Why is it so hot in Henan?

According to the statistics of Meteorological Bureau, the average temperature in Henan Province is 2.7℃ higher than normal, the average maximum temperature is 3.4℃ higher than normal, and the average surface temperature is 4.9℃ higher than normal. It can be said that it is the highest value in the same period in recent years. During this period, the temperature in 49% areas of Henan Province and 18% counties and cities exceeded 40℃ respectively, and even the highest temperature in Zhengzhou and other areas exceeded 40℃. Moreover, the high temperature heat wave continues, especially in most parts of central and northern China, and the temperature has reached the high temperature line.

This phenomenon is mainly caused by the eastward movement of the warm and high pressure ridge in the mainland and the eastward movement of the northwest dry hot air mass to Henan. At the same time, the southerly wind at the bottom strengthens northward, and the cloud amount is scarce, which will increase rapidly under the strong light blessing. This series of effects will lead to the long duration of high temperature and the continuous accumulation of surface heat. Coupled with the role of heat, it will naturally induce such a hot situation in Henan this year.

How long can this high temperature last?

I have to admit that the hot weather in Henan is in an extraordinary standby state. It's almost a week, and the heat wave above 38℃ continues. Even Zhengzhou is already in a high-temperature red warning. Even the high temperature in some areas will last for more than 6 days.

What precautions should be taken at high temperature?

1. Use air conditioning. If it is easy to induce heatstroke or heatstroke in high temperature environment, air conditioning can be set at around 26℃ in daily life, and windows should be opened regularly for ventilation.

2. Avoid going out. If it is not necessary, it is best not to go out. At the same time, you can also turn on the fan to achieve the purpose of cooling down. People can change clothes in time after sweating, but remember not to take a bath immediately after sweating, otherwise it will easily cause a cold.