What are all kinds of weather phenomena made of?

① Air mass-→ air mass classification (cold air mass)-→ cold air mass interface-front-→ front classification (cold front, warm front, quasi-static front).

② Physical characteristics of air mass-→ physical change process of cold and warm fronts.

③ From high pressure to low pressure-→ the deepening of physical process-→ possible weather phenomena.

Weather refers to the atmospheric state comprehensively reflected by various meteorological elements in a certain area and within a certain period of time. Yin, sunny, wind, rain, thunder, electricity, fog, frost and snow in the atmosphere are all weather phenomena, and their generation is closely related to the activities of the weather system, and the weather is closely related to human life, society and economic activities.