Wild Weather with Richard Hammond

Richard Hammond investigates the crucial role water plays. Without water there would be almost no weather: no rain, no snow, no hail, no clouds. So Richard goes in pursuit of water in all its forms. He tries toweigh a cloud, finds out how rain could crush a car, and gets involved in starting an avalanche.

Along the way, he tries to find out why clouds float by building his own cloud with the aid of a cattle trough, some humidifiers and atmospheric scientist Dr Jim McQuaid. But will their cloud float in the air like a real cloud?

He also drops in on renowned hail scientist Charles Knight in his lab in Boulder, Colorado, to discover that there is far more to hail than meets the eye. In a scientific first, and with the help of Jim Stratton and Craig Zehrung from Purdue University, Richard sets about firing ice and hail at a board to find out which does the most damage.

Finally, in conjunction with the WSL Institute for Snow and Avalanche Research SLF in Davos, Richard joins Walter Steinkogler as he starts an avalanche in an attempt to find out how something as delicate and fragile as a snowflake can travel at extraordinary speeds of up to 250mph on the ground.

Richard Hammond investigates the crucial role temperature plays in all weather. Without heat, there would be no weather - no clouds, no rain, no snow, no dust storms, no thunder and lightning.

Richard sets off to find out about hot air and with the help of a quarry and a massive hot plate discovers just why it is so hard to pull a sword out of snow. He discovers, by building his own massive dust storm with the help of a few friends and dust specialist Dr Nigel Tapper, just how sand from the Sahara bounces its way to the UK.

In Canada he creates his own ice storm. He also drops in on Dan Morgan, who creates lightning bolts in his lab, where Richard is able to see thunder and hear lightning with the aid of some special cameras, light bulbs and a few candles.

Our everyday weather is a thing of extraordinary beauty and complexity. This programme attempts to uncover, for the first time on television, the incredible events happening right in front of us, every second of every day.

Presenter Richard Hammond finds out what wind actually is and captures some while visiting the place with 'the worst weather in the world', shows how to predict the weather by watching which way the clouds are moving, finds out how rain can crush a car - but not a sandcastle and lights a giant hotplate in a UK quarry to create his very own thermal.

Students will see Richard create his own rain, stand in the middle of a tornado and witness a thunderstorm indoors - amongst other thought-provoking, entertaining - and unexpected - experiments.

By getting in amongst real weather, or by creating his own, Richard attempts to show just what makes weather tick.