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△ National Thunderstorm Gale or Hail Forecast (Central Meteorological Observatory/Fa)
People's Voice of the World, April 18, Beijing Express In the blink of an eye, the "Qingming" of the traditional 24 solar terms has 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.
△South China Radar Puzzle (Radar Meteorological Center of China Meteorological Administration)
Experts said that the monitoring data showed that this morning (18th), the "squall line" swept through Guangdong, therefore, resulting in short-term heavy rainfall, thunderstorms and strong winds. Among them, there were 10 level 10 winds (25.7 m/s) from 09 to 10 o'clock in Gaoyao, and at the same time, Yangjiang, Sihui, Panyu, Foshan (South China Sea), Huadu, Shunde, and Qingyuan had 8 thunderstorms and gales. In addition, Fengkai, Gaoyao, Yangjiang, Huaiji, Qingyuan, Sanshui, and Hua all experienced short-term heavy rainfall of more than 20 mm in a single hour. In the future, the "squall line" will continue to move eastward, affecting the central and eastern parts of Guangdong. We must be vigilant against Dongguan, Shenzhen, Huizhou, and Heyuan downstream.
△ National short-term heavy precipitation forecast (Central Meteorological Observatory/Fa)
It is worth noting that insiders in the industry emphatically pointed out that it is not difficult to find out in the study and judgment of the situation, as experts said, from 11 a.m. to 12 o'clock today, the "squall line" in Guangdong did continue to move eastward; during this period, it swept over Guangzhou; statistics show that the local rainfall in a single hour was 36.4 millimeters, ranking first in the country. Moreover, there is also a warm zone convection development on the front side of the "squall line" (*east). Therefore, strong convection is occurring or is about to occur in Dongguan, Shenzhen, Huizhou, Heyuan and Hong Kong. (Editor-in-charge/Xiangyu)
*Editor's Note:
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