653
FZUS61 KBUF 070902
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 AM EST Sun Dec 7 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 weak 30.0 inch surface low forming over the western
Lake Erie waters this morning will cross the lake this afternoon and
evening. Another 30.4 inch high will move across the region Monday
through Monday night, before moving off the east coast Tuesday. A
29.5 inch low will move across the Upper Great Lakes Tuesday, then a
stronger low averaging 29.3 inches will approach the region Tuesday
night and potentially move northwest of the Lake Wednesday. A 29.9
inch high is expected to move into the Great Lakes region Thursday.

LOZ062-071600-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 AM EST Sun Dec 7 2025

.TODAY...Southeast winds 5 to 15 knots becoming west 15 to
20 knots. A chance of snow early, then snow from late morning on.
Waves 2 feet or less building to 2 to 4 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming north. A
chance of snow showers early. Waves 3 to 5 feet.
.MONDAY...North winds 5 to 15 knots becoming west less than
10 knots. Waves 2 to 4 feet subsiding to 1 foot or less.
.MONDAY NIGHT...Southwest winds 5 to 15 knots becoming south.
Waves 2 feet or less.
.TUESDAY...Southwest gales to 35 knots diminishing to 15 to
25 knots. Snow and rain showers. Waves 4 to 7 feet building to
7 to 10 feet, then subsiding to 4 to 7 feet. Waves occasionally
around 13 feet.
.WEDNESDAY...South winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. Rain showers during the day, then
rain showers with a chance of snow showers Wednesday night. Waves
5 to 8 feet. Waves occasionally around 10 feet.
.THURSDAY...West winds 15 to 20 knots diminishing to 10 to
15 knots. A chance of snow showers. Waves 3 to 6 feet subsiding
to 2 to 4 feet.

$$

LOZ063-071600-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
402 AM EST Sun Dec 7 2025

.TODAY...East winds 5 to 15 knots becoming west 15 to 20 knots. A
chance of snow early, then snow from late morning on. Waves 1 to
3 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming north. A
chance of snow showers in the evening. Waves 3 to 6 feet.
.MONDAY...North winds 15 to 20 knots becoming northwest 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 foot or less.
.MONDAY NIGHT...West winds 5 to 15 knots becoming south 15 to
20 knots. Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 25 knots becoming southwest. Snow
showers likely during the day, then rain showers with snow
showers likely Tuesday night. Waves 3 to 5 feet building to 4 to
7 feet. Waves occasionally around 9 feet.
.WEDNESDAY...South winds to 30 knots becoming northwest. Rain
showers during the day, then rain showers with a chance of snow
showers Wednesday night. Waves 3 to 6 feet building to 6 to
9 feet. Waves occasionally around 11 feet.
.THURSDAY...West winds 15 to 25 knots. A chance of snow showers.
Waves 4 to 7 feet subsiding to 3 to 6 feet. Waves occasionally
around 9 feet.

$$

LOZ064-065-071600-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
402 AM EST Sun Dec 7 2025

.TODAY...Northeast winds 10 to 15 knots becoming northwest. Snow
from late morning on. Waves 1 to 3 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming north. Snow
likely early, then a chance of snow showers late in the evening.
Waves 3 to 6 feet.
.MONDAY...North winds 15 to 20 knots becoming northwest 5 to
15 knots. Waves 3 to 5 feet subsiding to 1 to 3 feet.
.MONDAY NIGHT...West winds 5 to 15 knots becoming south 15 to
20 knots. Waves 1 to 3 feet.
.TUESDAY...South gales to 35 knots becoming southwest. Snow
showers likely during the day, then rain and snow showers Tuesday
night. Waves 4 to 7 feet building to 7 to 10 feet, then subsiding
to 5 to 8 feet. Waves occasionally around 13 feet.
.WEDNESDAY...South winds to 30 knots becoming northwest. Rain and
snow showers. Waves 5 to 8 feet building to 6 to 9 feet. Waves
occasionally around 11 feet.
.THURSDAY...Northwest winds 15 to 25 knots. Snow showers likely
during the day, then a chance of snow showers Thursday night.
Waves 5 to 8 feet subsiding to 3 to 6 feet. Waves occasionally
around 10 feet.

$$

LOZ061-071600-
MAFOR 0710/
ONTARIO WEST 1/2 11100 11507 11617 11610 12720 12820. Waves 2
feet or less building to 2 to 4 feet today. Waves 3 to 6 feet
tonight.

ONTARIO EAST 1/2 11110 11310 11417 11617 11727 12720 11820. A
chance of snow showers this evening. Waves 1 to 3 feet today.
Waves 3 to 6 feet tonight.

$$