"It's déjà vu all over again." It's baaaaack! Maybe if I am being honest but GFS, CFS & EPS all predicting the return of Ural blocking. Potentially a big development with important implications for the #polarvortex in the coming weeks/months & whether the #winter is mild or wild. pic.twitter.com/alUDsJUaih

— Judah Cohen (@judah47) November 28, 2021