The glass of a hail truck in Gansu was smashed and a big hole was smashed. Why is hail so harmful?

The glass of a hail truck in Gansu was smashed and a big hole was smashed. There are two reasons for the great harm of hail, one is the size of hail formation, and the other is the speed of hail landing.

1. Extreme hail weather in Gansu.

Hail is a kind of natural disastrous weather, which is fatal to agriculture. Hail occurred in Kongtong District, Pingliang, Gansu Province. The maximum diameter of hail can reach about 2 cm and the duration is about ten minutes. According to local residents' memories, when the hail occurred, it was covered with dark clouds and strong winds, and then dense hail fell from the sky. The scene was terrible. After the hail ended, many car windows parked outdoors were smashed out of big holes. Fortunately, there was no one outside, otherwise it would have been smashed.

Second, why is the hail so harmful?

Hail is no stranger to everyone, and all regions in China have suffered from hail disasters to varying degrees. Hail is very harmful, such as destroying crops, smashing cars and hurting pedestrians. Why is hail so harmful? There are two reasons for hail hazard, namely, the size of hail formation and the speed of hail landing.

Hailstones in different areas vary in size, some as big as eggs and some as small as rice grains. The harm caused by different hail sizes is different, and the reasons leading to different hail sizes are closely related to the formation process of hail. Strong convective weather will repeatedly push the hail to the high altitude, and the high altitude temperature will be low, and the hail will be covered with water droplets, forming more and more hail. The greater the hail, the greater the harm to buildings, crops, pedestrians and vehicles.

Everyone should know that throwing objects at high altitude is a very dangerous behavior, and the speed and damage of hail falling from the sky are no less than throwing objects at high altitude. Generally, hail exists in the ice layer, and the lowest height of the ice layer is about 8 kilometers. According to the principle of free fall, the higher the hail position, the greater its speed and the greater the impact damage. In the extreme weather of hail in Gansu province, the hail is small in size, but its speed is high, so it will cause outdoor vehicles to be smashed.

Third, to sum up.

There are two reasons for the great harm of hail, the size of hail formation and the speed of hail landing.