In this episode Richard investigates the crucial role temperature plays in all weather. Without heat - or lack of it - 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 with the help of a quarry and a massive hot plate and discovers just why it is so hard to pull a sword out of snow.
Along the way, 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 and in Canada, he creates his own ice storm.
He also drops in on Dan Morgan who creates a lightning bolt in his lab and where Richard is able to see thunder and hear lightening with the aid of some special cameras, light bulbs and a few candles.
Wild Weather with Richard Hammond is a weather series unlike any other and it will completely change our understanding of the extraordinary natural forces at play in our weather.
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