Just how unusual will this extreme ridging be over Alaska? Historically unprecedented in the reference climate for this region essentially from the surface up to 200mb level (37,000 ft or so) over quite a broad area (everything in bright red in these plots). #AKwx https://t.co/hMt23gynb6 pic.twitter.com/1t9N5MZXGo

— Dr. Daniel Swain (@Weather_West) November 13, 2022