Kelvin–Helmholtz instability - Wikipedia
The Kelvin–Helmholtz instability (after Lord Kelvin and Hermann von Helmholtz) is a fluid instability that occurs when there is velocity shear in a single continuous fluid or a velocity difference across the interface between two fluids.
Kelvin-Helmholtz clouds look like ocean waves - EarthSky
Dec 3, 2023 · Clouds that look like waves are rare and beautiful. These clouds – known as Kelvin-Helmholtz clouds or fluctus clouds – might have been the inspiration for Van Gogh’s painting Starry Night.
Have You Seen Wave Clouds? Kelvin-Helmholtz Clouds Explained
Wave clouds are unique & rare cloud formations in the shape of breaking ocean waves as seen from the side. Here's why and how Kelvin-Helmholtz wave clouds form. (And the best places to see them!)
The Definition of a Kelvin-Helmholtz Cloud - ThoughtCo
Mar 11, 2019 · What Are Kelvin-Helmholtz Clouds? Kelvin-Helmholtz is the scientific name for this impressive cloud formation. They are also known as billow clouds, shear-gravity clouds, KHI clouds, or Kelvin-Helmholtz billows.
Kelvin-Helmholtz: Rare wave clouds amaze sky-watchers in Wyoming - BBC
Dec 8, 2022 · Stunned sky-watchers in the US state of Wyoming have snapped photos of a rare cloud formation crashing across the horizon like ocean surf. "This was special and I immediately knew I needed to ...
Kelvin-Helmholtz Clouds - Center for Science Education
Kelvin-Helmholtz clouds look like breaking waves in the ocean. After wind blows up and over a barrier, like a mountain, the air continues flowing through the atmosphere in a wavelike pattern. Complex evaporation and condensation patterns create the capped tops and cloudless troughs of …
Rare wave clouds captured in North Yorkshire sky - BBC
Mar 26, 2025 · Known as Kelvin-Helmholtz clouds, they form when a faster stream of air moves above rising air below. According to the Met Office website, Kelvin-Helmholtz clouds are "an extremely rare...
Fluctus - Cloud Appreciation Society
The fluctus cloud, also known as the Kelvin-Helmholtz wave cloud, looks just like a series of enormous waves breaking on the shore. It is rare, fleeting and the favourite of surfing CloudSpotters.
Kelvin-Helmholtz cloud - Met Office
What are Kelvin-Helmholtz clouds? Resembling evenly spaced rolling ocean waves, Kelvin-Helmholtz are one of the most striking and rare cloud types. How do Kelvin-Helmholtz clouds form?
Kelvin-Helmoltz Clouds: Rolling Waves in the Sky (PHOTOS)
Nov 12, 2016 · Clouds resembling breaking ocean waves appeared in the skies above Breckenridge, Colorado, in the final week of October. The rolling, wave-like cloud formations are called Kelvin-Helmoltz...