Dissipating Storm Clouds, Sunset. Yosemite National Park, California. September 20, 2011. © Copyright 2011 G Dan Mitchell – all rights reserved.

Sunset light on dissipating thunderstom clouds above granite slabs, Yosemite National Park.

Late on this September afternoon in the Yosemite back-country I had a good idea that something might happen around sunset, but I could not have known in advance just how intense the cloud color would turn out to be. The set-up was classic. Thunder storms had built up throughout the afternoon, and by late in the day I would see and hear large storms to my north and east – though I remained right on the edge of the storm potential as I was a bit further west. As evening approached the cloud-building forces began to diminish, leaving the tops of the larger cells unsupported, and they began to thin and stretch westward, curving up and over my location along the Tuolumne River.

Knowing that interesting light of one sort or another was probable, I walked to an area of granite slabs and bowls that I had photographed when visiting this area at the start of my trip nearly a week earlier. As I considered a few photographs of the granite and trees in that area, my attention kept being drawn to the sky. At first it remained a relatively low contrast mass of gray, though the thinning clouds started to allow views through falling virga towards more distant clouds that rose into the sunlight. Then, as the sun dropped and the foreground lost the direct light, the clouds began to light up and take on wildly saturated colors. (A technical note: in many of the photographs, though not in this one, the dynamic range between cloud highlights and foreground was so large that it required multiple exposures separated by up to five stops to capture it all!)

I moved to the base of the granite bowl in which I had photographed rocks and small trees a week before when I saw these spectacular clouds building to the north west. The color was simply unbelievable – and you can see that the intense saturated light was not just in the sky, but that it also colored the granite near the bottom of the image. For this photograph I used a short focal length to try to take in a large section of the flowing and wildly shaped and colored clouds.

G Dan Mitchell is a California photographer whose subjects include the Pacific coast, redwood forests, central California oak/grasslands, the Sierra Nevada, California deserts, urban landscapes, night photography, and more.
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