Regardless of your theory, I'm not convinced a positive PDO will be the magical elixir for snowfall because the 50's and 60's both witnessed a mostly negative PDO with a brief positive from about 1958 - 1962. Under mostly negative conditions as we have witnessed since 2020, the 50's witnessed below normal snowfall and the 60's witnessed above normal snowfall. I don't find any significant impact because of the PDO phase.