What is a Fire Rainbow?

By Justin Povick
10/18/2012 10:39:27 AM

This stunning type of weather phenomenon is neither a fire or a rainbow. The reason lies behind the process. Rainbows are formed by refraction and and reflection of light.

Fire rainbows, technically called iridescent clouds, form in developing clouds, often in thunderstorms. In these clouds uniformly sized water droplets bend light, producing an array of breathtaking colors.

This beautiful weather phenomenon is more common than you might think. Some of the only spots on earth that see a lower frequency include central and northern Europe.