When will the rainstorm in Zhengzhou stop?

Every summer, extreme weather occurs in some parts of China, and rainstorm is one of the more common weather phenomena. Recently, heavy rain fell in Zhengzhou, Henan Province, and floods occurred in many areas. It is reported that this rain will last until the end of the 22nd, so please take protective measures.

When will the rainstorm in Zhengzhou stop? The heavy rainfall may end on the 22nd.

The Henan Meteorological Observatory continued to issue a red rainstorm warning at 2 1 0: 40. It is estimated that in the next three hours, the precipitation in Xinxiang, Kaifeng, Luohe, eastern Zhengzhou and Xuchang will continue, and the accumulated precipitation will reach more than 100 mm. Due to the continuous heavy rainfall, from the night of/kloc-0 to the morning of/kloc-0, there will be waterlogging and flooding in many places in Henan Province, with vehicles lying in their nests and pedestrians swimming. For a time, the Central Plains region launched a large-scale flood fighting and emergency rescue.

According to China Meteorological Network, the heavy rainfall is expected to last until the night of 2 1 day. Heavy rainfall is concentrated in the central and northern parts of Henan Province. There are still heavy rains in some areas. There is heavy rain (250 ~ 270 mm) in the north, accompanied by short-term heavy precipitation (the maximum rainfall is 30 ~ 50 mm, which can exceed 70 mm), thunderstorms and strong winds and other strong convective weather. From 22nd to 26th, there was no obvious large-scale heavy rainfall in Henan Province, and there were more sporadic thunderstorms in Henan Province.

Why is the rainstorm in Zhengzhou 1? Typhoon Fireworks is less than1000km away from China, but it controls the rainstorm in Henan Province remotely.

Under the guidance of "fireworks" and subtropical high, a large amount of water vapor is continuously transported from the east to the land from the sea, and then gathered into rain in Henan Province.

2. Topographic reasons After Taihang Mountain and Funiu Mountain in Henan Province met, the easterly airflow converged and rose in front of the mountain, forming a rainfall concentration area with strong rainfall.

The atmospheric circulation situation is stable and the rainfall lasts for a long time.

At present, only when the typhoon "Fireworks" approaches China, the circulation situation is adjusted, and the source of water vapor is cut off, can the rainfall in Henan stop.

3. The influence of subtropical high The subtropical high in the western Pacific and the continental high are maintained in the Sea of Japan and the northwest of China, respectively, which blocks the movement of the upstream system and leads to the long-term maintenance of the westerly low system in North China and Huanghuai. Influenced by the deep easterly jet and stable vortex shear, and the strong convergence and uplift of easterly airflow caused by the special topography of Taihang Mountain and Funiu Mountain in Henan Province, the strong precipitation centers are mainly distributed in the western and northwestern mountainous areas of Henan Province, which are relatively stable and have little power, resulting in a long precipitation time in Henan Province.

Because of the long duration of precipitation and many concentrated areas of heavy precipitation, the risk of geological disasters of mountain torrents in western and northwestern mountainous areas has increased obviously. The water levels of small and medium-sized rivers and reservoirs in the Yellow River and Haihe River basins have risen rapidly. In addition, it also caused a large area of urban waterlogging and farmland waterlogging.

What should I pay attention to in heavy rain? 1. In case of heavy rain, all outdoor activities should be reduced or cancelled. In case of heavy rain, outdoor activities are very dangerous, especially in summer. Heavy rain is often accompanied by lightning, which may cause harm to people and is very likely. Therefore, in case of rainstorm, try not to go outdoors. Cancellation can reduce the amount.

Don't go barefoot or wear sandals in heavy rain. Rain boots are the best. They are waterproof and insulated to prevent electric shock.

3. During the lightning, try to turn off electrical appliances and other facilities that are easy to cause lightning. When going out in case of lightning, don't stand under trees or around telephone poles, and stay away from dangerous old houses, sheds, temporary buildings, scaffolding, trees, billboards, iron towers and other places that are easy to cause casualties.

In case of rainstorm, we should: If you drive out or go to work, try to keep the speed slow, continue to use the wiper and keep driving safely. Of course, many people think that driving is safe. In fact, driving is dangerous, especially when the road is slippery on rainy days, so it is necessary to control the speed, drive quietly and smoothly, and park the car in a safe place when necessary, so that people and cars will not be trapped in the water.

5. In case of dangerous water accumulation, please contact relevant departments in time. In case of danger, obey the instructions of relevant departments and transfer safely.

6. Heavy rain is easy to cause floods. People in flood-prone areas should strengthen self-prevention and transfer people to safety in time.

7. In case of rainstorm, you should pay attention to: when walking on the road, you should try to avoid water flow or whirlpool. Many times, it will be an underground drainage system, that is to say, when opening the manhole cover, be careful not to fall in, just walk around, or several people can walk hand in hand. In this way, you can help each other and avoid danger.

8. Residents in mountainous areas should pay attention to landslides and mudslides, and residents near Jiangshan should pay attention to smooth drainage. Because strong winds and heavy rains are easy to cause geological disasters such as landslides, mudslides and land subsidence, causing casualties. Once you find signs of geological disasters such as landslides and mudslides, don't delay, evacuate the dangerous area as soon as possible, and report to the relevant departments in time so that the surrounding residents can evacuate in time.