
Waves 2 feet or less.

$$

LOZ061-222100-
MAFOR 2215/
ONTARIO WEST 1/2 12630 11620 12710 13600. Waves 4 to 7 feet, and
occasionally around 9 feet this afternoon. Waves 3 to 6 feet
subsiding to 1 to 2 feet tonight. Waves 1 to 2 feet Thursday
morning.

ONTARIO EAST 1/2 13630 11720 11710 12600 11610. Waves 5 to 9
feet, and occasionally around 11 feet this afternoon. Waves 5 to
8 feet subsiding to 1 to 2 feet, and occasionally around 10 feet
tonight. Waves 1 to 2 feet Thursday morning.

$$