Note that the latest ECMWF forecast shows this wave pulse merely reducing the strong #polarvortex to average wind speeds. Additional unpredicted wave breaking would need to happen to further slow the winds. In this model *no* ensemble member shows an #SSW in the next 3 weeks. https://t.co/eReMJQLfTY pic.twitter.com/FW1C7gWNtZ

— Dr. Amy H Butler (@DrAHButler) December 28, 2022