What does hail mean?
Hail is also called "hail", commonly known as hail and "bully", and in some areas it is called "Lengzi" (such as Xuzhou and Gansu), which is a weather phenomenon and is the most common in summer or at the turn of spring and summer. They are ice particles as small as mung beans and soybeans and as big as chestnuts and eggs.
The main features of hail are as follows:
1, with strong locality, the impact range of each hail is generally tens of meters to thousands of meters wide and hundreds of meters to more than ten kilometers long.
2. The duration is short. A rainstorm or hail usually lasts only 2 ~ 10 minutes, and a few last more than 30 minutes.
It is greatly influenced by the terrain. The more complex the terrain, the greater the possibility of hail.
4. There are great changes from year to year. In the same area, some years appear many times in succession, and some years rarely or never appear.
5. The occurrence area is wide, and it can occur in a wide climatic zone from subtropical zone to temperate zone, but the frequency of occurrence is mostly in temperate zone.