First, since the beginning of summer, the intensity of the subtropical high in the western Pacific has been unusually strong. Due to the influence of the high-pressure system, the city has prevailed downward flow and less precipitation;
There is no obvious blocking high pressure situation in Ural Mountain and Northeast Asia, and the cold air activity is weaker than normal, which will not affect the city.
Third, the Qinghai-Tibet high is stronger than normal and continues to control most areas of our city.
Fourth, the number of landing typhoons this year is more than normal, and the landing typhoons blocked the eastward and southward withdrawal of the western Pacific subtropical high.
In layman's terms:
1, Chongqing is in the subtropical high control area.
The whole Chongqing area is closed, and the heat dissipation is not very good.
The air humidity is very high-two big rivers flow through here (Yangtze River and Jialing River).
4. The population density is high, especially in urban areas, and the heat island effect is obvious.