A sprawling winter storm that has forced schools to close, knocked out power and massively disrupted road and air travel is expected to blast the Northeast U.S. with heavy snowfall and "treacherous" ice accumulations on Friday before exiting over the Atlantic Ocean this weekend, the National Weather Service said.
Driving the news: Multiple governors declared states of emergency as heavy snow, freezing rain and ice pummeled much of the Central, Eastern and Southern U.S. On the warm side of the storm, thunderstorms spawned tornadoes in Alabama that killed one person Thursday.
