One thing to consider is that Cascade snowfall is in a very delicate balance with temperature, and it could just be possible that we are reaching the tipping point only now. One interesting test to this theory would be to look at the occurence of snowfall at lower elevations in WA over the last 100 years. I would imagine that if we are reaching some tipping point, casued by increasing temps, that the tipping point is moving higher in elevation over time, and thus we would have already experianced this point in lower elevation areas. Just a thought, no data to show for it.
<br><br>I'm pretty sure this has been done, at least for the Sierra (where they have better long term records; memory is a little foggy though). See Philip Mote references from other threads. As I remember, your intuition Juan is correct. Dr. Mote has also gone through great lengths to show that our slowly declining snow pack is mainly linked to warmer temperatures and not less precipitation (when you look at the entire West, over all the available data, a conclusive signal emerges).