This Wednesday, May 29, at 10:00 pm WGBY will broadcast NOVA’s Oklahoma’s Killer 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.  In this NOVA special, you’ll meet scientists in the front ranks of the battle to understand these extreme weather events. You also meet storm survivors whose lives have been upended and learn how we can protect ourselves and our communities for the uncertain future.

At the NOVA Beta site, you can watch a preview and find related links such as Hunt for the Supertwister, Rate Tornado Damage, Tornado Country, and Killer Tornado of 1928.  NOVA Teacher resources include the videos How Do Tornadoes Form?  to learn how scientists use computer simulations to explore the question of how supercell thunderstorms produce tornadoes and Chasing Tornadoes to follow scientists on their hunt for tornadoes using Doppler radars to gather data and solve how tornadoes are formed.