China News Service, Wuhan, July 18 (Reporter Xu Jinbo) The reporter learned from the Yangtze River Water Conservancy Commission on the 18th that a large flooding process occurred in the upper reaches of the Yangtze River and its Qingjiang tributaries, and the Enshi Station on the upper reaches of the Qingjiang River exceeded the historical water level on the 17th. The main stream water level is fluctuating or slowing down.
The picture shows, the Yangtze River Maritime Department strengthens the navigation management of the bridge area during the flood season.
According to the relevant person in charge of the Yangtze River Water Resources Commission, the upper reaches of the Yangtze River have recently experienced heavy rainfall. Affected by this, the tributaries of the Jialing River and Wujiang River in the upper reaches of the Yangtze River experienced a significant flooding process. At 10:55 on the 18th, the flood peak level at the main stream Cuntan station was 179.44 meters, corresponding to a flow of 41500 cubic meters per second, and the flow had dropped to 40600 cubic meters per second at 14:00.
Affected by the upstream main stream and the rapid increase of incoming water in the Three Gorges area, the inflow and water level of the Three Gorges Reservoir continued to rise. At 14:00 on the 18th, the water level of the Three Gorges Reservoir rose to 161.05 meters, exceeding the 145-meter flood limit water level of 16.05 meters; the inflow flow was 61,000 cubic meters per second, and the outflow flow was 34,700 cubic meters per second, compared with the daily average of 53,500 cubic meters per second on the 17th. , 32,300 cubic meters of inflow and outflow per second have increased.
At the same time, the Qingjiang River, a tributary of the Yangtze River, also experienced a major flooding. At 17:58 on the 17th, the upper reaches of the Qingjiang River appeared a peak water level of 420.68 meters, exceeding the warning water level of 5.18 meters, and exceeding the historical highest water level of 420.64 meters on July 11, 1989 by 0.04 meters, corresponding to a flow of 3790 cubic meters per second; Shuibuya The reservoir had a maximum inflow of 9180 cubic meters per second at 21:00 on the 17th, and the highest reservoir water level reached 397.73 meters at 4:00 on the 18th (flood limit water level 391.80 meters); the water level of the Geheyan Reservoir rose to 196.89 meters at 14:00 on the 18th.
Affected by the increase of incoming water in the upper and lower reaches of the Yangtze River, the water level of the main stream of the middle and lower reaches of the Yangtze River fluctuated or slowly receded, but all were in a state of super-warning water level, and the super-warning range was all above 1 meter. Among them, the downstream Nanjing tide level station rose to 10.26 meters at 7:50 on the 18th, exceeding the historical highest water level of 10.4 meters that occurred on August 17, 1954, by 0.04 meters.
It is expected that there will be two heavy rainfalls in the Yangtze River Basin in the coming week. From the 18th to the 20th, there were heavy rains near the main stream of the middle and lower reaches of the Yangtze River and the northwestern part of the Dongting Lake water system. From the 21st to the 24th, the rain belt was carried northward to the Jiangling River system and the upper Han River, with moderate to heavy rain.