Negative NAO Decembers are not common. only 20 in the last 72 years. First map shows the mean December temp of neg NAO December, The second years that coincide with our hurricane analogs 3rd is latest CFSV2 monthly, drastic change in it from 3 weeks ago pic.twitter.com/SP21zgaooO

— The American Storm (@BigJoeBastardi) November 28, 2022