🧵2/2: These factors in an El Nino/easterly QBO suggest potential for a weak polar vortex & potential for high-latitude blocking Jan-Feb. Would caution that the pattern until (at least) late December in the CONUS looks rather Pacific dominated and generally mild in the meantime. pic.twitter.com/LuZGvdroyv

— Jim Sullivan (@JimSullivan92) December 2, 2023