Chances of milder wx in much of the CONUS is unlikely. The Gulf of Alaska CWB will verify equatorward & more negatively tilted than forecast. This seemingly minute detail leads to a big NW Canada ridge & corresponding SE Canada vortex >>> arctic outbreak E of the Rockies ~ Dec 10 https://t.co/u1G6ur5goD pic.twitter.com/lGIvfMaXKu

— Eric Webb (@webberweather) December 3, 2019