742
FZUS61 KBUF 082102
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
402 PM EST Mon Dec 8 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 30.4 inch high over the Lake this evening, will move
east and 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, followed by a 29.6
inch low which may approach the lake from the northwest late Friday.
30.0 inches will average across the Lower Great Lakes region
Saturday.

LOZ062-090400-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
402 PM EST Mon Dec 8 2025

.TONIGHT...Southwest winds 5 to 15 knots becoming south. Waves
2 feet or less.
.TUESDAY...South winds 15 to 25 knots increasing to 30 knots.
Snow showers in the afternoon. Waves 1 to 2 feet building to 4 to
7 feet. Waves occasionally around 9 feet.
.TUESDAY NIGHT...Southwest winds 15 to 25 knots becoming south.
Rain and snow. Waves 4 to 7 feet subsiding to 3 to 5 feet. Waves
occasionally around 9 feet.
.WEDNESDAY...South winds 15 to 25 knots becoming west. Rain and
snow in the morning, then rain in the afternoon. Waves 2 to
4 feet building to 4 to 7 feet. Waves occasionally around 9 feet.
.WEDNESDAY NIGHT...Northwest winds 20 to 25 knots. Rain with snow
likely in the evening, then snow likely overnight. Waves 5 to
8 feet. Waves occasionally around 10 feet.
.THURSDAY...West winds 15 to 25 knots. Snow showers likely during
the day, then a chance of snow showers Thursday night. Waves 4 to
7 feet. Waves occasionally around 9 feet.
.FRIDAY...West winds 15 to 20 knots. A chance of snow showers
during the day, then snow showers likely Friday night. Waves 3 to
5 feet.
.SATURDAY...West winds 15 to 25 knots. Snow showers likely during
the day, then a chance of snow showers Saturday night. Waves 4 to
7 feet subsiding to 3 to 6 feet. Waves occasionally around
9 feet.

$$

LOZ063-090400-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
402 PM EST Mon Dec 8 2025

.TONIGHT...Northwest winds 5 to 15 knots becoming south. A chance
of snow showers late this evening. Waves 1 to 2 feet.
.TUESDAY...South winds 15 to 25 knots. A chance of snow showers
early in the afternoon. Snow showers late. Waves 1 to 3 feet
building to 3 to 5 feet.
.TUESDAY NIGHT...Southwest winds 15 to 25 knots becoming south.
Snow likely in the evening, then rain and snow overnight. Waves
3 to 6 feet.
.WEDNESDAY...South winds 15 to 25 knots becoming southwest. Rain
and snow in the morning, then rain in the afternoon. Waves 3 to
6 feet building to 4 to 7 feet. Waves occasionally around 9 feet.
.WEDNESDAY NIGHT...West winds 20 to 25 knots becoming northwest.
Rain with snow likely in the evening, then snow likely overnight.
Waves 5 to 9 feet. Waves occasionally around 11 feet.
.THURSDAY...Northwest winds 20 to 25 knots. Snow showers likely.
Waves 5 to 9 feet. Waves occasionally around 11 feet.
.FRIDAY...West winds 15 to 20 knots becoming southwest. A chance
of snow showers during the day, then snow showers likely Friday
night. Waves 3 to 6 feet.
.SATURDAY...Southwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. Snow showers likely during the
day, then a chance of snow showers Saturday night. Waves 4 to
7 feet building to 5 to 9 feet. Waves occasionally around
11 feet.

$$

LOZ064-065-090400-
Lake Ontario open waters from Sodus Bay to the Saint Lawrence
River-
402 PM EST Mon Dec 8 2025

.TONIGHT...Northwest winds 5 to 15 knots becoming south. A chance
of snow showers from late evening on. Waves 2 feet or less.
.TUESDAY...South winds 15 to 25 knots increasing to 30 knots. A
chance of snow showers early. A chance of snow showers early in
the afternoon, then snow showers likely late. Waves 1 to 3 feet
building to 5 to 8 feet. Waves occasionally around 10 feet.
.TUESDAY NIGHT...South winds to 30 knots. Snow in the evening,
then snow and rain overnight. Waves 5 to 8 feet. Waves
occasionally around 10 feet.
.WEDNESDAY...South winds to 30 knots becoming southwest. Rain and
snow in the morning, then rain in the afternoon. Waves 3 to
6 feet building to 5 to 8 feet. Waves occasionally around
10 feet.
.WEDNESDAY NIGHT...Southwest winds to 30 knots becoming
northwest. Rain and snow in the evening, then snow overnight.
Waves 5 to 9 feet. Waves occasionally around 11 feet.
.THURSDAY...Northwest winds 15 to 25 knots. Snow showers likely.
Waves 5 to 9 feet. Waves occasionally around 11 feet.
.FRIDAY...Northwest winds 15 to 20 knots becoming southwest. Snow
showers likely. Waves 4 to 7 feet subsiding to 3 to 5 feet. Waves
occasionally around 9 feet.
.SATURDAY...Southwest winds 15 to 25 knots becoming west. Snow
showers likely. Waves 4 to 7 feet building to 6 to 10 feet, then
subsiding to 5 to 8 feet. Waves occasionally around 13 feet.

$$

LOZ061-090400-
MAFOR 0822/
ONTARIO WEST 1/2 11600 12500 12410 12420 11437. Waves 2 feet or
less tonight. Waves 1 to 3 feet building to 4 to 7 feet, and
occasionally around 9 feet Tuesday.

ONTARIO EAST 1/2 11710 11600 11500 11510 11410 11420 11430 11447.
Waves 2 feet or less tonight. Waves 1 to 3 feet building to 4 to
7 feet, and occasionally around 9 feet Tuesday.

$$