[palo verde]

oh I see
if the clouds can't get over the mountains
you don't get the storm
good
Love, Palo

[westmex]

The clouds pile up against the mountains, and drop rain to get light enough to get over them. The clouds in the eagle cam pic are piling up against the mountains. If there are enough of them, they back up over us and we get the rain. Thats a simple explanation, in truth it gets complicated, this is one of the hardest places to forcast the weather...
....Westy...