When sunlight passes through water droplets in the air – whether from rain, mist or ... arc of colors. For a rainbow to appear, three conditions must align: the sun must be behind the observer ...

We see this as a white light, but in fact it’s made up of many different ... So when the sun is behind you and the rain in front of you, you see a rainbow of colours reflected back from inside ...

Storms provide a prime opportunity for rainbows as their volatility often means there is rain in one direction but sun in another. For someone to perceive a rainbow ... to make the two rainbows ...