SEE ALSO: Rare clouds make a wave over Montreal The best chance of spotting Kelvin-Helmholtz clouds is on windy days during sunrise or sunset. At these times, the lower cloud layers tend to be cooler, ...

This causes the cloud to take on a beautiful wave-like appearance. Towering Kelvin-Helmholtz clouds over Montreal on Dec. 2, 2024. (Sebast Poulin/Submitted).

Nasa's Parker Solar Probe has captured unprecedented close-range footage of a powerful coronal mass ejection (CME), revealing turbulent flows and Kelvin-Helmholtz instabilities near the Sun ...

The best chance of spotting Kelvin-Helmholtz clouds is on windy days during sunrise or sunset. At these times, the lower cloud layers tend to be cooler, making the phenomenon more likely to occur.