254
FZUS61 KBUF 022102
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EST Tue Dec 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... A 29.3 inch surface low off the Northeast coast this
evening will deepen to 28.9 inches over southern Atlantic Canada by
early Wednesday morning before going out to sea. A 30.2 inch surface
high will build across the Ohio Valley and Lower Great Lakes later
Wednesday into Thursday morning before pushing off the coast. A
large 29.2 inch surface low near Hudson Bay will push its cold front
across the lake Wednesday night, with another 30.4 inch high
building in its wake Thursday night. The high will then quickly move
east of the lake Friday. Another cold front will cross the Lake late
Saturday and Saturday night, this from a 29.3 inch low near northern
James Bay. Then, another area of surface high pressure averaging
30.3 inches will build eastward across the Great Lakes through
Sunday.

LOZ062-030400-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EST Tue Dec 2 2025

.TONIGHT...North winds 5 to 15 knots becoming west. Waves 1 to
3 feet subsiding to 1 foot or less.
.WEDNESDAY...Southwest winds 10 to 15 knots increasing to
30 knots. A chance of snow showers late. Waves 1 to 2 feet
building to 5 to 8 feet. Waves occasionally around 10 feet.
.WEDNESDAY NIGHT...Southwest winds to 30 knots becoming west.
Lake effect snow showers. Waves 6 to 9 feet. Waves occasionally
around 11 feet.
.THURSDAY...West winds to 30 knots becoming northwest. Lake
effect snow showers likely. Waves 6 to 10 feet. Waves
occasionally around 13 feet.
.THURSDAY NIGHT...Northwest winds 15 to 20 knots becoming
southwest 10 to 15 knots. A chance of snow showers in the
evening. Waves 4 to 7 feet subsiding to 2 to 3 feet. Waves
occasionally around 9 feet.
.FRIDAY...Southwest winds 15 to 25 knots. A chance of snow
showers Friday night. Waves 3 to 6 feet subsiding to 2 to 4 feet.
.SATURDAY...Southwest winds 15 to 20 knots becoming northwest. A
chance of snow showers. Waves 3 to 6 feet.
.SUNDAY...Northwest winds 10 to 15 knots becoming north. A chance
of snow showers. Waves 1 to 3 feet.

$$

LOZ063-030400-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
402 PM EST Tue Dec 2 2025

.TONIGHT...North winds 15 to 20 knots becoming west 5 to
15 knots. A chance of snow showers early. Waves 1 to 3 feet.
.WEDNESDAY...Southwest winds 10 to 15 knots increasing to 15 to
25 knots. A chance of snow showers early. Waves 1 to 3 feet
building to 3 to 6 feet.
.WEDNESDAY NIGHT...Southwest winds to 30 knots becoming west.
Lake effect snow showers in the evening, then lake effect snow
showers with lake effect rain showers likely overnight. Waves
4 to 7 feet building to 6 to 10 feet. Waves occasionally around
13 feet.
.THURSDAY...West winds to 30 knots becoming northwest. Lake
effect snow showers. Waves 8 to 11 feet building to 9 to 13 feet.
Waves occasionally around 16 feet.
.THURSDAY NIGHT...Northwest winds to 30 knots becoming southwest
and diminishing to 10 to 15 knots overnight. Waves 7 to 10 feet
subsiding to 2 to 3 feet. Waves occasionally around 13 feet.
.FRIDAY...South winds 15 to 20 knots becoming southwest. Waves
2 to 4 feet.
.SATURDAY...Southwest winds 15 to 20 knots becoming west. A
chance of snow showers. Waves 2 to 4 feet building to 4 to
7 feet, then subsiding to 3 to 6 feet. Waves occasionally around
9 feet.
.SUNDAY...Northwest winds 15 to 20 knots becoming north 10 to
15 knots. A chance of snow showers during the day. Waves 3 to
5 feet subsiding to 1 to 3 feet.

$$

LOZ064-065-030400-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
402 PM EST Tue Dec 2 2025

.TONIGHT...North winds 15 to 20 knots becoming northwest 5 to
15 knots. Waves 1 to 3 feet.
.WEDNESDAY...Southwest winds 5 to 15 knots increasing to 15 to
25 knots. A chance of snow showers in the morning. A chance of
snow showers late. Waves 1 foot or less building to 3 to 6 feet.
.WEDNESDAY NIGHT...Southwest winds to 30 knots becoming west.
Lake effect snow and rain showers. Waves 5 to 9 feet building to
7 to 11 feet. Waves occasionally around 14 feet.
.THURSDAY...West winds to 30 knots becoming northwest. Lake
effect snow showers. Waves 8 to 11 feet building to 9 to 13 feet.
Waves occasionally around 16 feet.
.THURSDAY NIGHT...Northwest winds to 30 knots becoming south and
diminishing to 10 to 15 knots overnight. A chance of snow showers
overnight. Waves 8 to 11 feet subsiding to 1 to 3 feet. Waves
occasionally around 14 feet.
.FRIDAY...South winds 15 to 25 knots becoming southwest. A chance
of snow showers. Waves 3 to 6 feet.
.SATURDAY...Southwest winds 15 to 25 knots becoming northwest.
Snow showers likely. Waves 3 to 6 feet building to 4 to 7 feet,
then subsiding to 3 to 6 feet. Waves occasionally around 9 feet.
.SUNDAY...Northwest winds 15 to 20 knots becoming north 10 to
15 knots. Snow showers likely during the day, then a chance of
snow showers Sunday night. Waves 3 to 5 feet subsiding to 1 to
3 feet.

$$

LOZ061-030400-
MAFOR 0222/
ONTARIO WEST 1/2 11810 19817 11800 11700 11600 11510 11520 11530
11540. Waves 1 to 3 feet subsiding to 1 foot or less tonight.
Waves 1 to 2 feet building to 5 to 8 feet, and occasionally
around 10 feet Wednesday.

ONTARIO EAST 1/2 11110 19117 11810 11800 11700 11610 11510 11520
11530. Waves 1 to 3 feet tonight. Waves 1 to 3 feet building to 3
to 6 feet Wednesday.

$$