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Kelvin-Helmholtz wave clouds at Big Horn Mountains near Sheridan, Wyoming, Dec. 6, 2022. (Rachel Gordon) ...
On Dec. 2, 2024, huge, towering waves appeared in the sky above Montreal, Que. The clouds, called Kelvin-Helmholtz clouds, form when a layer of faster-moving wind sits above a layer of slower ...
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 ...
This causes the cloud to take on the shape of rolling waves. Called Kelvin Helmholtz clouds, or just wave clouds, these clouds are a sign of turbulence in the air.
Anne Wilkie posted on X. What she saw was a Kelvin-Helmholtz wave cloud, named after Hermann von Helmholtz, who discovered the atmospheric instability that leads to this phenomenon.