136
FZUS61 KBUF 221502
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 AM EST Sat Nov 22 2025

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 30.1 inch high will build over the Ohio Valley and
lower Great Lakes today. A 29.5 inch low will move from northern
Ontario to James Bay Sunday, sending its cold front across the lake
through the afternoon hours. A 30.2 inch high is then forecast to
build across the Ohio Valley Monday. On Tuesday a 29.5 inch low to
the north of Lake Superior will swing a cold front across the Lake
by Tuesday night. The surface low will then track well north of the
lake through Wednesday.

LOZ062-222200-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 AM EST Sat Nov 22 2025

.THIS AFTERNOON...Northwest winds 5 to 15 knots. Waves 2 feet or
less.
.TONIGHT...West winds 5 to 15 knots becoming southwest. A chance
of rain showers late. Waves 2 feet or less.
.SUNDAY...Southwest winds 15 to 25 knots becoming west. A chance
of rain showers. Waves 1 to 3 feet building to 5 to 8 feet. Waves
occasionally around 10 feet.
.SUNDAY NIGHT...West winds to 30 knots becoming northwest and
diminishing to 10 to 15 knots. A chance of showers in the
evening. Waves 5 to 8 feet subsiding to 3 to 5 feet. Waves
occasionally around 10 feet.
.MONDAY...West winds 5 to 15 knots becoming south. Waves 1 to
3 feet subsiding to 1 foot or less.
.TUESDAY...Southeast winds 5 to 15 knots becoming southwest.
Showers. Waves 1 to 3 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming west and
increasing to 30 knots. A chance of rain showers during the day,
then a chance of rain and snow showers Wednesday night. Waves
3 to 5 feet building to 8 to 11 feet. Waves occasionally around
14 feet.

$$

LOZ063-222200-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
1002 AM EST Sat Nov 22 2025

.THIS AFTERNOON...Northwest winds 10 to 15 knots. Waves 1 to
2 feet.
.TONIGHT...Northwest winds 5 to 15 knots becoming southwest.
Waves 1 to 2 feet.
.SUNDAY...Southwest winds 15 to 25 knots becoming west to
30 knots. Rain showers likely. Waves 1 to 3 feet building to 6 to
9 feet. Waves occasionally around 11 feet.
.SUNDAY NIGHT...West winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. Showers likely in the evening,
then a chance of showers overnight. Waves 7 to 11 feet subsiding
to 4 to 7 feet. Waves occasionally around 14 feet.
.MONDAY...Northwest winds 15 to 20 knots becoming south 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots. Showers. Waves 1 to
3 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming west and
increasing to 30 knots. Rain showers likely during the day, then
rain showers likely with a chance of snow showers Wednesday
night. Waves 2 to 4 feet building to 7 to 11 feet. Waves
occasionally around 14 feet.

$$

LOZ064-065-222200-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
1002 AM EST Sat Nov 22 2025

.THIS AFTERNOON...North winds 10 to 15 knots becoming northwest.
Waves 1 to 3 feet.
.TONIGHT...Northwest winds 5 to 15 knots becoming southwest.
Waves 2 feet or less.
.SUNDAY...South winds 15 to 25 knots becoming west to 30 knots.
Rain showers. Waves 1 to 3 feet building to 6 to 9 feet. Waves
occasionally around 11 feet.
.SUNDAY NIGHT...West winds to 30 knots becoming northwest 15 to
25 knots. Rain showers in the evening, then a chance of rain
showers overnight. Waves 8 to 11 feet subsiding to 4 to 7 feet.
Waves occasionally around 14 feet.
.MONDAY...Northwest winds 15 to 20 knots becoming south 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.TUESDAY...Southeast winds 15 to 20 knots becoming south.
Showers. Waves 1 to 3 feet building to 2 to 4 feet.
.WEDNESDAY...Southwest winds 15 to 20 knots becoming west and
increasing to 30 knots. Rain showers. Waves 3 to 5 feet building
to 8 to 12 feet. Waves occasionally around 15 feet.

$$

LOZ061-222200-
MAFOR 2216/
ONTARIO WEST 1/2 11710 11700 12600 11500 12510 11520. A chance of
rain showers Sunday morning. Waves 2 feet or less this afternoon
and tonight. Waves 1 to 3 feet building to 3 to 5 feet Sunday
morning.

ONTARIO EAST 1/2 12710 12700 12500 11510 11526. Waves 2 feet or
less this afternoon and tonight. Waves 1 to 3 feet building to 2
to 4 feet Sunday morning.

$$