Then they notice a cloud formation that looks like a dolphin, or a boat, or letters of the alphabet. But few are fortunate enough to see Kelvin-Helmholtz clouds, which look like a pattern of ocean ...

Kelvin-Helmholtz instability creates beautiful wave-like cloud patterns in the sky, or billow clouds. Different layers of the atmosphere can have different densities with air moving at different ...

Rare clouds could be seen from parts of the Highlands on Saturday afternoon. Called Kelvin Helmholtz, they resemble rolling ocean waves and similar patterns have been seen by astronomers on ...

Rare clouds could be seen from parts of the Highlands on Saturday afternoon. Called Kelvin Helmholtz, they resemble rolling ocean waves and similar patterns have been seen by astronomers on Jupiter ...