did the 73-74 winter season have a SSW event ? IMO this advertised SSW event soon is going to be the wild card this winter - it will probably change the current storm tracks we have been experiencing and also if there is a split in the PV that just makes things more uncertain and complex.*Stratosphere warming watch* Strong signals now emerge for a disruptive stratospheric warming event in early January, possibly impacting the course of Winter (severe-weather.eu)