947
FZUS61 KBUF 030302
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EST Sun Nov 2 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...30.3 inch high pressure will build east of the region
tonight before continuing east and off the mid-Atlantic coastline on
Monday. A cold front will then push east across the lake later
Monday and Monday night, with another 30.3 inch high over the
Mississippi Valley advancing eastward across the Ohio Valley and mid-
Atlantic states Tuesday and Wednesday. A weak cold front will drop
across the lake Wednesday night with another 30.3 inch surface high
reestablishing over the lake for Thursday. The surface high will
then track east off the Atlantic Coast through Friday.

LOZ062-031000-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EST Sun Nov 2 2025

...GALE WATCH IN EFFECT FROM 9 AM EST MONDAY THROUGH LATE MONDAY
NIGHT...

.OVERNIGHT...Southwest winds 10 to 15 knots increasing to
15 to 20 knots. Waves 1 to 3 feet building to 3 to 5 feet.
.MONDAY...Southwest winds to 30 knots becoming west and
increasing to 35 knot gales. Showers from late morning on. Waves
4 to 7 feet building to 11 to 16 feet. Waves occasionally around
20 feet.
.MONDAY NIGHT...West gales to 35 knots diminishing to 30 knots
overnight. A chance of showers. Waves 10 to 14 feet subsiding to
7 to 11 feet. Waves occasionally around 18 feet.
.TUESDAY...West winds to 30 knots. Waves 6 to 10 feet. Waves
occasionally around 13 feet.
.TUESDAY NIGHT...West winds 15 to 20 knots becoming southwest
10 to 15 knots. Waves 4 to 7 feet subsiding to 2 to 4 feet. Waves
occasionally around 9 feet.
.WEDNESDAY...Southwest winds 15 to 25 knots becoming northwest.
Showers. Waves 1 to 3 feet building to 4 to 7 feet. Waves
occasionally around 9 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming southwest
10 to 15 knots. Waves 3 to 6 feet subsiding to 1 to 3 feet.
.FRIDAY...South winds 15 to 25 knots becoming west. Showers.
Waves 2 to 4 feet building to 3 to 6 feet.

$$

LOZ063>065-031000-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EST Sun Nov 2 2025

...GALE WATCH IN EFFECT FROM 9 AM EST MONDAY THROUGH LATE MONDAY
NIGHT...

.OVERNIGHT...South winds 15 to 20 knots becoming southwest.
Waves 1 to 3 feet building to 3 to 5 feet.
.MONDAY...Southwest winds 15 to 25 knots becoming west and
increasing to 35 knot gales in the afternoon. A chance of showers
late in the morning. Showers in the afternoon. Waves 3 to 6 feet
building to 12 to 17 feet. Waves occasionally around 22 feet.
.MONDAY NIGHT...West gales to 35 knots diminishing to 30 knots
overnight. Showers likely. Waves 12 to 16 feet subsiding to 10 to
14 feet. Waves occasionally around 20 feet.
.TUESDAY...West winds to 30 knots. A chance of showers in the
morning. Waves 9 to 13 feet. Waves occasionally around 16 feet.
.TUESDAY NIGHT...West winds 15 to 25 knots becoming southwest and
diminishing to 10 to 15 knots. Waves 7 to 10 feet subsiding to
3 to 6 feet. Waves occasionally around 13 feet.
.WEDNESDAY...South winds 15 to 25 knots becoming northwest to
30 knots. Showers. Waves 2 to 4 feet building to 6 to 9 feet.
Waves occasionally around 11 feet.
.THURSDAY...Northwest winds 15 to 25 knots becoming southwest
15 to 20 knots. A chance of showers during the day. Waves 5 to
8 feet subsiding to 1 to 3 feet. Waves occasionally around
10 feet.
.FRIDAY...South winds 15 to 25 knots becoming west to 30 knots.
Showers. Waves 3 to 5 feet building to 4 to 7 feet. Waves
occasionally around 9 feet.

$$

LOZ061-031000-
MAFOR 0304/
ONTARIO WEST 1/2 11510 11520 11530 11540 11556 12650 11640. Waves
1 to 3 feet building to 3 to 5 feet overnight. Waves 4 to 7 feet
building to 12 to 16 feet, and occasionally around 20 feet
Monday. Waves 11 to 15 feet subsiding to 9 to 12 feet, and
occasionally around 19 feet Monday evening.

ONTARIO EAST 1/2 11420 11520 11530 11540 11556 12650 11646. Waves
1 to 3 feet building to 3 to 5 feet overnight. Waves 3 to 6 feet
building to 13 to 17 feet, and occasionally around 22 feet
Monday. Waves 12 to 16 feet subsiding to 10 to 14 feet, and
occasionally around 20 feet Monday evening.

$$