Hurricane-level ice storm cancels over 9,000 weekend flights with half of America under warning

More than 9,000 flights across the U.S. set to take off over the weekend have been canceled as a major storm expected to wreak havoc across much of the country threatens to knock out power for days and snarl major roadways.

Roughly 140 million people were under a winter storm warning from New Mexico to New England. The National Weather Service forecast warns of widespread heavy snow and a band of catastrophic ice stretching from east Texas to North Carolina.

Forecasters say damage...