Sea, there is a bit more moisture in the Yosemite area, I lived up there for 21 years. Here it is about 6% in the summer and it has been about 25% or higher this winter here in Vegas. My friends in the mid west and east coast can see the humidity so I know there is a lot of difference. Dry place is a key word.
Did you read my post in kit building about the MAN article?? I found the one on the SU-29.