FZUS61 KBUF 101411
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1011 AM EDT Fri Apr 10 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 front will stall just south of the lake today before
moving off the New England coast Saturday. A 30.5 inch high will
then build into the central Great Lakes Saturday, then drift east to
New England by Sunday. A 29.4 inch low will then move from near Lake
Superior Sunday night to northern Quebec Monday, with a trailing
cold front stalling north of the lake Monday through Tuesday.

LOZ062-102100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1011 AM EDT Fri Apr 10 2026

.THIS AFTERNOON...Northeast winds 5 to 10 knots becoming north.
Rain showers. Waves 1 to 2 feet.
.TONIGHT...Northwest winds 5 to 15 knots. A chance of rain
showers early. Waves 1 to 2 feet.
.SATURDAY...Northwest winds 5 to 10 knots becoming southwest.
Waves 2 feet or less.
.SATURDAY NIGHT...Southwest winds 10 knots or less becoming
southeast. Waves 1 foot or less.
.SUNDAY...Southeast winds 5 to 15 knots becoming southwest and
increasing to 15 to 25 knots. Rain showers likely. Waves 1 to
3 feet building to 3 to 6 feet.
.MONDAY...Southwest winds 15 to 25 knots diminishing to 10 to
15 knots. A chance of showers. Waves 4 to 7 feet subsiding to
2 to 4 feet. Waves occasionally around 9 feet.
.TUESDAY...South winds 15 to 20 knots. Showers likely. Waves 2 to
4 feet.

$$

LOZ063>065-102100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1011 AM EDT Fri Apr 10 2026

.THIS AFTERNOON...Northeast winds 5 to 15 knots becoming north.
Rain showers. Waves 2 feet or less.
.TONIGHT...Northwest winds 5 to 15 knots. Rain showers likely
early, then a chance of rain showers late in the evening. Waves
2 feet or less.
.SATURDAY...Northwest winds 10 to 15 knots becoming west. Waves
1 to 3 feet.
.SATURDAY NIGHT...West winds 10 knots or less becoming southeast.
Waves 2 feet or less.
.SUNDAY...Southeast winds 5 to 15 knots becoming south and
increasing to 15 to 25 knots. Rain showers likely. Waves 2 feet
or less building to 4 to 7 feet. Waves occasionally around
9 feet.
.MONDAY...Southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. Showers likely during the day,
then a chance of showers Monday night. Waves 4 to 7 feet
subsiding to 3 to 5 feet. Waves occasionally around 9 feet.
.TUESDAY...Southeast winds 10 to 15 knots becoming south 15 to
20 knots. Showers likely. Waves 1 to 3 feet.

$$

LOZ061-102100-
MAFOR 1015/
ONTARIO WEST 1/2 11106 11806 12700 13710 11700. Waves 1 to 2
feet.

ONTARIO EAST 1/2 11110 11816 11716 14710 11710. Waves 2 feet or
less this afternoon and tonight. Waves 1 to 3 feet Saturday
morning.

$$