Here’s how to make sense of the weather. And while the weather presenter pointing at all the bright lines and markers on the synoptic chart certainly know what they’re talking about ...

A synoptic chart is a more detailed weather map which shows what type of weather system is moving over Britain. Isobar lines which join up areas of equal air pressure are drawn on these maps.

THE Deutsche Seewarte, Hamburg, has undertaken to produce on behalf of the International Meteorological Organisation, daily synoptic weather charts covering the whole of the northern hemisphere.