Thunderclouds are formed due to strong up and down convection of the lower air heated or the upper air cooled, and are often determined by local conditions, such as terrain, temperature and humidity.In the mainland, such thunderstorms often occur in summer. They occur in the afternoon of sultry, windless and sunny summer.The heating effect of the lower air is particularly obvious on individual heights and hills, so there are many thermal thunderstorms in such places.These thunderstorms are accompanied by strong rainstorm, which develops rapidly and falls rapidly, often withhailAnd countless lightning, but the distribution of thunderstorms is extremely uneven.
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When thunderstorms are formed, there are different atmospheric conditions and topographic conditions. Generally, thunderstorms are divided intoThermal thunderstorm、Frontal thunderstormandTopographic thunderstormThree categories.In addition, some people also classify thunderstorms in winter asWinter thunderstorm。In the south of China, there are also frequent occurrences of so-called drought thunderstorms, also known asDry thunderstorm。
