The droplets of water in a cloud have weight, so gravity gradually polls them down and they sink lower and lower. As most of them fall, they reach a warmer layer of air, and this warmer air causes them to evaporate. So here we have clouds that don’t produce rain. But suppose the air beneath a cloud is not warmer, but very moist air.
Here is what I found. there are three in which the clouds produce rain after cooling of air in the clouds:
Convectional Rain This one normally happens in summer. When temperatures are really hot, the ground becomes hot too. Frontal Rain As the warm air rises, it meets the cold air.
It should be noted that condensation by itself does not cause precipitation (rain, snow, sleet, hail). The moisture in clouds must become heavy enough to succumb to gravity and return to earth’s surface. This occurs through two processes. In cold clouds ice crystals and water droplets exist side by side.
Our answer was These clouds are not actually behind the sun, rather this is an optical illusion caused by the way cameras pick up light. This is fully explained on the webpage I linked below, but I will give a summary. Cameras have a limit to how bright of a light they can see. Some clouds let more light through than others .
Why do clouds look dark before rain?
Clouds appears black :. In th atmosphere any object’s colour is dependent on the ability to reflect wavelengths of light. When an object does not reflect any colour, it appears black. Thayswhy tiny droplets of water in rain clouds: Scatter the white light of the sun. Red is scattered first, and violet the last. At high altitude no rays of the sun reach the bottom of the cloud., and more items.
This is why, storm clouds are dark black or grey. Explanation: Most clouds appear white, because sunlight reflects off the water droplets. If the clouds are thick, the droplets scatter or absorb the light and less solar radiation can travel through them. This is why, storm clouds are dark black or grey.