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Is Leigh Ann Full Of Hot Air?

tornado Is Leigh Ann Full Of Hot Air?


With all of the recent tornadoes , Leigh Ann was thinking about a lesson she was taught, about what to do with your windows when a tornado is on the way. Is this lesson the correct thing to do or not?

If you hear the tornado warning sirens, that means that a tornado may happen in your area. Leigh Ann was taught that you should open a few windows in the house. This was done to relieve the pressure and suction from the tornado. Well, when she mentioned this to different people, they said she was wrong. Leigh Ann wants to know what you think. Take the poll and help her out.

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  • Kathy

    I googled it, the answer is no.
    it was proven wrong years ago. (The reason for this old, wrong advice was not to keep the windows from being broken, but to “equalize the pressure” inside and outside the building.)

    Last spring we published a story on how the 1979 Wichita Falls, Texas, tornado led to changes to tornado safety rules, including the one about opening windows as a twister approached. (Related story: 1979 Texas tornado led to safety changes)

    The old theory was that the drop in air pressure as a tornado hit a building caused the higher pressure inside to push the walls out – to make the building “explode.”

    Instead, researchers who studied the Wichita Falls tornado damage realized that wind blowing into open, or broken, windows pushes up on the roof. At the same time, wind blowing over the roof is making it act like an airplane wing that generates a lifting force. If the roof lifts off, the walls can fall outward, making it look like the building exploded.

    On the right side of the page with the Wichita Falls story you’ll find links to a lot of information about tornadoes, including safety rules.

    (Answered by Jack Williams, weather editor, Aug. 20, 2004)

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