Find out more about the clouds in the sky including what clouds are made of and the different types of clouds.
Otherwise known as 'The King of Clouds', cumulonimbus clouds exist through the entire height of the troposphere, usually characterised by their icy, anvil-shaped top.
The fluffy, cauliflower-shaped cumulus are one of the most common and distinctive types of cloud. All cumulus clouds develop as a result of convection.
Stratocumulus cloud consists of large, rounded masses of stratus that form groups, lines or waves.
Stratus clouds tend to be featureless, low altitude clouds that cover the sky in a blanket of white or grey.
Altocumulus clouds are generally associated with settled weather and will normally appear white or grey with shading.
Altostratus evolves as a thin layer from a gradually thickening veil of cirrostratus and is usually grey or blue in colour with very few features.
Nimbostratus clouds are dark, grey, featureless layers of clouds, thick enough to block out the sun and produce persistent rain.
All high clouds are a type of cirrus, a common cloud that can be seen at any time of the year.
Cirrocumulus are a relatively rare cloud forming ripples which may resemble honeycomb.
The thin, layered Cirrostratus cloud is composed of ice crystals and forms a veil that covers all or part of the sky.
Noctilucent clouds are extremely rare very high clouds seen in the night sky, usually on clear, summer nights.
Mammatus clouds are some of the most unusual and distinctive clouds formations with a series of bulges or pouches emerging from the base of a cloud.
In this article we find out more about what banner clouds are and how they form.
Funnel clouds or 'tuba' are extending, spinning fingers of cloud that reach towards the ground, but never touch it. When they do reach the ground they become a tornado.
Altocumulus castellanus clouds take their name from their resemblance to the turrets of castles and are often a warning of thunderstorms.
When rain falls from a cloud but doesn't reach the ground it can create wispy tails from clouds known as virga.
A fallstreak hole (also known as a holepunch cloud) forms when part of the cloud layer forms ice crystals which are large enough to fall as a 'fallstreak'.
The newest cloud type, asperitas formations are rare and resemble rippling ocean waves in the sky.
Arcus clouds are low-level, wide ranging clouds typically associated with powerful storm clouds and thunderstorms.
Lenticular clouds are a distinctive cloud formation resembling lenses and are thought to be an explanation for some supposed UFO sightings.
Sometimes known as mother of pearl clouds for their distinct appearance, nacreous clouds are laced with vivid iridescent light from below the horizon.
Resembling evenly spaced rolling ocean waves, Kelvin-Helmholtz are one of the most striking and rare cloud types.
Last updated: 6 August 2014