A colossal storm could bring hurricane-force winds, major flooding, blizzard conditions and tornadoes to much of the U.S. later this week.

Dirk Verdoorn breaks down active weather on March 13 at 12:50 p.m. and looks ahead an how much more rain and snow to expect.

According to the National Weather Service, it will hardly feel like March, with highs later in the week expected to be in the lower to mid 50s, which is 10 to 15 degrees below normal.

The National Weather Service expects to see thunderstorms this weekend statewide. Here's what to know and how bad it will get.

There is the potential for severe weather across the southeastern parts of the United States over the next several days, including Louisiana, Alabama, Tennessee and Georgia. On Sunday, that severe weather threat extends into north and central Florida.

A powerful storm system is set to bring multiple rounds of dangerous severe thunderstorms, with numerous strong tornadoes possible, from the Midwest to the Southeast beginning Friday. Threat level: A total of about 100 million people live in areas under threat from straight-line wind damage,