RAINBOW RIPPLE SKY OVER THE OCEAN

 RAINBOW RIPPLE SKY OVER THE OCEAN

This look is usually a mix of thin, high cloud layers (often altocumulus/cirrus) and strong sunlight at a low angle. When the sun hits tiny ice crystals or very fine droplets, the light can split into soft bands of color — a phenomenon related to iridescence. The “ripple” pattern comes from wave-like structures in the cloud sheet (gravity waves in the atmosphere), making the color spread in textured lines instead of one smooth arc.

Why it pops so hard here:

Low sun + clean horizon gives maximum contrast.
A uniform cloud layer acts like a screen.
Moist sea air can add haze that makes the gradients look even richer.

Extra detail: these colors change fast. If the wind shifts the cloud sheet by even a little, the bands can fade, slide, or re-form in seconds.

Where you can see that (best chances):

Coastal beaches right after a passing front (Pacific Northwest, Northern California, UK/Ireland coasts)
Florida / Gulf Coast on humid evenings with thin high clouds
Big open water anywhere—lakes work too—when the sky has that “sheet of ripples” look near sunset