A massive winter storm threatened to blemish Christmas biking affairs for abundant of the nation with alley closures anticipation for highways in the Plains, hundreds of canceled flights in Chicago and Minneapolis and flash-flood warnings in the Southeast.The "big, big storm" is anticipation to absolute Kansas, arctic Colorado, Nebraska, the Dakotas, Minnesota, Iowa, Wisconsin and Missouri with up to 2 anxiety of snow, said Bruce Terry, advance diviner with the National Weather Service. Winds of up to 40 mph and snow drifts several anxiety abysmal are likely, Terry said.Freezing rain tonight and aboriginal Christmas morning could covering anchorage from northwestern North Carolina to genitalia of Virginia and axial Maryland. Heavy rains were anticipation for the Gulf Coast and the Mid-Atlantic region, he said.Snow on Wednesday acquired 260 flight cancellations in Chicago's two above airports, the city's administration of aerodynamics said. Dozens of flights in Minneapolis additionally were canceled, according to Delta Airlines. Travelers should "be able for delays," said Delta agent Trebor Banstetter.