21 May 2013 12:45 | By James Francis
Tornadoes: 6 Facts

How Does A Tornado Form?



How Does A Tornado Form? (© KeystoneUSA-ZUMA/Rex Features)
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How Does A Tornado Form?

To create a tornado, you need a powerful storm and a low-pressure system. The low pressure keeps inviting air to come towards it, causing more air to be pushed upwards into the storm. Sometimes the air is pushed very high and cools rapidly, causing it to rush downwards. This first creates a mesocyclone, a large but relatively slow body of swirling, moving air. As the cyclone’s force becomes focused, it can form tornados - much smaller but faster spouts of air that can touch land.

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