A winter storm in the South brought heavy snowfall Friday, causing thousands of flight cancellations and several governors to declare states of emergency.More than 46 million people were under a winter storm warning Friday,

Another blast of winter storms is closing schools, snarling flights and putting millions of residents on alert across parts of the Deep South and south-central U.S. The storm started dumping a mix of sleet and heavy snow Thursday morning in north Texas and Oklahoma,

Travelers can expect to see more delays and cancellations as the storm moves east toward Atlanta on Friday, a hub of Delta's.