Snow in the Rockies; Showers and Thunderstorms Along the Gulf Coast; Potential Winter Storm for Northern Mid-Atlantic and Interior New England

A winter-like pattern will continue over much of the Lower 48 over the next few days, with snow stretching from the Rockies today into the Middle Mississippi Valley on Monday. Showers and thunderstorms will develop along the Gulf Coast and Southeast on Monday. As the storm moves northward late Monday into Tuesday, winter weather is possible from the Central Appalachians to Interior New England. Read More >

NZUS99 KBUF 010552
GLFLOT

Experimental Tabular Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1252 AM EST Mon Dec 1 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 29.7 inch surface low near the Ontario/Quebec border
will track towards eastern Quebec and the Canadian Maritimes
overnight. A 30.4 inch surface high centered over the Central Plains
will then build east across the Great Lakes Monday, sliding quickly
to New England on Tuesday. A 29.6 inch surface low off the Carolina
coastline Tuesday 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 on Thursday, with another 30.4 inch
high building in its wake Thursday night. The high will then quickly
move east of the lake Friday.

LOZ062-011500-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1252 AM EST Mon Dec 1 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING...

.Today...
Weather.............Mostly sunny.
Sfc winds...........Northwest 10 to 15 knots in the morning
                              becoming light and variable.
100-ft winds........Northwest 15 to 20 knots in the morning
                              becoming light and variable.
Sig waves...........6 to 9 feet subsiding to 2 to 4 feet in the
                              afternoon.
Ocnl waves..........Around 10 feet in the morning.

.TONIGHT...
Weather.............Cloudy, then chance of snow showers after
                              midnight.
Sfc winds...........South 5 to 10 knots.
100-ft winds........Southeast 10 to 15 knots.
Sig waves...........1 to 3 feet.

.TUESDAY...
Weather.............Mostly cloudy with chance of snow showers, then
                              partly sunny in the afternoon.
Sfc winds...........Southeast 5 to 10 knots becoming north in the
                              afternoon.
100-ft winds........Southeast 10 to 15 knots becoming north in the
                              afternoon.
Sig waves...........1 to 3 feet.

.TUESDAY NIGHT...
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.

.FORECAST DAYS 3 THROUGH 5......
.WEDNESDAY...Windy. Snow showers likely. Southwest winds to
30 knots. Waves 6 to 9 feet.
.THURSDAY...Chance of snow showers in the morning. Northwest
winds 15 to 20 knots. Waves 6 to 9 feet.
.FRIDAY...Chance of snow showers after midnight. Southwest winds
15 to 20 knots. Waves 3 to 5 feet.

$$

LOZ063-011500-
Lake Ontario open waters from Hamlin Beach to Sodus Bay-
1252 AM EST Mon Dec 1 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING...

.Today...
Weather.............Mostly sunny.
Sfc winds...........Northwest 15 to 20 knots decreasing to 5 to 10
                              knots in the afternoon.
100-ft winds........Northwest 20 to 25 knots decreasing to 10 to 15
                              knots in the afternoon.
Sig waves...........8 to 12 feet subsiding to 3 to 5 feet in the
                              afternoon.
Ocnl waves..........Around 13 feet subsiding to around 6 feet in
                              the afternoon.

.TONIGHT...
Weather.............Cloudy, then snow showers likely after
                              midnight.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.

.TUESDAY...
Weather.............Snow showers likely, then mostly cloudy with
                              chance of snow showers in the afternoon.
Sfc winds...........Southeast 10 to 15 knots.
100-ft winds........Southeast 15 to 20 knots.
Sig waves...........2 to 4 feet.

.TUESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........North 10 to 15 knots becoming west after
                              midnight.
100-ft winds........North 15 to 20 knots becoming west after
                              midnight.
Sig waves...........2 to 4 feet.

.FORECAST DAYS 3 THROUGH 5......
.WEDNESDAY...Windy. Snow showers likely. Southwest winds to
30 knots. Waves 6 to 9 feet.
.THURSDAY...Breezy. Chance of snow showers in the morning.
Northwest winds 20 to 25 knots. Waves 8 to 12 feet.
.FRIDAY...Chance of snow showers after midnight. Southwest winds
15 to 20 knots. Waves 4 to 6 feet.

$$

LOZ064-065-011500-
Lake Ontario open waters from Sodus Bay to Mexico Bay-
Lake Ontario open waters from Mexico Bay to the Saint Lawrence
River-
1252 AM EST Mon Dec 1 2025

...GALE WARNING IN EFFECT UNTIL 4 AM EST EARLY THIS MORNING...

.Today...
Weather.............Mostly sunny.
Sfc winds...........Northwest 15 to 20 knots decreasing to 5 to 10
                              knots in the afternoon.
100-ft winds........Northwest 20 to 25 knots decreasing to 10 to 15
                              knots in the afternoon.
Sig waves...........8 to 12 feet subsiding to 3 to 5 feet in the
                              afternoon.
Ocnl waves..........Around 13 feet subsiding to around 6 feet in
                              the afternoon.

.TONIGHT...
Weather.............Cloudy, then chance of snow showers after
                              midnight.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.

.TUESDAY...
Weather.............Snow, then mostly cloudy with chance of snow
                              showers in the afternoon.
Sfc winds...........Southeast 10 to 15 knots.
100-ft winds........Southeast 15 to 20 knots.
Sig waves...........2 to 4 feet.

.TUESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.

.FORECAST DAYS 3 THROUGH 5......
.WEDNESDAY...Windy. Chance of snow showers in the afternoon. snow
showers likely in the evening. snow showers after midnight.
Southwest winds to 30 knots. Waves 6 to 9 feet.
.THURSDAY...Windy. Snow showers likely in the morning, then
chance of snow showers in the afternoon. West winds to 30 knots.
Waves 8 to 12 feet.
.FRIDAY...Chance of snow showers after midnight. South winds
15 to 20 knots. Waves 4 to 6 feet.

$$

LOZ061-011500-
MAFOR 0110/
ONTARIO WEST 1/2 11730 11720 11700 11600 13400 11300. A chance of
snow showers overnight. Waves 5 to 8 feet subsiding to 1 to 3
feet today. Waves 2 feet or less tonight.

ONTARIO EAST 1/2 11730 11720 11710 12600 11400 11410 11310. A
chance of snow showers overnight. Waves 6 to 10 feet subsiding to
2 feet or less today. Waves 1 to 3 feet tonight.

$$