In the summer the Eastern Sierra often has afternoon thunderstorms, driven by heat and monsoon moisture. Fortunately once the “engine” for the convection, the heat of the sun, goes away, the clouds tend to break up and/or drift eastward, leaving stunningly clear starry skies.
I live not far from the authentic Wild West “ghost town” of Bodie State Historic Park, so each summer I lead five night photography workshops there.
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Sig Nordal 