Model skill near 0 for the PNA region at a 10-Day lead for the Jan 16-21 period, including the Euro. Haven’t seen the Euro perform this poorly with the PNA (-0.1 corr ~Jan 17)... The CMC and GFS both performing better. Incredible. pic.twitter.com/YPThTi0NUF

— Dr. Jonathan Wall (@_jwall) January 22, 2020