
More than 500,000 customers in the United States as far west as Texas were without power and more than 9,600 flights were expected to be canceled on Sunday ahead of a monster winter storm that threatened to paralyze eastern states with heavy snowfall.
Forecasters said snow, sleet, freezing rain and dangerously frigid temperatures would sweep the eastern two-thirds of the nation on Sunday and into the week.
Calling the storms






