Henan will start a new round of large-scale rainfall. Which cities will have more rainfall?

Rain is a well-known weather phenomenon. This is a natural phenomenon, falling from the clouds. Sufficient and continuous water vapor, strong and lasting upward movement of airflow and unstable atmospheric structure are the main physical conditions for heavy rain. The main weather systems that cause heavy rain in China are fronts, cyclones, shear lines, eddies, valleys, typhoons, easterly waves and intertropical convergence zone. Henan will usher in a new round of large-scale rainfall. Xinyang, Zhumadian, Zhoukou, Shangqiu, Kaifeng, Puyang, Xinxiang, Hebi, Anyang and other places have heavy rains and local heavy rains.

The wind to the east of Beijing-Guangzhou Railway is increasing, with a northeast wind of 5-6 and a gust of 8- 10. Please pay attention to the latest warning and forecasting information in time and prepare for defense in advance. He 'nan is located in the transition zone between the second and third levels of the geographical ladder in China. There are Taihang Mountain in the north, Funiu Mountain in the south, Zhongtiao Mountain and Gushan Mountain in the west. After the seawater vapor carried by the typhoon is transported here, due to the barrier between Taihang Mountain and Funiu Mountain, the vapor rises and becomes cold, which is easy to form a rainstorm.

Located on the bank of the Yellow River, Henan is suitable for human survival. It is one of the earliest cradles of human civilization and the earliest place where China was born. Cities in Henan plain lack large rivers and lakes and natural rainwater circulation systems, which is not conducive to the discharge of heavy rainfall such as heavy rain. Can only be discharged through the urban artificial drainage system. Once heavy rainfall, such as rainstorm, exceeds the carrying capacity of drainage facilities, it is another river cause of rainstorm disaster in Henan Province. In arid and semi-arid areas, thermal thunderstorms can also cause short-term and small-scale heavy rains. Rainstorms often bring a lot of inconvenience to our daily life, and even cause casualties.

The standards of rainstorm and flood are different with different precipitation and terrain characteristics. China has always been a country with frequent rainstorms. Except for some provinces in the northwest, there is heavy rain in most areas every year. April to June every year is the period of frequent rainstorms in South China. When the rainstorm comes, small enclosure measures can be taken in low-lying residential areas according to local conditions, such as building fences, placing water baffles at the gate, and configuring small pumps. Don't throw debris and garbage into the sewer on weekdays to prevent water accumulation during heavy rain.