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The energy of thunderstorms is supplied by the unstable atmospheric energy converted by solar radiation. Every year in the spring, the solar radiation increases, and the instability in the atmosphere increases. The thunderstorms originate in the spring and in midsummer, the solar radiation is intense, and the atmosphere is unstable and can be stored more frequently. The thunderstorms are frequent. After autumn and winter, the solar radiation weakened, and thunderstorms gradually decreased. However, as a result of global climate change and atmospheric pollution, lightning strikes often occur in winter. It is reported that the intensity of each lightning can be as high as 1 billion volts, and the power of a medium-strength thunderstorm is about 100,000 kV, which is equivalent to the output power of a small nuclear power plant.
The starting month for the emergence of thunder and lightning generally starts from south to north, gradually delays from east to west, and usually ends in September to October. Thunderstorms have also been accompanied by severe weather such as heavy rain, high winds, hailstorms and tornadoes. At the same time, there are daily changes in lightning, lightning on the mainland is generally more in the daytime, the concentration period from mid-afternoon to evening. Many river valleys in the coastal and western mountainous regions are prone to thunderstorms at night. After the emergence of thunder and lightning, the general duration is mostly 1-2 hours, and the southern region has a longer duration than the northern region.
Thunderstorms are caused by thunderstorms, and thunderstorms are often formed with strong convective weather, which is determined by atmospheric circulation and local meteorological factors. Thunderstorms are discharges between clouds and clouds or between clouds and ground in a cumulonimbus cloud, and are accompanied by spark discharges. When a powerful current passes through it, the air rapidly expands to produce a loud noise, namely lightning. Lightning has branches, lamellae, ribbons, and spheres, with branching being the most common.