China is a country with frequent hail disasters. Hail brings huge losses to agriculture, construction, communication, power, transportation and people's lives and property every year. The following is why I also hail in summer. Let's have a look. It must be helpful to you.
Why does it hail in summer
Hail is commonly known as hail and "lengzi" in some areas. It is a spherical or conical ice block, which is composed of transparent layer and opaque layer. Like rain and snow, it falls from the cloud, but the hail cloud is a very strong cumulonimbus cloud, and only the particularly strong cumulonimbus cloud can hail.
The diameter is generally 5 ~ 50mm, and the maximum can be more than 10cm. The larger the diameter of hail, the greater the destructive force. Hail will appear from time to time when summer comes.
The weather is hot in summer, and the sun scorches the earth, which is easy to produce a large amount of hot and humid air near the ground. The hot and humid air rises rapidly and the temperature drops rapidly, sometimes as low as - 30 ℃. The water vapor in the hot air condenses into water droplets when touching the cold air, and soon freezes to form small ice beads. Small ice beads roll up and down in the clouds, constantly absorb and condense the surrounding water droplets into ice, become heavier and heavier, and finally fall from high altitude. This is hail. It can be seen that hail can be produced only when the hot and humid air flow rises strongly.
How to prevent hail correctly
1. Pay attention to weather changes and prepare for hail and lightning protection.
2. The elderly and children should not go out and stay at home.
3. Properly place outdoor objects vulnerable to hail.
4. Drive poultry, livestock, etc. to a safe place with a canopy.
5. If you are outdoors, protect your head with rain gear or other substitutes, and transfer to a safe place as soon as possible.
6. If you are driving, please drive the vehicle into a sheltered place as soon as possible. If the vehicle is parked in the open air, please cover it as much as possible to reduce damage.
7. Do not enter isolated huts, sentry boxes and other buildings or under big trees.
What's the harm of hail
Hail disaster is a severe meteorological disaster caused by strong convective weather. Although its scope is small and its time is short, it is fierce and intense, often accompanied by paroxysmal disastrous weather such as strong wind, heavy precipitation and sharp cooling.
China is a country with frequent hail disasters. Hail brings huge losses to agriculture, construction, communication, electric power, transportation and people's lives and property every year. According to relevant statistics, the economic losses caused by hail in China reach hundreds of millions or even billions of yuan every year.
There is no doubt that heavy hail is the most Disastrous Hail to mankind.
Hail is usually no more than the size of a softball. Some hailstones are very large, and 80 pounds of hail once fell from the sky.
In China, hail occurs from late spring to summer. In summer, the sun is strong, the ground temperature is as high as dozens of degrees, and a large amount of water vapor rises sharply, but the air temperature is very low. The small water droplets in the cloud condense into ice crystals, and the small ice crystals become large ice crystals. The large ice crystals roll up and down in the cloud, wrapped in layers of ice, and form hail.
In addition to Guangdong, Hunan, Hubei, Fujian, Jiangxi and other regions with less hail, other regions are subject to varying degrees of hail every year. Especially in the mountainous and hilly areas in northern China, the terrain is complex, the weather is changeable, there are many hail, and the victims are serious. Strong hail can destroy crops, damage houses, people are injured and livestock are killed from time to time.