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△National precipitation forecast map (Central Meteorological Observatory/Fa)
People's Voice of the World, April 29, Beijing Express In the blink of an eye, the traditional 24 solar terms "Gu Yu" has arrived. In the national weather stage this week (April 29-May 5), experts believe that there are two more rounds of heavy rainfall and strong convective weather processes in the south, and the main periods are April 29-30 and May 3-5 respectively. Among them, the rain on May 4-5 will also affect the north, so it may have a greater impact on the "May 1st" holiday. In addition, from April 29 to 30, Hainan also had extreme high temperatures. During the week, the temperature in the north fluctuates greatly, at the beginning of the week, it is mostly low, and during the holidays, it rises first and then falls.
△National precipitation forecast map (Central Meteorological Observatory/Fa)
Experts said that according to the analysis of the latest meteorological data, there will be two more large-scale heavy rainfall and strong convective weather processes in the south this week. Among them, the first round will be from April 29 to 30, when it will start from Chongqing, Guizhou, and Hunan; after that, as the upper-level trough and the low-level vortex shear line move eastward and southward, it will affect most of the southern part of the Yangtze River and South China; and the convective energy in Guizhou, Hunan, Guangxi, Guangdong, Jiangxi, and Fujian is sufficient, and we should be vigilant against the occurrence of extremely strong convection; for example, thunderstorms and strong winds above 11, large hail, and short-term heavy rainfall of more than 50 mm in a single hour.
△National precipitation forecast map (Central Meteorological Observatory/Fa)
According to experts, it is expected that on May 1, low-altitude cold air will move south, and the rain will shrink southward to southern China. On the same day, there will also be convective rain in southern China. On May 2, the warm and humid airflow will strengthen northward again, and at the same time, from May 3 to 5, there will be a wide range of rainfall in the central and eastern parts of the country due to the eastward movement of the upper-air trough, and there will be heavy rainfall and strong convective weather in the south. Due to the formation of a high-altitude cold vortex in the late northern period, the rain in the central, eastern and northeast parts of Inner Mongolia may continue until next week (May 6-May 12), and there will still be precipitation from 6 days to 7 days.
△National precipitation forecast map (Central Meteorological Observatory/Fa)
Experts believe that from May 3 to 5, the convective intensity of rainfall in the south may be slightly weaker than that from April 29 to 30. However, because it happens to be the "May 1st" holiday, friends who are planning to go to Zhangjiajie, Nanyue Hengshan, Lushan, Huangshan, Wuyi Mountain and other mountainous areas should pay more attention to the weather forecast when it is approaching, pay attention to rain and lightning protection, and try to avoid climbing during strong convection periods, or staying on the top of the mountain.
△National precipitation forecast map (Central Meteorological Observatory/Fa)
It is worth noting that experts further explained that judging from the precipitation situation during the "May 1st" holiday in some cities in southern China, it may rain in Guangzhou from May 1 to 5; but because of convective rainfall, the spatial and temporal distribution is uneven, and it does not rain all the time; therefore, the public can plan the time to go out according to the movement on the weather radar and the short-term nowwarning forecast of the meteorological department. Another example is Chongqing, where it may rain from May 1 to 4, of which it may be suspended during the day on May 3 and is expected to be sunny on the 5th. Neighboring Wuhan, it rained from the afternoon of May 2 to the morning of May 5, and mainly on May 4. For example, in Nanjing, Shanghai, and Hangzhou, there will be rain in the afternoon or evening of May 4 and May 5.
△National precipitation forecast map (Central Meteorological Observatory/Fa)
Industry insiders stressed that it is not difficult to find that in the analysis of the situation, as experts say, in the opposite direction of the intensive precipitation in the south, Lanzhou in the north rained from the night of May 2 to noon on May 3. It rained in Xi'an on May 3-4, Zhengzhou on May 4, Jinan on the evening of May 4-May 5, Shijiazhuang, Beijing and Tianjin on May 5, and Shenyang on the evening of May 5-May 6. In addition, there is a possibility of snowfall in Qinghai on May 3, and Xining does not rule out snowfall. However, it is not unusual for Xining to snow during May 1, after all, the altitude is relatively high. However, if it is really down, it is estimated that it will be on the "hot search". (Editor-in-charge/Xiangyu)
*Editor's Note:
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