A potentially historic massive winter storm will slam more than half of the U.S. today, moving east as it brings heavy snow, widespread ice accumulation and dangerous cold.

A powerful blast of cold air from the Arctic is expected to sweep through much of the United States over the coming days, bringing snow and ice to nearly 30 states and affecting nearly 160 million peo...

The weather service warned of "treacherous travel conditions, prolonged power outages, and tree damage," across the southern Plains, Lower Mississippi Valley, Mid-South and the Carolinas.