The evolution of the +EAMT/EPO & Scandi/Kara Sea ridging retrograde towards Greenland on extended range guidance is not a coincidence or model fodder, but instead a legitimate waveguide response. A wintry pattern is increasingly likely in the CONUS by the second full week of Dec. pic.twitter.com/27sAErYLDf

— John Homenuk (@jhomenuk) November 22, 2022