What phenomena does the weather contain? What are the quantifiable elements?

Weather phenomenon (weather phenomenon)

Various physical phenomena that occur in the atmosphere (including some on the ground). Such as rain, snow, hail, fog, dew, frost, tornado, haze, thunderstorm, aurora, squall and so on. Weather phenomenon is the comprehensive result of various physical processes in the atmosphere.

Weather phenomena refer to precipitation, water vapor condensate (except clouds), frozen matter, dry suspended matter, light and electricity phenomena produced in the atmosphere and on the ground, and also include some wind characteristics.

All kinds of weather phenomena are produced under certain weather conditions, reflecting different physical processes in the atmosphere and weather changes, which is one of the basis of weather forecast. Observing weather phenomena not only accumulates data for understanding the climate situation of a place, but also is indispensable for national economic construction.

Some disastrous weather phenomena, such as gale, rainstorm, hail, tornado, snowstorm and dense fog, directly affect agriculture, animal husbandry and transportation. At present, there are 34 weather phenomena observed at various stations.