The storm is expected to reach Oklahoma Thursday, and could leave behind several inches of snow in some areas of the state.

A winter storm that dropped heavy snow and glazed roads throughout the U.S. South is maintaining its icy grip on much of the region into the weekend.

A powerful winter storm brought heavy snow and icy conditions to parts of the U.S. South on Thursday, forcing officials to close schools, cancel flights and warn residents in some of the worst-hit areas to stay off roads as it lumbered eastward through Oklahoma and Texas.