Weather refers to how long it takes for a meteorological phenomenon to occur.

Refers to meteorological phenomena that occur in a short time (from a few minutes to a few days), such as thunderstorms, hail, typhoons, cold waves, strong winds, etc.

It refers to the ever-changing atmospheric state, not only in a certain time and space, but also in a certain time interval. So it can be understood as a general term for weather phenomena and weather processes.

Weather phenomenon refers to various natural phenomena in the atmosphere, that is, the comprehensive expression of the spatial distribution of various meteorological elements in the atmosphere (such as temperature, pressure, humidity, wind, clouds, fog, rain, snow, frost, lightning, hail, acid rain, etc.). ) in an instant.

The weather process is the change process of weather phenomena with time in a certain area.