NOVA
Season 40 Episode 20 - Oklahoma's Deadliest Tornadoes
On May 20, 2013, a ferocious EF5 tornado over a mile wide tore through Moore, Oklahoma, inflicting 24 deaths and obliterating entire neighborhoods. It was the third time an exceptionally violent tornado had struck the city in 14 years. Yet predicting when and where these killer storms will hit still poses a huge challenge. Why was 2011—the worst ever recorded tornado season that left 158 dead in Joplin, Missouri—followed by the quietest ever year of activity prior to the Moore disaster? Can improved radar and warning technology explain why so many fewer died in Moore than in Joplin? And will tornadoes get worse as Earth's climate heats up? In this NOVA special, we meet scientists in the front ranks of the battle to understand these extreme weather events. We also meet storm survivors whose lives have been upended and learn how we can protect ourselves and our communities for the uncertain future.
Episodes in Season 40
Secrets of the Viking Sword
55 min
Forensics on Trial
55 min
Mystery of Easter Island
55 min
Ultimate Mars Challenge
55 min
Inside the Megastorm
55 min
Doomsday Volcanoes
55 min
Decoding Neanderthals
55 min
Rise of the Drones
55 min
Who Killed Lindbergh's Baby?
55 min
Building Pharaoh's Chariot
55 min
Earth From Space
55 min
Mind of a Rampage Killer
55 min
Meteor Strike
55 min
Ancient Computer
55 min
Australia's First 4 Billion Years: Awakening
55 min
Australia's First 4 Billion Years: Life Explodes
55 min
Australia's First 4 Billion Years: Monsters
55 min
Australia's First 4 Billion Years: Strange Creatures
55 min
Manhunt - Boston Bombers
55 min
Oklahoma's Deadliest Tornadoes
55 min
