387
FZUS61 KBUF 241402
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 AM EDT Fri Apr 24 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 strong 30.7 inch high centered well to the north will
remain across the Lake through today. A 29.6 inch low over the upper
Great Lakes this morning will nudge a warm front toward the Lake as
it moves into the central Great Lakes this afternoon. This low will
slightly weaken to 29.7 inches as it passes just southwest of Lake
tonight while nudging the warm front a bit further east over the
Lake. The low then slide southeast into the mid Atlantic region
Saturday forcing the front back to the southwest of the Lake. A 30.2
inch area of high pressure will build across the lower Great Lakes
Saturday night through Monday. A 29.4 inch area of low pressure over
the Great Plains Monday night, will advance northeast into the upper
Great Lakes later Monday night into Tuesday morning while pushing an
attendant warm front across the Lake before heading northeast to
James Bay Tuesday night sending an attendant cold front across the
Lake.

LOZ062-242100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 AM EDT Fri Apr 24 2026

.THIS AFTERNOON...East winds 15 to 20 knots. Waves 2 to 4 feet.
.TONIGHT...East winds 15 to 25 knots. A chance of rain showers
after midnight. Rain showers likely late. Waves 2 to 4 feet
building to 3 to 6 feet.
.SATURDAY...East winds to 30 knots. Rain showers likely. Waves
5 to 9 feet. Waves occasionally around 11 feet.
.SATURDAY NIGHT...East winds 15 to 25 knots diminishing to 10 to
15 knots. A chance of showers in the evening. Waves 5 to 8 feet
subsiding to 1 to 3 feet. Waves occasionally around 10 feet.
.SUNDAY...Northeast winds 10 knots or less becoming east. Waves
2 feet or less.
.MONDAY...East winds 5 to 15 knots becoming southeast. Waves 1 to
3 feet.
.TUESDAY...Southeast winds 15 to 20 knots becoming southwest
10 to 15 knots. Showers likely. Waves 2 to 4 feet subsiding to
1 to 3 feet.

$$

LOZ063>065-242100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 AM EDT Fri Apr 24 2026

.THIS AFTERNOON...Northeast winds 5 to 15 knots. Waves 1 to
3 feet.
.TONIGHT...Northeast winds 5 to 15 knots becoming east 15 to
20 knots. A chance of rain showers late. Waves 1 to 3 feet
building to 2 to 4 feet.
.SATURDAY...East winds 15 to 25 knots. Showers likely. Waves 3 to
6 feet.
.SATURDAY NIGHT...East winds 15 to 20 knots diminishing to 5 to
15 knots. A chance of showers in the evening. Waves 3 to 5 feet
subsiding to 2 feet or less.
.SUNDAY...East winds 10 knots or less becoming northeast. Waves
1 foot or less.
.MONDAY...East winds 10 knots or less becoming southeast 10 to
15 knots. Waves 1 to 3 feet.
.TUESDAY...Southeast winds 15 to 20 knots becoming south. Showers
likely. Waves 2 to 4 feet subsiding to 1 to 3 feet.

$$

LOZ061-242100-
MAFOR 2415/
ONTARIO WEST 1/2 11220 11210 13220 12230 11246. Waves 2 to 4 feet
this afternoon. Waves 2 to 4 feet building to 3 to 6 feet
tonight. Waves 5 to 9 feet, and occasionally around 11 feet
Saturday morning.

ONTARIO EAST 1/2 13100 11110 11210 13220. A chance of showers
Saturday morning. Waves 1 to 3 feet this afternoon. Waves 1 to 3
feet building to 2 to 4 feet tonight. Waves 3 to 5 feet Saturday
morning.

$$