Over the next week, tens of millions of Americans will be at risk of severe weather as a colossal storm marches across the country, threatening flooding in the West, blizzard conditions in the Plains region and tornadoes in the South.

Winter isn’t done with us just yet. A powerful storm system is expected to produce severe weather for millions of Americans from coast to coast this week, bringing heavy rain and strong winds to California,

A potent storm system is expected to pour heavy rain on western states later this week before rumbling into the central United States, where it could spawn tornadoes