RAINBOW RAIN CURTAINS OVER THE RIVER

RAINBOW RAIN CURTAINS OVER THE RIVER.

What makes it happen: when the Sun is low behind you and rain is falling ahead, each raindrop acts like a tiny prism—bending and reflecting sunlight into the rainbow angles. When the rain comes in separate sheets (“rain curtains”), the colors can look like multiple parallel bands, and the river doubles the show by mirroring the spectrum on the surface.

Glacier National Park, Montana ... USA