Why thunder and lightning are more frequent in summer? Where is lightning more likely to happen?

Why thunder and lightning are more frequent in summer? Where is lightning more likely to happen? Lightning is usually produced in the rain clouds during the development of convection, which is a long-distance discharge phenomenon in the atmosphere. China is located in temperate zone and subtropical zone, and lightning has the distribution characteristics of north and south. Yunnan, Guangxi, Guangdong, Hainan and central Qinghai-Tibet in China are lightning-prone areas, with an average thunderstorm day of more than 70 days. There are few thunderstorms in Xinjiang and Inner Mongolia, and the average number of thunderstorm days is less than days.

In big cities, Haikou, Guangzhou, Lhasa, Nanning and Kunming, thunder is the most popular, among which Haikou is nearly 1/4, and thunder can be heard. The lightning activity at high altitude with the most intensive emission shows important seasonal variation characteristics. Usually, the first thunder and lightning will be ushered in the southern region from June to March from 65438+ 10, but from a national perspective, June and August are the peak periods of lightning release. This is because summer summer rises rapidly, the atmosphere is unstable, the atmosphere is stable in winter, and there are few flashlights.

The number of disasters and accidents caused by lightning is obviously positively correlated with the lightning frequency, and the lightning frequency increases. The atmosphere is relatively high, and cold air is very easy to trigger. In mountainous and hilly areas, complex terrain may even cause lightning. Although lightning strike is a small probability event, the relocation of lightning strike is disastrous, and the partners in the above areas should actively take measures to protect it. When doing outdoor sports, it is not recommended to take out electronic equipment such as mobile phones and computers.

Hail is generally small in scope and short in time, but powerful, often accompanied by strong winds, such as strong winds and heavy rains. Hail is very harmful to crops. It will lead to more crops than crops, which will bring great losses to industry, construction, communication, electricity, transportation and human and animal safety. When you suddenly encounter hail outdoors, you should protect your head quickly and take shelter in powerful buildings. Lightning storms often occur in hilly areas, so when avoiding hail, we must do a good job of lightning protection and stay away from billboards, chimneys, telephone poles, temporary buildings, trees and so on.