How do you get a -NAO winter out of this?
Dec 2021: 0.29
Jan 2022: 1.08 Feb: 1.68 March: 0.77
What am I missing?
Also, you seem to be shifting the emphasis from a crap winter, to merely a positive NAO....maybe biased by your geography....but here in New England, we don't necessarily need a negative NAO in a la nina to do just fine. 1975-1976 and 2008-2009 are a couple of examples...both +QBO, as well.