Tens of millions of people across the U.S. from the Plains to the Southeast are preparing for a potential multiday severe weather outbreak this week, with forecasters warning of threats of large hail,

The chances of a significant severe weather threat next week are continuing to grow in the South from Texas to Mississippi, while winter weather returns to the Northeast this weekend.

A powerful storm system will continue to spread a threat of severe thunderstorms that could produce tornadoes, damaging winds and hail in the South and East through Wednesday. Here's a look a the latest timing and threats for the severe weather.