With the advent of the "Dragon Boat Water" season, a new round of heavy rainfall in Jiangnan and South China will be launched from the night of the 19th to the 22nd. There will be heavy rains in many places, local heavy rains and strong convections such as thunderstorms, strong winds and hail the weather.

  In the past 10 days, the cumulative precipitation of Jianghuai and most of its southern regions has been 40-70 mm, and some regions have 80-130 mm. Most of the regions have 20-80% less than normal. However, with the advent of the "Dragon Boat Water" season in South China, heavy rainfall will also debut. The Central Meteorological Observatory predicts that tonight from the 22nd to the 22nd, there will be heavy rain in southern China, southern Jiangnan and eastern southwest. There are heavy rainstorms locally on the island and other places, and there are short-term strong rainfall and strong convective weather such as thunderstorm strong winds and hail in some of the above areas.

  Hu Xiao, chief meteorological analyst of China Weather.com, said that this round of heavy rainfall has strong short-term rains and strong convection. The main rain belt moves eastward quickly, sweeping south and south of the country from the east of the southwest in three days.

  Specifically, this round of heavy rain will begin on the evening of the 19th from the eastern part of the southwest region. On the 20th, this round of heavy rainfall began in full swing, with moderate to heavy rains in most parts of Jiangnan, eastern Southwest, southern China, and Taiwan Island, including central and southern Hunan, central and northern Jiangxi, northeastern Guangxi, and Taiwan Island. There are heavy rains or heavy rains in some areas, and some areas are accompanied by strong convective weather such as thunderstorms, strong winds, and hail. Taking Chongqing as an example, the main period of heavy rainfall will appear from the night of the 19th to the night of the 20th, and then quickly weaken.

  On the 21st, heavy rainfall areas will further shift eastward and southward, with moderate to heavy rains in parts of southern and eastern Jiangnan, most of South China, and Taiwan Island, including southwestern Jiangxi, southern and northwestern Fujian, southwestern Guangxi, central and northern Guangdong, There are heavy rains or heavy rains in parts of the central and northern Taiwan islands. In a big city like Nanchang, the strongest rainfall period will occur during the day on the 21st.

  By the 22nd, the heavy rainfall area will further move eastward, mainly concentrated in the coastal areas of Fujian, Guangdong and Taiwan.

  In this round of heavy rainfall, the local rainfall is strong, and the short-term rain is strong. Guangdong, Guangxi, Hunan, Jiangxi, Fujian and other places should pay attention to prevent disasters such as mountain torrents and debris flows. , Hail and other weather threaten personal safety. At the same time, heavy rainfall is not conducive to the harvesting of rapeseed, spring-sown crops and the growth of economic forest fruits. It is necessary to pay attention to prevent the effects of waterlogging and local strong convection, and strengthen the prevention and control of crops and fruit trees.

  Under the pressure of heavy rainfall, the temperature in Jiangnan and South China will also experience a brief decline. On the 21st, there will be significant cooling in Jiangnan and South China, and the maximum temperature drop in most of Jiangnan and North China and other places may reach 4-10 ℃, locally exceeds 10 ℃. It is expected that the temperature reduction will not last long. With the departure of rainfall, the temperature in the areas of Jiangnan and South China will rebound quickly, and the fluctuation will be more obvious. In Hangzhou, Changsha, and Nanchang, the maximum temperature on the 21st is only around 25 ° C, but the maximum temperature will quickly rise to above 30 ° C after the 22nd.

  In general, under the dual effects of rainfall and cooling, the sultry heat in Jiangnan and northern South China will be greatly improved. The cooling in southern South China is not obvious, and the sultry heat will still be maintained. Pay attention to heatstroke prevention.