Have you ever seen a sun halo? They’re actually quite rare. See what causes a sun halo, the shapes that sun halos take on, and what a sun halo really means.
Cumulonimbus clouds are a common type of rain-making cloud. Many can climb tens of thousands of feet into the sky and can be seen from dozens of miles away. Any cloud which produces precipitation (like rain, sleet, and snow) are referred to as nimbus clouds, with cumulonimbus clouds and nimbostratus clouds being among the most common of the clouds which produce precipitation.