The snow brought on by a winter storm on Thursday has caused slick and hazardous road conditions in the Oklahoma City metro and throughout the state. >> Click here to check out an interactive Oklahoma road condition mapSign up for our NewslettersOklahoma Department of Transportation crews are plowing and treating slick highways and bridges in southwestern and southcentral Oklahoma,

The biggest impact in Oklahoma was felt in the south, where one county reported 7 inches of snow. Snow is expected to continue falling overnight in some areas, which will create hazardous driving conditions through Friday.

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.