Impressive signal for ridging near Greenland by the tail end of this afternoons GEFS. But how does it get there? You can watch the high latitude ridging progress from the Barents/Kara Sea back toward Greenland - a fairly classic signal to be on the lookout for a -NAO. pic.twitter.com/RaOQFMIPsh

— John Homenuk (@jhomenuk) November 13, 2019