A snowstorm that could last up to 18 hours was on its way to southern New England, and Boston could be snowed under with up to 15 inches, the National Weather Service said Sunday afternoon.
Monday's commuters in the region could face a nightmare with blowing and drifting snow, freezing temperatures, gusty winds and periods of sleet. Flight delays and cancellations were likely, the weather service said.
Meanwhile, winter storm warnings straddled Interstate 95 from Maine to the Carolinas, and they also were issued in parts of Georgia and Alabama.
Delta Air Lines canceled 300 flights, most of them to or from Atlanta, because of snowy weather, spokesman Brian Kruse said Sunday. It was snowing in Atlanta, where Delta is based, and 2 to 4 inches was expected.
David Spear, a spokesman for the Georgia Department of Transportation, expected traffic chaos.
"People tend to get a little animated out here at the sight of snow," he told CNN. "Our concern is going to be -- as we move into the evening hours and the temperature drops -- that that slush becomes ice and then we have a real situation for our morning commute tomorrow.
Gee, snow? In the South? With Spring right around the corner? Silly human beings are so self-important.