A winter storm brought snow, ice and freezing temperatures to a broad swath of the U.S. on Sunday, with some 60 million people across more than a dozen states from Kansas to New Jersey under winter weather warnings and advisories.

The first few bands of winter weather caused travel disruptions from Denver through Kansas, creating a bit of a headache for the Kansas City Chiefs football team, whose plane got stuck on the tarmac Saturday for more than three hours due to icy conditions. What to know as snow, freezing rain and bitter cold heads through much of the US