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△ National Heavy Rainfall Area Forecast Map (Central Meteorological Observatory/Fa)
People's Voice of the World, April 21, Beijing Express In the blink of an eye, the traditional 24 solar terms of the "valley rain" have arrived. In the opinion of experts, as the warm and humid airflow moves northward in waves, when it encounters cold air from the south, it will cause frequent rainfall in the south. In the northern region, there will also be a large-scale rainfall process from west to east from the 18th to the 20th. Whether it is in the north or south, the temperature mostly shows a trend of high and then low.
△ 6-hour cumulative monitoring of severe convective weather across the country (Central Meteorological Observatory/Fa)
Experts said that monitoring data showed that from yesterday (20th) afternoon to this morning (21st), the strong convection in the south was a wave of unsettled waves. During this period, the convection in Guangdong and Fujian has not yet ended, and the convection in Guizhou and Guangxi has once again developed and moved eastward; among them, short-term heavy rainfall and thunderstorms and strong winds have once again occurred in many places in Guangxi and Guangdong this morning; for example, in Luoding, Guangdong, this morning, the rainfall in a single hour exceeded 50 mm, and Xinxing exceeded 60 mm; and the gusts of wind in Qinzhou, Guangxi reached level 10. Judging from the weather radar this morning, the convection in Guangxi and Guangdong is still very active, and the southern end of the convection is constantly reborn.
△Regional precipitation statistics (Central Meteorological Observatory/Fa Zhen Qi Network/Map)
According to experts, at the National Weather Conference of the Central Meteorological Observatory this morning, statistics from the Guangdong Meteorological Bureau showed that as of 07:00 this morning, there were 13 national meteorological observation stations (* Guangdong has a total of 86 stations), and the rainfall broke the record for total rainfall in April. According to the latest meteorological data analysis, there will still be a lot of rain in Guangdong in the next 10 days, so the total rainfall in April this year (2024) will be more record-breaking. Due to the recent strength of the subtropical high and the strong warm and humid airflow to South China, which is equivalent to the level of May and June in a normal year, the rainfall at the beginning of the "pre-flood season" is comparable to the "dragon boat water" in the peak season of the "pre-flood season".
△National Severe Convective Weather Forecast (Central Meteorological Observatory/Fa)
People in the industry emphatically pointed out that it is not difficult to find in the study and judgment of the situation, as experts said, this morning's Central Meteorological Observatory continued to issue a yellow warning for severe convective weather; for the people in Guangxi and Guangdong, it is still necessary to be vigilant against the possibility of short-term heavy rainfall of 20-50 mm in a single hour and more than 80 mm locally; at the same time, there will be thunderstorms and strong winds of 8-9 and 10-11 in local areas. Overall, the convection is stronger during the day and weakened at night, but strong convection is still possible in the Pearl River Estuary and along the coast of Guangxi, due to the triggering of the "sea and land winds". (Editor-in-charge/Xiangyu)
*Editor's Note:
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