51�Թ�

The line comprises nine dashes which extends hundreds of miles south and east from its most southerly province of Hainan.

Unfortunately a change is arriving at just the wrong time with Friday seeing a strong southerly wind push warmer air into Scotland.

At the beginning of March, southerly winds brought warmer air up from the tropics to bring above average temperatures across the UK.

The Met Office also warns there could be some short term loss of power due to the spell of strong and gusty southerly winds.

This is one of the most southerly and best studied.