A major storm continued to wallop much of Southern California on Thursday morning, bringing evacuation warnings, fears of mudslides and heavy mountain snow.

Severe thunderstorms, flooding rainfall, damaging winds, wildfires, record temperatures and snow are all possible across the United States.

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 hurricane-force winds, major flooding, blizzard conditions and a possible tornado outbreak.

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 cross-country tornado snow blitz threatens 100 million Americans with the ‘most severe’ storm outbreak of the year. ‘Dangerous, damaging and life-threatening’ weather conditions spanning half a million square miles will smash the US into mid-month.

A potent winter storm is expected to barrel across the nation this week, unleashing a dangerous mix of extreme weather threats, including ferocious winds, blinding blizzards and critically elevated fire risks.