We are now in mid January and the effects of the Sudden Stratospheric Warming (short: SWW) and Polar vortex split are becoming visible as strong blocking over the Arctic region is resulting in strongly dynamic pattern in the mid-latitudes. The current strong ridge over the north Atlantic should persist until the weekend when a significant pattern change will likely occur. The ridge over the Arctic will intensify while the northern Atlantic ridge retreats west towards North America. This brings development of troughs with cyclones also towards western Europe. As a result, widespread cooling will take place for large parts of Europe and enhance chances for snowfall events. The pattern overview for the weekend into early next week indicates weakening of […]
Source: Latest UPDATE on the Polar Vortex split – much colder weather will overspread the western half of Europe soon! – Severe Weather Europe