Weather fusion or weather upheaval

1. Suddenness of change: "Weather fusion" emphasizes the suddenness of weather change, that is, the change occurs in a short time, which makes people feel unexpected and sudden. "Upside down" pays more attention to the severity of the change itself, that is, the change is large, and does not necessarily emphasize the suddenness of the change.

2. Change type: "Weather fusion" can include changes of various meteorological elements, such as temperature, humidity, wind speed, precipitation, etc., while "weather upheaval" focuses more on the severity of changes of meteorological elements, such as extreme weather phenomena such as heavy precipitation, strong wind and extreme high temperature.

3. Scope of influence: "Weather fusion" is usually the result of the interaction of various meteorological factors, with a wide range of influence, involving multiple regions or countries. The "weather upheaval" is more concentrated in the changes of individual areas or specific meteorological conditions, and the scope of influence is relatively small.