Pileus or scarf clouds form atop a growing, dense, puffy and white cumulus cloud, due to updrafts from a thunderstorm. Jam Press. The rainbow halo is actually an atmospheric optical phenomenon ...

The clouds must be very thin and made of ice crystals or water droplets of uniform size. So cloud iridescence usually happens in lenticular or alto-cumulus, cirrus and cirrocumulus clouds.

The ‘rainbow cloud’ was spotted on August 21 in the sky above China's Haikou. Pileus cloud What was seen in the skies of Haikou on August 21 is called a 'Pileus cloud', also known as a ‘cap ...

A spectacular and vanishingly rare 'rainbow scarf cloud' dazzled residents in China. The unique phenomenon was captured over the city of Haikou on the island of Hainan on August 21.

An iridescent pileus cloud is formed when water vapor particles warmer than the surrounding air move upward to form a cumulus cloud. It pushes air above in layers, in a cauliflower-shaped formation.

These are cumulus clouds. They resemble cotton balls and form when it's warm and humid," he said. Cappucci went on: "Because the sun is near the horizon—it's sunset—it's beneath the cloud.

There are 10 main cloud types, including the fluffy-looking cumulus clouds seen here. Image: AKARADECH MARK II / Getty Images Get the Popular Science daily newsletter💡 ...

Cumulus: Detached, bright white, dense clouds and with sharp outlines that develop vertically in the form of rising mounds, domes or towers. The bulging upper parts often resemble a cauliflower.

“The weight of a cloud depends on its size and density, but a typical cumulus cloud can weigh around 5,00,000 kg,” the answer ...

These cumulus clouds are a type of convection cloud that forms under certain conditions with a colder layer of air ... Rainbow in High Clouds Over Wilkesboro, North Carolina -Picture Taken by ...