Asperitas clouds ahead of the rain

Kent Reinhard captured these rare asperitas clouds on June 10. They’ve been described as “… as if viewing a roughened sea surface from below.”

Gray-colored clouds, which look somewhat like mammatus clouds, but with a smoother undersurface overall.

View at EarthSky Community Photos. | Asperitas clouds, caught on June 10, 2019, by Kent Reinhard in Bennet, Nebraska. The World Meteorological Organization officially recognized this type of cloud in the 2017 version of its International Cloud Atlas. It was the first new addition to the Atlas in over half a century. See more asperitas clouds, and learn how they came to be Earth’s newest officially recognized cloud.

Deborah Byrd