Kelvin-Helmholtz clouds, also known as fluctus clouds, is a rare phenomenon that's easy to miss because it disappears so quickly. But its distinct water-like waves makes it a favorite among cloud ...

In the atmosphere, which acts similar to a fluid, this happens between two layers of different air densities. Kelvin-Helmholtz instability has also been spotted on the sun and Saturn.

Posted 2:37 a.m. Apr 28 - Updated 3:00 a.m. Apr 28 Kelvin-Helmholtz wave clouds in Cameron, NC - Photo taken by Martina Renaud By Chris Michaels , WRAL meteorologist ...

High‐Frequency Gravity Waves and Kelvin‐Helmholtz Billows in the Tropical UTLS, as Seen From Radar Observations of Vertical Wind Journal: Geophysical Research Letters Published: 2024-11-16 DOI: ...

A woman in Calgary, Alberta, Canada, saw a strange, wavy cloud in the sky on Feb. 22, 2025, and took to X, formerly known as Twitter, to crowdsource an answer. "Does anyone know what is happening ...

Kelvin-Helmholtz wave clouds at Big Horn Mountains near Sheridan, Wyoming, Dec. 6, 2022. (Rachel Gordon) Kelvin-Helmholtz wave clouds at Big Horn Mountains near Sheridan, Wyoming, Dec. 6, 2022.