Interesting to see some EC46 members with a U10/60 reversal (sudden stratospheric warming) in early December. This would be a rare event for the time of year - last occurring in 1998.

October's Météo-France seasonal model hinted at this, and interestingly skill is rather good. pic.twitter.com/W9aGvyjcuu

— World Climate Service (@WorldClimateSvc) November 2, 2023