Millions of Americans from the Ohio Valley to the mid-Atlantic are bracing for a wintry Monday with heavy snowfall, ice, rain and storms, which are forecast to disrupt morning commutes and snarl airline schedules across the East Coast.

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.

Another wide-reaching winter storm may bring the heaviest snowfall in years to some central and southern states later this week.