Clouds, fog and precipitation

alt=|thumb|upright=1.5|Cloudscape over Borneo, taken by the [[International Space Station]]

thumb|upright=1.35|Light fog in Bangladesh

In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls from clouds due to gravitational pull. The main forms of precipitation include drizzle, rain, rain and snow mixed ("sleet" in Commonwealth usage), snow, ice pellets, graupel and hail. Precipitation occurs when a portion of the atmosphere becomes saturated with water vapor (reaching 100% relative humidity), so that the water condenses and "precipitates" or falls. Thus, fog and mist are not precipitation; their water vapor does not condense sufficiently to precipitate, so fog and mist do not fa

solid frozen water molecules

narrow corridor or filament of concentrated moisture in the atmosphere

weather phenomenon in which an air mass forms over a body of water