Image via Tanvi Javkar.
Kelvin-Helmholtz clouds look like breaking ocean waves, with the rolling eddies seen at the top of the cloud layers. The eddies are usually evenly spaced, making the clouds easily identifiable. Find out more about them, and see more beautiful images of these distinctive-looking clouds.
Source:
https://earthsky.org/todays-image/kelvin-helmholtz-clouds-nova-scotia-photo