Precipitation is water released from clouds in the form of rain freezing rain sleet snow or hail. Stated on the Essay of Modifications of Clouds in 1803 by Luke Howard there is a special rainy cloud category that combines the three forms of clouds CumuloCirroStratus called Nimbus an ancient Latin word that means Rain or Rain Storm. Skywatchers Guide To Cloud Identification Weather And Meteorology Clouds Cloud Type Meteorology 84 This term is used to describe clouds that produce precipitation. . A cumulus B cirrus C stratus D alto E nimbo 85 The most important process involved in cloud formation is __________. Describe Produce Term wallpaper. Describe Produce Term wallpaper. Most precipitation falls as rain. This cloud sometimes produces mares tails a. These clouds are often called fair weather clouds. This cloud may develop an anvil head Cumulonimbus. Therefore altocumulus clouds are mid-level cumulus clou...