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Deadliest Tornadoes
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NOVA

Deadliest Tornadoes

Season 39 Episode 10

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?

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Full Episodes
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Season 48 Episode 101
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Season 48 Episode 19
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Season 48 Episode 18
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Season 48 Episode 17
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Season 48 Episode 16
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Season 48 Episode 15
Edible Insects
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53:28
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