Seeing a favorable Siberia-Aleutian pattern emerge in 1-2 weeks that supports upward wave flux into the stratosphere. This will likely result in a "Sudden Stratospheric Warming Event" during December. No telling whether this event is minor or major at these leads. pic.twitter.com/dNhvbzEigN

— Mike Ventrice (@MJVentrice) November 6, 2019