Sudden Stratospheric Warming

The 'Beast from the East' bites the UK

During the last week of February and into the last week of March, the ‘Beast from the East’ reared its ugly head and brought severe winter weather to much of the UK, in what was the coldest period for a number of years. The bitter winds drawn down from Siberia were caused by the Sudden Stratospheric Warming event that occurred several days previously.

Sudden Stratospheric Warming event theWeather Club Mon, 19/02/2018 - 12:19

A Sudden Stratospheric Warming (SSW) event has taken place, resulting in the split of polar vortex in two vortices which may impact our weather later this month (there is a lag time between an SSW and the impact it has on UK weather).

A SSW of the atmosphere refers to a rapid rise in temperatures in the stratosphere (which is found at an altitude of 10 km to 50 km) when the temperature can rise by up to 50°C over a couple of days – and this often leads to cold conditions across the UK.