2/ Here is a direct comparison between GFS & ECMWF ensembles. ECMWF has more pronounced Southeast (SE) ridging. I do believe though that SE ridging is not common with Greenland blocking/high pressure so the ECMWF solution would be rare. pic.twitter.com/0MwDgdDNE9

— Judah Cohen (@judah47) January 29, 2021