This scene captures a rare atmospheric phenomenon: an anvil-shaped cumulonimbus cloud crowned with a thin, iridescent layer. The colors appear when sunlight scatters through microscopic ice crystals at the cloud’s upper boundary, producing a spectrum similar to a rainbow but formed by diffraction, not rain. What looks dramatic is simply the physics of light interacting with a rapidly rising storm column at sunset. | AstroNature

Anvil cloud is a very beautiful natural phenomenon. This forms when a large amount of warm and humid air rises. The shape of the anvil is visible from afar. We simply explain how anvil clouds form in our blog: http://bit.ly/2kjjwfh | Windy.app