Cloud Formations: Fallstreak Hole

Source: Wikimedia Commons
The fallstreak hole, also known as hole punch cloud or skypunch, is characterized by a circular hole formed within cirrocumulus or altocumulus clouds. These holes form when some of a cloud’s water droplets freeze into ice crystals. As the ice crystals grow, they begin to fall from the cloud’s main structure, creating a hole within the cloud. An aircraft passing through the cloud often begins this process.

Source: The Living Moon

Source: Sceneriies

Source: Wikimedia Commons
Clouds That Look Like Things

Source: Der Spiegel
Though they cannot be categorized by name, some of the coolest clouds are those that end up looking like ordinary objects. See if you can guess what these clouds look like!

Source: Iowa State

Source: Cloud Appreciation Society

Source: Cloud Appreciation Society