On Dec. 18, KOIN meteorologist Josh Cozart filmed a rare, roiling cloud formation called undulus asperatus (aka undulatus asperatus, or just asperatus) over Seaside. It’s said these clouds happen mostly in the U.S. plain states, which makes Seaside an interesting location for such a phenomenon.

According to Meteorology News, in 2009, this was the first new cloud type to be named in over 50 years by the Cloud Appreciation Society. But there’s still no official recognition after more than a decade from the International Cloud Atlas, which is part of the ultimate authority on such things, the World Meteorological Association.

In 2009, Cloud Appreciation Society founder Gavin Pretor-Pinney, who first identified the asperatus cloud from photographs sent in by members of the society, noted that “it is a bit like looking at the surface of a choppy sea from below. It looks very stormy, but some of the reports we have been getting suggest that they tend to break up without actually turning into a storm.” (Screenshot: Josh Cozart/KOIN)