Deadliest Tornadoes
Season 39 Episode 10 | 53m 45s | Video has closed captioning.
In 2011, the worst tornado season in decades left a trail of destruction across the U.S., killing more than 550 people. Why was there such an extreme outbreak? How do such outbreaks form? With modern warning systems, why did so many die? Is our weather getting more extreme - and if so how bad will it get?
Aired: 04/10/12
Expired: 06/16/20
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Problems Playing Video? | Closed Captioning