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.

National Weather Service meteorologist Zachary Yack said the storm would be "almost identical” to the winter storm that brought high winds and coated the city in 0.15 inches of ice earlier this week,

Of all the precipitation types, freezing rain is by most measures the worst because it can weigh heavily on trees and power lines.