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Altostratus undulatus cloud

earth science Maturity 5-7 Next article →

Some clouds look like wavy lines. They can look like long strips. These clouds sit high in the sky.

They may have wavy bottoms. You might not see them with your eyes. These clouds form when air moves in a special way.

They often show up over the southern plains. This happens when the ground is cool.

The wavy strips stay near a layer in the air. Some people call them billow clouds. Others call them wave clouds. They are very pretty to see.

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