Jet streams are fast-flowing currents of air that meander around the world at around 8 to 15 kilometres above sea level. We know that these high-altitude winds affect the weather at the surface, but how?<br /><br />In this in-depth guide, we explain how faster winds within the jet impact the shape of the larger jet stream and what this means for the weather at the surface. <br /><br />We also take a detailed look at how faster parts of the jet stream cause vertical air motions which affect surface weather.<br /><br />As this is an in-depth video, links to supporting videos that cover some of the concepts discussed will appear at appropriate times.<br /><br />Written and presented by Jodie Ramsdale<br />Animation by Mark Machin<br />Music is YellowDayz ©, composed by Amelie Machin
