Precipitation (rain, drizzle, snow, ice pellets, hail, etc.) falling from a cloud and reaching the Earth’s surface.
Mostly encountered with Altostratus, Nimbostratus, Stratocumulus, Stratus, Cumulus and Cumulonimbus.
The sections, paragraphs and subparagraphs of this manual that together comprise Annex I to the Technical Regulations (WMO-No. 49) have the legal status of standard practices and procedures; they are enclosed in gray-shaded boxes, like this example.