Why does it hail when it is so hot in summer?

In summer, due to the high ground temperature and direct sunlight, a lot of water will evaporate and water vapor will rise to the sky quickly. The condensation point passing through the atmosphere will quickly condense into small ice crystals and then fall, but in the process of falling, small water droplets will be encountered and mixed together to form larger snow beads. In the process of falling, these snow beads will meet the rising airflow and be taken above the condensation point of the atmosphere. When they go down and up, they will go back and forth. In the process of rolling for many times, the snow beads are getting bigger and bigger, and they are wrapped in ice clothes layer by layer.

When these snow beads get bigger and heavier, the rising airflow can no longer be trapped in the final falling process, and finally fall from the sky to the ground to form hail. These hailstones are large and small, most of them are spherical and some are irregular. Generally speaking, it is because of the hot summer that a strong updraft will be generated and hail will be formed above the condensation layer.

Extended data:

It is found that there is an embryo in the dome, and the outer layer is usually wrapped with 4 to 5 layers of ice, one layer is transparent and the other layer is opaque, like a sandwich biscuit structure. Because we will think that hail is wrapped layer by layer. Especially, one day in May of 1894, the above idea was verified in a hail in the United States, because people found a special hail with a diameter of 15 to 20 cm. Look carefully, it's not a hail embryo, it's a turtle.

Because there was a whirlwind before the hail at that time, the tortoise was probably taken to a high place in the atmosphere, and then rolled back and forth with layers of ice shells by the rising airflow, and finally landed on the ground.