Why does it hail in summer, and the harm of hail?

1, the weather is hot in summer, and the sun is scorching the earth, which is easy to produce a lot of hot and humid air near the ground. Hot and humid air rises rapidly and the temperature drops rapidly, sometimes even as low as -30℃. The water vapor in hot air will condense into water droplets when it meets cold air, and quickly freeze to form small ice beads. Small ice beads roll up and down in the clouds, constantly absorbing the surrounding water droplets to condense into ice, getting heavier and heavier, and finally falling from the sky, which is hail. It can be seen that hail can only be produced when the hot and humid airflow rises strongly.

2. Hail is a serious meteorological disaster caused by strong convective weather system. Although it appears in a small range and in a short time, it is fierce and strong, and is often accompanied by sudden disastrous weather processes such as strong winds, heavy precipitation and sharp cooling. China is a country with frequent hail disasters. Hail brings huge losses to agriculture, construction, communication, electricity, transportation and people's lives and property every year.