Tornado: Dangerous Earth

BBC FOUR

Thursday 8 December 2016  20:00 - 20:30 (30 mins)
5/6. Dr Helen Czerski peers into the heart of the storm to find out how advances in technology are giving new insight into tornadoes - the fastest winds on the planet. Also in HD. [S]

Tornado: Dangerous Earth may be available on playback
Tornado: Dangerous Earth (BBC FOUR) Thursday 8 December 2016 20:00 - 20:30