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originally posted by: iamhobo
It's more than likely strong cross winds.
originally posted by: Phage
a reply to: Mianeye
Looks like it has something to do with vertical wind shear. Different wind speeds, one above the other. Where they meet you get a horizontal rotation of air. That accounts for the wavelike clouds. Apparently the contrail gets distorted by the effect as well.
originally posted by: VoidHawk
Looks like the work of a mouse to me