In April 2011, the worst tornado outbreak in decades left a trail of destruction across the U.S., killing more than 360 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?

'Deadliest Tornadoes' looks at the scientists striving to understand the forces at work behind last year's outbreak. Could their work improve tornado prediction in the future?

NOVA also talks to people whose lives have been upended by these extreme weather events in an effort to learn how we all can protect ourselves and our communities for the future.

If you would like to win a copy of this highly intriguing new DVD, just answer this easy question: The 2011 _____ ________ was the largest, costliest, and one of the deadliest tornado outbreaks ever recorded, taking place along the Southern, Midwestern, and Northeastern United States and leaving catastrophic destruction in its wake.

But what are the two missing words that this devastating tornado was actually named?!

Send us your answers and if you're correct you'll be in the running to win one of these new DVDs! Just send us an e:mail here before October 1st, 2020 with your answer and the subject title CONTEST: DEADLIEST TORNADOES DVDs to: exclusivemagazine@flash.net

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