
A storm system will bring a variety of hazards to the Eastern US. Wintry precipitation is expected from the central Appalachians to the Northeast. Heavy snow is expected for interior New England and the northern Mid-Atlantic through the night, and icing will continue in the Appalachians this morning. On the south side of the system, heavy rain and thunderstorms will persist across the Southeast. Read More >
NZUS99 KBUF 021452
GLFLOT
Experimental Tabular Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
952 AM EST Tue Dec 2 2025
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 29.6 inch surface low off the Carolina coastline
this morning 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.
LOZ062-022100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
952 AM EST Tue Dec 2 2025
.This Afternoon...
Weather.............Snow, then mostly cloudy with scattered snow
showers in the afternoon.
Sfc winds...........East 5 to 10 knots becoming north in the
afternoon.
100-ft winds........East 10 to 15 knots becoming north in the
afternoon.
Sig waves...........1 to 3 feet.
.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........North 5 to 10 knots becoming west 10 to 15
knots after midnight.
100-ft winds........North 10 to 15 knots becoming west 15 to 20
knots after midnight.
Sig waves...........2 to 4 feet.
.WEDNESDAY...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 15 to 20 knots increasing to 30 knots
in the afternoon.
100-ft winds........Southwest 20 to 25 knots increasing to 35 knot
gales in the afternoon.
Sig waves...........5 to 7 feet building to 8 to 12 feet in the
afternoon.
Ocnl waves..........Around 9 feet building to around 14 feet in the
afternoon.
.WEDNESDAY NIGHT...
Weather.............Rain and snow showers, then snow showers likely
and showers after midnight.
Sfc winds...........Southwest gales to 35 knots becoming west to 30
knots after midnight.
100-ft winds........Southwest gales to 45 knots becoming west at 35
knots after midnight.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 15 feet.
.FORECAST DAYS 3 THROUGH 5......
.THURSDAY...Windy. Chance of snow showers in the morning.
Northwest winds to 30 knots. Waves 6 to 9 feet.
.FRIDAY...Southwest winds 15 to 20 knots. Waves 4 to 6 feet.
.SATURDAY...Chance of snow showers in the morning. Southwest
winds 15 to 20 knots. Waves 4 to 6 feet.
$$
LOZ063-022100-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
952 AM EST Tue Dec 2 2025
.This Afternoon...
Weather.............Snow, then snow likely in the afternoon.
Sfc winds...........Southeast 5 to 10 knots.
100-ft winds........Southeast 10 to 15 knots.
Sig waves...........2 to 4 feet.
.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
.WEDNESDAY...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 20 to 25 knots.
100-ft winds........Southwest to 30 knots.
Sig waves...........3 to 5 feet building to 6 to 9 feet in the
afternoon.
Ocnl waves..........Around 7 feet building to around 11 feet in the
afternoon.
.WEDNESDAY NIGHT...
Weather.............Snow showers likely, then snow showers after
midnight.
Sfc winds...........Southwest to 30 knots.
100-ft winds........Southwest gales to 35 knots.
Sig waves...........10 to 14 feet.
Ocnl waves..........Around 16 feet.
.FORECAST DAYS 3 THROUGH 5......
.THURSDAY...Windy. Chance of snow showers in the morning. chance
of snow showers after midnight. West winds to 30 knots. Waves
8 to 12 feet.
.FRIDAY...Southwest winds 15 to 20 knots. Waves 3 to 5 feet.
.SATURDAY...Breezy. Chance of snow showers. Southwest winds 20 to
25 knots. Waves 5 to 7 feet.
$$
LOZ064-065-022100-
Lake Ontario open waters from Sodus Bay to Mexico Bay-
Lake Ontario open waters from Mexico Bay to the Saint Lawrence
River-
952 AM EST Tue Dec 2 2025
.This Afternoon...
Weather.............Snow, then snow likely in the afternoon.
Sfc winds...........Southeast 10 to 15 knots.
100-ft winds........Southeast 15 to 20 knots.
Sig waves...........2 to 4 feet.
.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
.WEDNESDAY...
Weather.............Mostly cloudy, then chance of snow showers in
the afternoon.
Sfc winds...........Southwest 10 to 15 knots increasing to 20 to 25
knots in the afternoon.
100-ft winds........Southwest 15 to 20 knots increasing to 30 knots
in the afternoon.
Sig waves...........3 to 5 feet building to 6 to 9 feet in the
afternoon.
Ocnl waves..........Around 6 feet building to around 12 feet in the
afternoon.
.WEDNESDAY NIGHT...
Weather.............Snow showers, then rain and snow showers after
midnight.
Sfc winds...........Southwest to 30 knots increasing to 35 knot
gales after midnight.
100-ft winds........Southwest gales to 35 knots increasing to 45
knots after midnight.
Sig waves...........10 to 14 feet.
Ocnl waves..........Around 16 feet.
.FORECAST DAYS 3 THROUGH 5......
.THURSDAY...Windy. Snow showers likely in the morning, then
chance of snow showers. West gales to 35 knots. Waves 8 to
12 feet.
.FRIDAY...Breezy. Chance of snow showers after midnight. South
winds 20 to 25 knots. Waves 4 to 6 feet.
.SATURDAY...Breezy. Chance of snow showers. South winds 20 to
25 knots. Waves 5 to 7 feet.
$$
LOZ061-022100-
MAFOR 0216/
ONTARIO WEST 1/2 11107 12800 19807 11800 11700 11610 11510 11530.
Waves 2 feet or less this afternoon and tonight. Waves 1 to 3
feet building to 3 to 5 feet Wednesday morning.
ONTARIO EAST 1/2 11307 11100 19107 11810 19817 11810 11800 11700
11610 11520. Waves 2 feet or less this afternoon and tonight.
Waves 1 to 3 feet building to 2 to 4 feet Wednesday morning.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet / 2 meters.