227
FZUS61 KBUF 040302
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1002 PM EST Mon Nov 3 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 30.3 inch high over the Mississippi Valley will
advance eastward across the Ohio Valley and mid-Atlantic states
Tuesday. An area of low pressure will pass to the west and north of
the Lake Wednesday, deepening from 29.8 inches down to 29.4 inches
through the day. Following this low, another 30.3 inch surface high
will reestablish over the lake for Thursday. The surface high will
then track east off the Atlantic Coast through Friday allowing for
another cold frontal passage. A 29.4 inch low near James Bay will
drag its cold front across the lake Friday night into Saturday.

LOZ062-041000-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1002 PM EST Mon Nov 3 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.OVERNIGHT...West winds to 30 knots. Waves 8 to 12 feet.
Waves occasionally around 15 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 3 to 6 feet subsiding to 1 to 3 feet.
.WEDNESDAY...South winds 15 to 20 knots becoming west and
increasing to 30 knots. Showers. Waves 1 to 3 feet building to
6 to 9 feet. Waves occasionally around 11 feet.
.WEDNESDAY NIGHT...Northwest winds to 30 knots. Showers. Waves
7 to 11 feet subsiding to 5 to 9 feet. Waves occasionally around
14 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming south 10 to
15 knots. Waves 3 to 6 feet subsiding to 1 to 2 feet.
.FRIDAY...South winds 15 to 25 knots becoming northwest to
30 knots. Showers. Waves 3 to 5 feet building to 4 to 7 feet.
Waves occasionally around 9 feet.
.SATURDAY...Northwest winds 15 to 20 knots becoming southeast
10 to 15 knots. A chance of showers during the day, then showers
likely Saturday night. Waves 3 to 6 feet subsiding to 1 to
2 feet.

$$

LOZ063>065-041000-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1002 PM EST Mon Nov 3 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST TUESDAY...

.OVERNIGHT...West gales to 35 knots becoming northwest and
diminishing to 30 knots. A chance of showers. Waves 10 to
15 feet. Waves occasionally around 19 feet.
.TUESDAY...Northwest winds to 30 knots becoming west. Waves 8 to
12 feet. Waves occasionally around 15 feet.
.TUESDAY NIGHT...West winds 15 to 20 knots becoming southwest
10 to 15 knots. A chance of showers overnight. Waves 6 to 9 feet
subsiding to 2 to 4 feet. Waves occasionally around 11 feet.
.WEDNESDAY...South winds 10 to 15 knots becoming southwest and
increasing to 30 knots in the afternoon. A chance of showers in
the morning, then showers in the afternoon. Waves 1 to 3 feet
building to 6 to 9 feet. Waves occasionally around 11 feet.
.WEDNESDAY NIGHT...West gales to 35 knots becoming northwest and
diminishing to 30 knots overnight. Showers. Waves 9 to 13 feet
subsiding to 8 to 11 feet. Waves occasionally around 16 feet.
.THURSDAY...Northwest winds 15 to 25 knots becoming south 15 to
20 knots. Showers likely during the day. Waves 6 to 9 feet
subsiding to 1 to 3 feet. Waves occasionally around 11 feet.
.FRIDAY...South winds to 30 knots becoming west. Showers. Waves
5 to 8 feet. Waves occasionally around 10 feet.
.SATURDAY...Northwest winds 15 to 25 knots becoming southeast and
diminishing to 5 to 15 knots. Rain showers. Waves 5 to 8 feet
subsiding to 1 to 3 feet. Waves occasionally around 10 feet.

$$

LOZ061-041000-
MAFOR 0404/
ONTARIO WEST 1/2...GALE WARNING IN EFFECT...11640 11740 14640
12620. Waves 9 to 13 feet, and occasionally around 16 feet
overnight. Waves 7 to 11 feet subsiding to 6 to 9 feet, and
occasionally around 14 feet Tuesday. Waves 4 to 7 feet subsiding
to 3 to 5 feet, and occasionally around 9 feet Tuesday evening.

ONTARIO EAST 1/2...GALE WARNING IN EFFECT...11650 12740 13640
11630 11620. Waves 10 to 15 feet, and occasionally around 19 feet
overnight. Waves 8 to 12 feet, and occasionally around 15 feet
Tuesday. Waves 6 to 9 feet subsiding to 4 to 7 feet, and
occasionally around 11 feet Tuesday evening.

$$