Cirrocumulus Sky

November 11, 2005

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Provided by: Dave Kerr
Summary authors & editors: Dave Kerr; Jim Foster

The photo above showing an attention getting cirrocumulus sky was taken at sunset from Turtle Creek, Pennsylvania on September 4, 2005. These high altitude clouds (greater than about 15,000 feet or 4,575 m) are often, but not always, aligned roughly parallel to the direction of the wind. From the perspective of the viewer, the cloud streets seem wider overhead than towards the horizon, but of course this isn't the case. The lower and darker appearing stratus clouds nicely accent this mackerel sky.

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