The Best What Forms A Cloud References. Cirrus clouds are wispy, curly, or stringy. These aerosols are found in the troposphere, stratosphere, and mesosphere, which collectively make up the greatest part of the homosphere.

Closed cell, which is cloudy in the center and clear on the edges, similar to a filled honeycomb. Web a cloud is a mass of water drops or ice crystals suspended in the atmosphere. They are found high in the atmosphere —typically higher than 6,000 meters (20,000 feet)—and are usually made of ice crystals.