FZUS61 KBUF 220803
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
403 AM EDT Wed Apr 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 weak 29.4 inch low will cross the area tonight, and in
the process drag an attendant cold front across the Lake. A 30.1
inch high will then build across the Great Lakes region Wednesday
and Thursday. A warm front will approach the Lake by Friday. A 29.7
inch low will move southwest of the Lake on Saturday, followed by a
30.2 inch high building across the Lake Saturday night and Sunday.

LOZ062-221500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
403 AM EDT Wed Apr 22 2026

.TODAY...North winds less than 10 knots becoming southwest. Waves
1 foot or less.
.TONIGHT...West winds 10 knots or less becoming north. Waves
1 foot or less.
.THURSDAY...North winds less than 10 knots becoming southeast.
Waves 1 foot or less.
.THURSDAY NIGHT...East winds 10 knots or less increasing to 10 to
15 knots. Waves 2 feet or less.
.FRIDAY...East winds 15 to 20 knots. A chance of rain showers
Friday night. Waves 1 to 3 feet building to 2 to 4 feet.
.SATURDAY...East winds 15 to 20 knots becoming northeast 10 to
15 knots. A chance of showers. Waves 3 to 6 feet subsiding to
2 to 3 feet.
.SUNDAY...Northeast winds 5 to 15 knots becoming east. Waves 1 to
3 feet subsiding to 1 foot or less.

$$

LOZ063>065-221500-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
403 AM EDT Wed Apr 22 2026

.TODAY...Southeast winds 5 to 15 knots becoming west less than
10 knots. Waves 2 feet or less.
.TONIGHT...West winds 10 knots or less becoming north. Waves
1 foot or less.
.THURSDAY...North winds 5 to 10 knots becoming southwest. Waves
1 foot or less.
.THURSDAY NIGHT...Southwest winds 10 knots or less becoming
northeast. Waves 1 foot or less.
.FRIDAY...Northeast winds 5 to 15 knots becoming east. Waves 1 to
3 feet.
.SATURDAY...East winds 15 to 20 knots becoming southeast 10 to
15 knots. A chance of showers. Waves 2 to 4 feet subsiding to
1 to 3 feet.
.SUNDAY...West winds 5 to 15 knots becoming northeast 10 knots or
less. Waves 2 feet or less.

$$

LOZ061-221500-
MAFOR 2209/
ONTARIO WEST 1/2 11300 11700 13600 13700. Waves 1 foot or less.

ONTARIO EAST 1/2 11310 11410 11500 14600 11800. Waves 1 to 3 feet
subsiding to 1 foot or less today. Waves 1 foot or less tonight.

$$