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NOVA

WETA TV26 and WETA HD: Wednesdays at 9:00 PM

PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys since its 1974 debut.

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Sun., March 15, 2015
2:30 pm
(60 minutes)

Deadliest Tornadoes  

The science behind the April 2011 tornado outbreak in the U.S., which saw more than 360 people killed from hundreds of twisters, is examined. Included: what caused the tornadoes; whether the tornado-prediction process can be improved.