A powerful winter storm is impacting million of Americans in the Midwest and Central Plains, with white-out conditions on roads and threats of thunderstorms to neighboring states.

Another significant winter storm is sweeping across the Midwest and central US with disruption likely. Millions of people along the storm's path from the West Coast to the Upper Midwest will experience significant weather impacts until Thursday. Forecasters are warning of heavy snow and blizzards associated with this next storm system.

Blizzard warnings have been issued for more than 3 million people in the Plains and upper Midwest as a winter storm brings snow and high winds across those regions, resulting in treacherous or impossible travel conditions.