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Politics : Liberalism: Do You Agree We've Had Enough of It?
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To: Kenneth E. Phillipps who wrote (17223)10/23/2007 1:19:44 PM
From: DizzyG   of 224748
 
It is often said that the air is heated and dried as it passes through the Mojave and Sonoran Deserts, but according to meteorologists this is a popular misconception. The Santa Ana winds usually form during autumn and early spring when the desert is relatively cold, although they may form at virtually any time of year. The air heats up due to adiabatic heating while being compressed during its descent. While the air has already been dried by orographic lift prior to reaching the Great Basin, the relative humidity of the air declines rapidly as it descends and warms in its final stages as it passes over the Transverse and Peninsular Ranges.
en.wikipedia.org

So the cool air from the Deserts is warmed because it descends from a higher altitude.

Diz-
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