Hail suddenly fell in Yantai, Shandong Province, and some hail was as big as eggs. How is this cold air formed?

Hail suddenly fell in Yantai, Shandong Province. Some hailstones are as big as eggs. At that time, cold air was mainly influenced by climate. In autumn, the temperature difference between day and night is large, and the temperature drops. Some small ice cubes rose into the air and met the clouds to form hail.

The main reason is that the temperature changes greatly. And we all know that it is autumn, so the arrival of autumn also symbolizes the appearance of cold temperatures, so some provinces and cities will have some cooling conditions. This hail also caused many vehicles to be damaged, and some trees were also attacked by sudden hail. The reason for this cold air is that the season has changed gradually like winter.

The reason for this bad weather is the season. Although summer is very hot, it is also rainy season, especially in the south. In summer, the weather is very hot. The ground temperature is rising. Water vapor on the ground evaporates into the air and condenses into small water droplets. Finally, under the action of gravity, more than a small part of the material accumulates to form large droplets. It's finally raining. When cold air goes south, it will form a cold and warm confrontation, leading to strong convective weather such as heavy rain in some areas.

Now is the harvest season. Corn is being harvested in many areas, so farmers' uncles look forward to a good weather and enough time to dry their grain, so that their grain can be sold at a good price. Now, suddenly it began to hail. Those fields with broken corn are ok. Those farmers who have no time to harvest corn are pitiful. I also hope that the affected farmers can seize the time and quickly collect grain in their own fields. I also hope that the affected people will not be too sad.

Hail disaster is a serious meteorological disaster caused by strong convective weather system. Although the occurrence range is small and the time is short, it has great momentum and intensity, and is often accompanied by sudden disastrous weather such as strong wind, heavy precipitation and sudden cooling. Hail brings huge losses to our agriculture, forestry, transportation, construction and other industries and people's lives and property every year. When the hail disaster happens, the car glass will break and even hit the car body.