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.

Snow will fall from Minnesota to Maine, with heavy amounts probably falling from Wisconsin to Massachusetts. Freezing rain and sleet will also be a big issue, especially south of Interstate 80 from Ohio through New Jersey.

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.

Nearly half of the United States from the Midwest to Northeast will see snow or a freezing rain mix before the weekend arrives, weather forecasters say.

ARLINGTON, Va. − A wall of snow, ice and rain was sweeping across the Northeast on Thursday, the first in a series of storms forecast to wallop much of the nation's northern tier over the next several days.

A powerful ice storm is set to affect the Midwest and Northeast of the U.S., bringing treacherous conditions, including freezing rain, sleet and potential power outages. Meteorologists warn that travel disruptions and hazardous road conditions will be widespread from Wednesday into Thursday.