Originally Posted by SteveL
As a 30 year resident N. of Seattle, what scares me about this little snow episode, (longest time of snow on the ground, since the 14th of Dec) is something I've read about in Cliff Mass's new book. (uw weather person) It is called the Pacific Decennial Oscillation and the theme is that we are in the beginning of a 30 year cooler period like the 50's when Green Lake froze so hard folks were ice skating on it.
I just read every page that the index marked as relevant to the Pacific Decennial Oscillation. To me at least he is very vague about what we might or might not expect, other than he seems to expect a large drop in NW mountain snowpack by mid-century due to global warming.
RE: PDO (p.243-244)-"Might the transition toward increasing temperature and less snowfall during the last quarter of the 20thy century be at least partly the result of PDO variability, and not because of global warming due to rising greenhouse gases? On the other hand, since confidence in the period of oscillation or the nature of the PDO is not great, could greenhouse warming have influenced the PDO index? We simply do not know."
Is there another section where PDO is given more weight in terms of future prediction rather than only as an obseved pattern with a relatively short historical record?