A rainbow formed by a light source reflected by an extended water surface; not to be confused with a rainbow seen reflected in a still body of water. When the water is calm, the center of a reflection rainbow is at the same elevation as the sun but in the opposite part of the sky. Such a bow intersects the ordinary rainbow (primary or secondary) at the horizon. When the water is rough (which it often is under the windy conditions in the vicinity of a shower) a family of reflection bows is formed, the envelope of which produces an essentially vertical bow, which intersects the ordinary bow at the horizon.