#PolarVortex (PV) disruption ongoing and likely again Thanksgiving, I believe is related to current #cold air outbreak and another possibly at end Nov/early Dec but what does North Atlantic blocking mean for future PV disruptions, US & European weather? https://t.co/9ZWSlvqUI6 pic.twitter.com/dPWjQHsLoL

— Judah Cohen (@judah47) November 12, 2018