The fluffy, cauliflower-shaped cumulus are one of the most common and distinctive types of cloud. All cumulus clouds develop because of convection.
Height of base: 1,200 - 6,500 ft
Shape: Cauliflower of fluffy
Latin: cumulus - heap
Precipitation: Occasional rain or snow showers
Cumulus clouds are detached cauliflower shaped clouds usually spotted in fair weather. If they get bigger they can sometimes produce showers. The top of these clouds are mostly brilliant white when lit by the sun, although their base is usually relatively dark.
All cumulus clouds develop because of convection. As air heated at the surface is lifted, it cools and water vapour condenses to produce the cloud.
Near coasts, cumulus may form over the land by day as a sea breeze brings in moist air, which is then warmed by the land, and over the sea during the night as a breeze blows off the land over the sea, which is now warmer than the land.
Last updated: 7 August 2014