China News Service, August 13th. Beijing ushered in the strongest rainfall since the flood on the night of the 12th. Yu Yong, deputy director of the China Meteorological Administration, said on the 13th that the rainfall process, both in duration and intensity, was not as good as 2012. "7.21" in 2016 and "7.20" in 2016 and "7.16" in 2018.
Yu Yong revealed the above news at a press conference of the State Council Information Office on the 13th. At the press conference, he introduced the flood control and disaster relief work this year.
Regarding the rainfall situation in Beijing-Tianjin-Hebei, Yu Yong said that the rain began at 4 o'clock in the morning yesterday (12th) in Hebei and ended at 2 and 3 o'clock in the morning today (13th). So far, according to statistics from the Meteorological Department at 8 o'clock this morning, heavy rains have generally occurred in central Beijing, Tianjin Jinghai, Baoding, Hebei, and Cangzhou, with rainfall of about 100-190 mm. The largest rainfall occurred in the Xiong'an New District in Hebei. From general rainstorm to heavy rainstorm, the local area reached 242 millimeters, a few millimeters away from the extreme heavy rain. The city's average rainfall in Beijing is 69.4 mm, the urban area reaches 92.8 mm, and the maximum rainfall reaches 156 mm. Compare this rainfall process in Beijing. Both the duration and intensity of the rainfall process are not as good as the "7.21" in 2012, the "7.20" in 2016 and the "7.16" in 2018.
Regarding the heavy rainfall in the Sichuan Basin, Yu Yong introduced that from August 10 to 12, heavy rains occurred in the central Sichuan Basin and southern Gansu, and heavy or extremely heavy rains occurred in the central and western regions of the basin. The accumulated rainfall in the above areas generally exceeded 100 mm. In Jiangyou, Mianyang, Deyang, Chengdu, Ya'an and other places in Sichuan, the rainfall is 300-380 mm, and the local rainfall is 400-480 mm. The largest rainfall is in Shifang City, Deyang, with a point rainfall of 542 mm, which is extremely extreme. A total of 6 national meteorological observatories have exceeded their historical extremes in rainfall during this process.
In the future, the Sichuan Basin will generally maintain rainy weather. In the central and western part of the basin, the accumulated rainfall is generally 80-150 mm. In some areas, the rainfall exceeds 200 mm, and the local area exceeds 400 mm. Compared with the same period in normal years, the accumulated rainfall may be one to two times more. Preliminary analysis shows that the rainfall in the Sichuan Basin has slightly weakened in the past two days, but there will be a new rainfall process on 15-17.
Yu Yong emphasized that from the perspective of meteorology, the following precautions should be taken:
The northern region should take precautions against heavy rainfall and strong convective weather. This year’s northern flood season may end later, but the northern rainfall has the characteristics of locality and strong convection. There may be more occurrences in eastern, northern and northeastern Northwest China. Rainfall, we must take precautions.
Attention should be paid to strengthening the prevention of geological disasters in the southwest and east of the northwest. Some time ago, especially in the southwestern region, the rainfall has been relatively high since July. Since August, the rainfall has been relatively frequent, coupled with the obvious rainfall process in the later period, it is very easy to cause mountain torrent geological disasters.
Typhoon defense work should be done in South China and the southeast coast. There were no typhoons generated and landed in July this year, but four came in the first 10 days of August, and two landed, which means that the generation of typhoons in the future may be relatively concentrated, except for affecting southern China and China. Outside the southeast coast, more attention should be paid to preventing the impact of typhoons moving northward. Typhoon "Umbia" generated on August 15th, 2018, and "Typhoon Mangosteen" generated on September 7th, both have a relatively large impact on our country.
Jiangnan, Jianghuai, and South China continue to do a good job in the prevention of high temperature.