How to Survive a Tornado

Ginger Zee shows you what to do when you have only minutes to seek shelter.
3:56 | 05/01/15

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Transcript for How to Survive a Tornado
Test Text1 plain Back now at 7:41 with "Gma" survival week. This week, we left Matt Gutman stranded on an island. Now, it's in ginger's turn. She's chase D tornados in her career. Millions of Americans are at wrist of tornadoes every year. What should you do if you're at risk? When a tornado watch is wrshs, you still have time. When it's a warning you have got the get to your safe place. Oh, . He's over, he's over. Reporter: It's mother nature at her most ferocious. Oh, my god. Turn the car around! We're literally running. Get down! Reporter: In the past two years alone, tornadoes killed at least 50 Americans. It's coming toward us. In 2013, Chris Lancaster and his family survived this ef-4 ripping through their Washington, Illinois, home. Every second caught on tape. Oh! Reporter: Chris footbally making it to the basement. Barely. Chris, we're okay. This is what my house looks like after a tornado came through. The debris was hitting my face. Don't film it. Get the hell out of there. Reporter: To survive this, where you go can mean the difference between life and death. This is one of the research labs at th tk tk -- Texas tech. This is a debris cannon. It simulates what can happen with different terms. If you can get to a storm shelter with walls like this. Three, two. Reporter: One. Whoa! You stay alive. This 100-mile-per-hour missile will go through the standard residential truck chur. Reporter: Don't believe it. Watch this. A 2 by 4 through brick. Cinder block. You don't want this going into you. If you have this wall, it won't. We gotta go! Just drive, just drive! Reporter: Just as critical, knowing where not to be. Stay off the roads and away from overpasses. Some of the most critical moments can happen after the storm. At disaster city in college Station, Texas. This is disaster city. They train for just that. Pinning me under wreckage. Experts say it's important not to freeze. Instead, look around for anything that can become a tool. I spot this once dangerous piece of Te bree. Now, a life-saving makeshift lever. Wedge it underneath. You can see how much you can move that weight. You have a tool box that used to be your house. Reporter: I'm free. With all my exits blocked, I need another way out. I find this broken table leg. Okay. I'm out. Survive this? And you can now help others do the same. So again, a shelter or a basement is best. If you can't get to it, have a predetermined safe place near the center of your home, away from windows. Like an interior closet, hallway, or beneath the staircase. The more walls between you and T storm, the better. We posted a checklist on our website. The other thing people don't think about is in that special place, even in the basement, having a helmet is the best idea. Covering your head is where people get hurt most. Even a bike helmet. People say get in the bathtub. What? It's not always the best place. It depends on how many windows are in the bathroom. Where it is. If your bathroom is interior. Basement bathtub. Yes. A lot of great tips. Thank you. Thank you.

This transcript has been automatically generated and may not be 100% accurate.

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