It hails at 30 degrees in Jiangsu. Why is the weather always capricious recently?
In fact, this weather phenomenon is normal. During the day of April 30th, Suzhou Meteorological Observatory announced that there might be thunderstorms in Suzhou. Suzhou Meteorological Observatory issued a new notice, a yellow warning of thunderstorm in Suzhou, accompanied by a gale of 8~ 10. Heavy precipitation and hail will also occur in some areas. Suzhou is still sunny in more than 30 degrees during the day, and thunderstorms begin at night.
It hails in Suzhou because of strong convective weather. Strong convective weather occurs from time to time in summer. And with global warming, strong convective weather is becoming more and more frequent.
Strong convective weather refers to convective gale, hail and short-term heavy precipitation accompanied by thunderstorms. Generally, the area of strong convective weather is very small, mostly within 200 kilometers, and some political areas are only tens of meters. The time of strong convective weather is also very short, only a few hours to more than ten hours, with obvious suddenness.
Strong convective weather causes strong winds and other bad weather. It is because the hot air very close to the ground rises for a short time under the action of buoyancy, forming a rising hot and humid airflow. After the hot and humid airflow rises to a certain height, it decreases with the surrounding temperature. It will condense water vapor into water droplets at high altitude, or even into ice slag or hail. When this water drop falls, it will be carried to the sky by the rising airflow, so it will condense repeatedly, and the slow small water drop will become a big water drop, and then heavy precipitation will be formed after the airflow cannot support its weight. This is why the rain in summer is often accompanied by lightning.
Therefore, it is normal for Suzhou to hail in summer. Every year, due to strong convective weather, hail will fall in many places from February to May.
In the face of hail, we should protect our personal safety and property safety and minimize going out. At the same time, we should also care for the environment and reduce such bad weather. ?