In the chilly winter, thunder can sometimes be heard, while the hot summer often brings hailstorms. Such conflicting weather phenomena occur according to natural laws.
During summer, the sun seems to scorch the earth, and hot air continuously rises into the atmosphere. As one ascends, the temperature drops, causing the rising hot air to meet cold air, which condenses into water droplets and forms clouds. These clouds accumulate across the sky, and when they eventually merge into heavy, dark clouds, it signals the onset of rain showers.
The phenomenon of thunder and lightning results from the interaction between negatively charged clouds and positively charged thunderstorm clouds.
In addition to the water droplets within thunderstorm clouds, there is also a large quantity of tiny ice particles. These water and ice particles constantly move with the updrafts and downdrafts of air. Each time an ice particle descends, it is immediately “dressed” in a new layer, sometimes even combining with snowflakes. After multiple cycles of rising and falling, the volume of the ice particle increases. When the updrafts from the ground are no longer strong enough to support the ice particles, they will fall to the ground with great force.
As a result, the shape of hail resembles that of an onion: a white core in the center surrounded by layers of ice.
