The storm left trees and roads in several mid-Atlantic states coated in ice before warmer temperatures moved in.

The National Weather Service issued an ice storm warning​ for parts of the area and winter weather advisories for other areas in western Pennsylvania.

Storms spawned at least one tornado, sent creeks over their banks and caused flash flooding Thursday in portions of West Virginia and Kentucky, while a wintry mix coated trees and roads in ice and even dropped “thunder ice” in several states.

A winter storm that brought snow, sleet and freezing rain to a large swath of the Midwest swept into the mid-Atlantic and Northeast on Thursday, causing treacherous travel conditions, prompting school delays and closures and potential power outages for millions of Americans.