Audio Guide：

Severe weather refers to drastic atmospheric changes within a short period of time, such as thunderstorm, strong wind, torrential rain, etc. Most drastic weather phenomena occur in the troposphere. In addition, the formation of flood, hurricane, tornado, thunder and lightning is related to cumulonimbus, and might cause various degrees of damage under different situations and in different environments.

Now, on the touch screen, you can observe the formation of severe weather conditions, like flood, hurricane, tornado, thunderstorm, heat wave, lightning and thunder.