In April 2011, the worst tornado outbreak in decades left a trail of destruction across the U.S., killing more than 340 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? This episode of NOVA looks at the science behind the April outbreak, meeting those affected and the scientists trying to predict tornadoes and understand whether this outbreak relates to global climate change.
More Full Episodes
The Great Math MysteryHagia Sophia: Istanbul's Ancient MysteryPetra: Lost City of StoneColosseum: Roman Death TrapSinkholes—Buried AliveSunken Ship RescueBig Bang MachineFirst Man on the MoonKiller LandslidesEmperor's Ghost ArmyBigger Than T. rexFirst Air WarBen Franklin's BalloonsWhy Planes VanishSurviving EbolaVaccines—Calling the ShotsD-Day's Sunken SecretsEscape from Nazi AlcatrazWhy Sharks AttackGreat Cathedral MysteryRoman Catacomb Mystery
Holly is on a mission to get to know more Vermonters, what inspires them, what makes them tick, and to learn how Vermont PBS can better serve. Watch the video...
Original series, specials, documentaries and web shows produced by Vermont PBS