There were 4 other years that I could find with the -1 sigma PNA/NAO duo; of those 4 years, none had the amp'd up SE ridge. pic.twitter.com/7oh5UfEsPy— Mike Ventrice (@MJVentrice) February 16, 2018
There were 4 other years that I could find with the -1 sigma PNA/NAO duo; of those 4 years, none had the amp'd up SE ridge. pic.twitter.com/7oh5UfEsPy