The clouds from which rain falls. 10 amazing images

Storm Clouds And Rain Weather

The particles on the underside of the rain cloud don't have a lot of light to scatter to your eyes, so the base appears gray as you look on from the ground below.

It's pretty well-known that most clouds are white, while rain clouds are usually a darker shade of gray. But why are rain clouds so dark?
The air around you is full of water in its gaseous form, called water vapor. When the air near the ground warms, it starts to rise, taking the water vapor along with it. The air starts to cool as it rises higher into the sky, causing the water vapor to condense onto atmospheric dust from volcanoes, car exhaust and other sources. The resulting water droplets and ice crystals coalesce, or join together, to form clouds. Unlike atmospheric particles that scatter more blue light than other colors (making the sky blue), the tiny cloud particles equally scatter all colors of light, which together make up white light. However, rain clouds are gray instead of white because of their thickness, or height.

That is, a cloud gets thicker and denser as it gathers more water droplets and ice crystals — the thicker it gets, the more light it scatters, resulting in less light penetrating all the way through it.

This effect becomes more pronounced the larger the water droplets get — such as right before they're large enough to fall from the sky as rain or snow — because they become more efficient at absorbing light, rather than scattering it. by

rain front

Rain cloud
Rain cloud over the Rhine valley, view from the observation tower at the "Schauinsland" mountain, Black Forest, Baden-Wuerttemberg, Germany

Rain clouds at sunset
Rain clouds at sunset with Scottish Highland cattle at a pond in the dunes near Castricum, NL

Rainbows and Rain Clouds
Rainbows and Rain Clouds  

Dark rain clouds captured in New Mexico

Nice Rain cloud
Nice Rain cloud

Rain clouds on the Black sea
Rain clouds on the Black sea

Rain clouds on rural fields

Cumulonimbus cloud and rain 

Rain clouds and Sun