Shows the value of a simple shelter.
A simple above-ground shelter won't do much good when a tornado uses telephone poles as javelins. I don't know if basement shelters are practical there. Basements are possible for my family in Kansas (maybe two hours north of OKC by car).
There's video from last year of a tornado tossing 18-wheeler trailers (big cargo trailers from highway tractor/trailer rigs) high in the air near Dallas/Fort Worth. It's not the wind that a shelter needs to deal with, it's what the wind carries along.
Yes odds of getting hit by one are slim, but still, I never understood why so many people in tornado prone areas just shrug their shoulders at the thought of installing one.
From memory, the highest odds in the world are about one on the ground within 25 miles a given point, once per century.
It's a classic insurance problem: is it cheaper to accept infrequent losses or spend a lot on prevention?
The question is more complicated in Florida or the Gulf Coast, where an underground shelter is out of the question for hurricanes.