How a Japanese Scientist Developed the Tornado Rating System

The World

American flags wave over the remains of Plaza Towers Elementary school in Moore, Oklahoma May 21, 2013 after it was destroyed by a massive tornado May 20. Emergency workers pulled more than 100 survivors from the rubble of homes, schools and a hospital in an Oklahoma town hit by a powerful tornado, and officials lowered the death toll from the storm to 24, including nine children. REUTERS/Richard Rowe (UNITED STATES - Tags: DISASTER ENVIRONMENT TPX IMAGES OF THE DAY) - RTXZVGY


Rescue efforts continued Tuesday to uncover survivors from the tornado that came through Moore, Oklahoma. It has been preliminarily declared a category F4, that is Fujita Scale 4. The system of rating tornadoes was developed by Ted Fujita, a scientist from Japan. Anchor Marco Werman speaks with Harold Brooks, research meteorologist for the National Severe Storms Laboratories in Norman, Oklahoma about Ted Fujita and the aftermath of the tornado in Moore.
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