Bizarre cloud scared Perm


8.07.11.Vchera residents watched the sky striking, not typical of the Perm region.

Evening, July 7 Perm residents could see dramatic clouds, sky Lingering in most parts of the city. Concerned users Urban Forum upload photos and discussed atypical for the Ural-latitude phenomenon.

As it turns out, the mysterious clouds are called Mammatus or "vymyaobraznye cloud." They are rare, mainly in the tropics and are associated with the formation of tropical cyclones. Mammatus are stored in the sky from several minutes to several hours, gradually disappearing with the dying lightning storm.



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