will be 15 to 25 degrees colder than normal Monday with a gradual moderation into Christmas Day. In Kansas and southeast Nebraska, snowfalls will total 3 to 6 inches. And those cold temps will keep folks shivering. Whitney Eichinger of Southwest Airlines said the company is trying to offer customers options. We are allowing customers to rebook their trip with no penalty through -LRB- Sunday -RRB-, she said. That has more to do with traveling to the airport, not flight cancellations. Mid-Atlantic/Northeast: Weirdly warm If there is one present being handed out on as winter begins, it is the well above-average temperatures in the Mid-Atlantic. New York City broke a record high Sunday, according to Ashley Sears, a meteorologist with the National Weather Service. -LRB- The record -RRB- was previously 63 degrees in 1998. And we are currently sitting at 70 degrees, which we 've been at for the past couple of hours, she said. Farther north, however, the situation has been less cozy. In Maine and across New Hampshire, Vermont and into northern New York, winter warnings -- including ice storm warnings and freezing rain -- were in effect. New York Gov. Andrew Cuomo declared a winter ice emergency and activated the state's emergency operations center. The National Weather Service in Buffalo said up to an inch of ice accumulation is expected, and areas near the St. Lawrence and Black