Google+

BBC Future

What causes hurricanes?

September is normally the peak of the hurricane season, but so far this year we have had less than expected. Why is that?

What makes a storm become a hurricane? And how do hurricanes differ from tornados, typhoons and cyclones?

Earth Unplugged’s Chris Howard explains all.

For more videos subscribe to the Earth Unplugged channel on YouTube.

If you would like to comment on this video or anything else you have seen on Future, head over to our Facebook page or message us on Twitter.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.