Many useful info by @Domeisen_D, @DrAHButler and others in recent days on #SSW. From #MODES: a movie of the evolution of the #polar #vortex #balanced winds at 10 hPa in the last month + #ECMWF 10-day forecast. pic.twitter.com/dQlPYSJaDh

— Nedjeljka Žagar (@NedjeljkaZ) January 10, 2021