There will be strong convective weather in Jiaozuo, Xinxiang, Zhengzhou and Kaifeng. How did this bad weather come about?

The reason for this bad weather is the hedge of airflow.

We all know that there was a rainstorm in Henan before, and that rainstorm was once in a thousand years. In just one hour, Zhengzhou reached more than 300 millimeters of precipitation, which also broke the precipitation records of all cities. Now Henan and other places are facing strong convective weather again, and there will be short-term heavy rainfall in many places. This weather phenomenon is mainly related to the activity of ocean currents, because the hedge of air currents produces heavy rainfall.

First, Henan and other places issued rainstorm forecasts.

After the last round of rainstorm in Henan, many places have issued a new round of rainstorm forecast, and there may be a regional heavy rainfall process in the future. It is for this reason that many things begin to do defense work in advance to protect their property and life safety in this way. Many citizens have had experience in dealing with heavy rain, so they didn't panic too much this time.

Second, such bad weather will last for several days.

Friends living in the north should understand this experience. July and August in the north are usually rainy months. Because the northern region is generally in the temperate monsoon climate, in July and August every year, the cold airflow from the north will hedge against the warm current from the Pacific Ocean, and local heavy rainfall will occur at this time.

Third, the subtropical high-pressure airflow will also have a certain impact.

Because the dimension of the northern region is relatively high, it is very vulnerable to the influence of subtropical high-pressure airflow. When subtropical high-pressure airflow collides with southwest warm and humid airflow, tropical low-temperature airflow will be generated in some areas. It is for this reason that the areas hedged by these air currents will produce heavy rainfall, and the rainfall in some places can even reach more than 50 mm per hour.

To sum up, in the face of such bad weather, we must learn to protect ourselves and try not to go out at will.