Unique Clouds Seen Over Atlanta

By: CNN
By: CNN

Mother Nature put on quite a show Tuesday in the skies over Atlanta.
Check out these fast moving cloud formations.

They are nicknamed "river of the sky" because of their flowing motion.
The scientific name is undulatus asperatus.

The clouds form when two fronts meet but scientists can't agree if they are caused by a cold-warm front or a dry-moist front.


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