Im expecting a -NAO/-PNA in the means for this coming March & was curious how the PNA/NAO relationship has worked in the past back to 1950. The strongest -PNA (< -1) years tend to have +NAO, but interesting how the NAO tends to be negative alongside a modestly -PNA (-0.25 to -1). pic.twitter.com/rshXWKIK5p

— Chris DeVito (@ChrisDeVitoWX) February 16, 2018