I wanted to confirm just how resilient the large scale pattern was over the U.S. this past winter. I plotted 500m Hgt Anom for each month Dec-Mar. I also plotted just 1st 1/2 of Dec to remove the cold last week bias. No surprises here!! #winter #weather @NWSWPC pic.twitter.com/IkEaSrdYZQ

— Tom Niziol (@TomNiziol) April 2, 2023