CCTV News: Heavy rainfall in the south has attracted much attention. What are the specific causes of this round of precipitation and what are the impacts?

It is understood that this round of rainfall in the south is indeed very strong. The reason is that the warm and humid air flow continues to strengthen northward starting from the 8th, providing the south with sufficient water vapor; in addition, the cold air goes south, the two work together to rub a cyclone in the Jiangnan area, and the rain falls very violently on the east and south sides of the cyclone. There are even squall lines in the eastern part of Guizhou to Hunan, which is the narrow and long red echo on the radar echo map. Usually when the squat line passes, the weather will change suddenly, and many places will feel "night in one second", lightning, thunder and wind and rain.

On May 9, as the cold air continues to move south, heavy rainfall will also press south, affecting southern Jiangnan and southern China. There will be heavy rain in Guangxi, Guangdong and other places, and there will be heavy rain in some places, and the time and space distribution of rainfall will be uneven. The rainfall in many places will be concentrated in a short period of time, and there will be thunderstorms, strong winds or hail in some places, which will be catastrophic, especially mountainous areas such as Wuyi Mountain and Nanling, and fragile geological conditions, which are prone to cause secondary disasters such as mountain torrents, landslides, and mudslides. We must be highly vigilant and be careful to stay away.

For cities, heavy rainfall is more likely to cause waterlogging. Usually, 15 cm of water will hinder pedestrians from moving forward. Be careful to stay away from low-lying sections on heavy rains. At the same time, friends who drive by expressways such as Shankun and Quannan should also be particularly wary of traffic safety on the road. It is expected that heavy rainfall in South China will continue on the 10th. Starting from the 11th, most parts of the south will bid farewell to the rain and usher in a clear weather of about 3 days.

Strong convection weather causes crop damage, agricultural technicians guide replanting

On May 8, strong convection weather such as strong winds and heavy rains suddenly occurred in Xinyu City, Jiangxi Province, and the facilities and agriculture suffered damage to varying degrees. Relevant departments organized forces to carry out rescue in a timely manner.

In Hushan Town, Yushui District, Xinyu City, some cattle greenhouses, vegetable greenhouses and mushroom base greenhouses have been damaged to varying degrees. This is the vegetable planting base in Dongli Village. The storm tear the plastic film of the greenhouse into pieces, some of the brackets were blown down, and the newly planted seedlings were overwhelmed or soaked in water.

After the rain stopped, agricultural technicians came to the fields to guide farmers to repair greenhouses, clean up accumulated water, and replant crops.

Yueyang, Hunan: Heavy rain caused a school to suspend classes. Yueyang County urgently evacuated 745 people

On the morning of the 8th, heavy to heavy rain occurred in Yueyang County, Yueyang City, Hunan Province. The heavy rain caused a local school to suspend classes, and more than 740 people were urgently evacuated in the county.

The Yanglin Street Town Central School in Yueyang County was greatly affected by strong convective weather. The strong wind blew off the tiles on the roof of the school canteen, and the doors and windows of the teaching building were damaged. The school has three grades: seventh, eighth and nineth grades, and has 1,049 students. The school has been closed urgently and all students have left school safely. At present, the repair of damaged houses and facilities has been started, and normal teaching order is planned to be restored on May 12.

According to statistics, this strong convective weather caused power supply to the urban area and Xinqiang Town and Gongtian Town, and some communications, transportation and water conservancy facilities were damaged, but fortunately no casualties were caused. After the danger occurred, the local government immediately organized staff to form multiple rescue teams and urgently evacuated 745 people. At present, the affected local communications and transportation facilities have been basically restored.

Guangdong: The local area has launched a level IV emergency response for flood prevention

According to the monitoring and forecast of the meteorological department, from the 9th and 10th, Guangdong will usher in a heavy rain to heavy rain, and local heavy rain. Some areas will also experience strong convective weather such as strong winds and hail of level 8 to 10, and there will be high risks of disasters such as flooding in small and medium-sized rivers, mountain torrents and geological disasters, urban and rural waterlogging.

According to the "Guangdong Province Flood Control, Drought and Wind and Frost Emergency Plan" and relevant regulations of the Guangdong Provincial Flood Control, Drought and Wind and Wind Control General Headquarters of Guangdong Province launched a level 4 emergency response to flood control yesterday.