NOVA Deadliest Tornadoes
Why was the 2011 tornado season in the U.S. so extreme, and why did so many die? Details
Episode: Deadliest Tornadoes
Why was the 2011 tornado season in the U.S. so extreme, and why did so many die?• Visit the Deadliest Tornadoes webpage
Premiere Date: 04/11/2012
Episode Expires: Never
TV Rating: TV-PG
To view the full experience of this website, please download and install latest Adobe Flash Player version.
Hunt for the Supertwister
Tornado-chasing scientists with an eye to better forecasting plumb the secrets of nature's...
Rate Tornado Damage
Use the Fujita Scale of tornado intensity to assess the level of destruction left in the w...
How is it that with nearly 200 nations in the world, just one—the U.S.—gets up to three-qu...
Killer Tornado of 1928
The remarkable story of 17-year-old Dale Larson and 29 Nebraskan schoolchildren shows how ...