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

Parts of Mississippi are at risk of tornadoes, large hail, and damaging wind gusts up to 70 miles per hour later this week.

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.