710
FZUS61 KBUF 011402
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 AM EDT Sat Nov 1 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 28.7 inch area of low pressure over the Gulf of Saint
Lawrence will exit farther eastward today. In its wake, a large 30.3
inch area of high pressure will build across the Ohio Valley and
lower Great Lakes region through Sunday, before sliding east and off
the mid-Atlantic coastline Monday. A cold front will slide east
across the lake later Monday and Monday night, with another 30.3
inch high over the Mississippi Valley then sliding eastward across
the Ohio Valley and mid-Atlantic states Tuesday and Wednesday.

LOZ062-012100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 AM EDT Sat Nov 1 2025

.THIS AFTERNOON...Northwest winds 15 to 20 knots. Waves 2 to
4 feet.
.TONIGHT...Northwest winds 5 to 15 knots. Waves 1 to 3 feet
subsiding to 1 foot or less.
.SUNDAY...Northwest winds 5 to 10 knots becoming southwest. Waves
1 foot or less.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots increasing to 15 to
20 knots. Waves 2 feet or less building to 2 to 4 feet.
.MONDAY...Southwest winds to 30 knots becoming west. Showers.
Waves 5 to 8 feet building to 7 to 11 feet, then subsiding to
6 to 9 feet. Waves occasionally around 14 feet.
.TUESDAY...West winds to 30 knots diminishing to 15 to 25 knots.
Waves 5 to 9 feet subsiding to 3 to 5 feet. Waves occasionally
around 11 feet.
.WEDNESDAY...Southwest winds 10 to 15 knots becoming west and
increasing to 15 to 25 knots. A chance of showers during the day,
then showers likely Wednesday night. Waves 1 to 3 feet building
to 4 to 7 feet. Waves occasionally around 9 feet.

$$

LOZ063>065-012100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 AM EDT Sat Nov 1 2025

.THIS AFTERNOON...Northwest winds 15 to 20 knots. Waves 4 to
7 feet subsiding to 3 to 6 feet. Waves occasionally around
9 feet.
.TONIGHT...Northwest winds 15 to 20 knots diminishing to 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.SUNDAY...Northwest winds 5 to 10 knots becoming southwest. A
chance of showers in the morning. Waves 1 foot or less.
.SUNDAY NIGHT...Southwest winds 5 to 15 knots becoming south
15 to 20 knots. Waves 2 feet or less building to 2 to 4 feet.
.MONDAY...Southwest gales to 35 knots becoming west and
diminishing to 30 knots. Showers. Waves 3 to 6 feet building to
9 to 12 feet. Waves occasionally around 15 feet.
.TUESDAY...West winds to 30 knots diminishing to 15 to 20 knots.
A chance of showers. Waves 8 to 12 feet subsiding to 4 to 7 feet.
Waves occasionally around 15 feet.
.WEDNESDAY...Southwest winds 10 to 15 knots becoming west and
increasing to 15 to 25 knots. Showers. Waves 2 to 4 feet building
to 5 to 8 feet. Waves occasionally around 10 feet.

$$

LOZ061-012100-
MAFOR 0115/
ONTARIO WEST 1/2 12720 12710 14700. Waves 3 to 5 feet subsiding
to 2 to 4 feet this afternoon. Waves 2 to 4 feet subsiding to 1
foot or less tonight. Waves 1 foot or less Sunday morning.

ONTARIO EAST 1/2 13720 12710 13700. Waves 4 to 7 feet subsiding
to 3 to 6 feet, and occasionally around 9 feet this afternoon.
Waves 3 to 5 feet subsiding to 1 to 3 feet tonight. Waves 1 foot
or less Sunday morning.

$$