Tree, Granite Slabs, Evening Storm Clouds. Yosemite National Park, California. September 20, 2011. © Copyright 2011 G Dan Mitchell – all rights reserved.

A tree and granite slab are lit by brilliant sunset light from a dissipating evening thunderstorm, Yosemite National Park.

This was another of those sometimes-surprising bursts of evening Sierra color that results in effects so gaudy that they almost seem unreal – but this is real. I was camped down in a valley among trees so I wasn’t initially expecting much in the way of spectacular sunset photography. Instead, I planned to take advantage of the early shadows in the valley and get some evening photographs under soft light without any direct sun at all. I first worked some moving water where the nearby river flowed across granite slabs, and then I contemplated photographing some small plants in deeply cracked and patterned granite. As a worked my way across this granite, I remembered a small tree on the other side of the bowl that had looked like an interested photo subject a few days ago, so I walked over to that area where the tree stands in a shallow granite bowl.

Earlier in the afternoon I could see huge thunderheads building up to my east, but they did not move far enough west to affect me with anything more than a bit of gray sky. However, as the clouds built up to higher elevations, their tops began to take on the familiar “anvil” shape and the upper portions of the “anvils” began to spread to the west and out over my position. This is a classic setup for potentially spectacular evening sky color. Near sunset the clouds can pick up intense red/orange coloration from the sun setting in the west. At the same time, the storms begin to dissipate, creating semi-transparent “curtains” of virga (falling rain that doesn’t reach the ground), unusual shapes along the bottoms of the clouds, clouds emerging out of the gray murk as the sunset light picks them up.

As I arrived at my little tree, I quickly lost interest in that subject as the cloud light show began. First the bottom of the thunderhead began to turn brilliantly orange and red. Then the lower reaches of the small storm began to produce very unusual cloud shapes including mammatus clouds. Virga produced a brightly colored by semi-transparent scrim. It quickly became so bright that the red/orange colors began to wash the granite bowl, and I turned my camera from the little tree to the uphill granite surfaces and the clouds above.

In this vertical format image the tip of a small tree extends above the top of a dome-like area above me, and the brilliant light from the clouds washes the dome with color. The colors here have not been “amped up” in post – in fact, I’ve actually toned some of them down a bit!

G Dan Mitchell Photography
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