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Richard Walker

Unusual cloud formation

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A friend spotted these unusual clouds. They seem to be cirrus but they look so distinctive that I wondered if they had a special name.

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Steven McDonald

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Interesting! I wonder how they form. Sadly, I do not know if there is a name for them.
SXR103 chemistry is fun (2008) :-)

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I wonder if they are plane contrail cirrus?

 I see similar formations here after a plane has passed high overhead. They start as a clear line and then gradually are blown into cirrus shapes by air currents.