Group 1 - Continuous heavy rainfall since June 18 has led to severe flooding in the Liujiang River basin, with areas like Liuzhou and Hechi experiencing heavy to extremely heavy rainfall, including a record 1046 mm at the Rongshui station [2] - A total of 25 rivers and 28 hydrological stations in Guangxi have reported flood levels exceeding warning thresholds by 0.01 to 3.77 meters, with the Jin Cheng Jiang area reaching its highest water level since 1983 [2] - The Guangxi water resources and hydrology departments have issued 53 flood warnings, including 8 yellow and 45 blue alerts, maintaining a 100% warning issuance rate [2] Group 2 - The Guangxi Water Resources Department has guided the Liuzhou Water Resources Bureau to conduct joint reservoir operations in advance, releasing a total of 4.14 billion cubic meters of water from tiered power stations to mitigate flooding [3] - The Dalu and Longji reservoirs have effectively reduced peak flood flow by 1500 cubic meters per second, lowering the flood peak water level in Rongshui by 0.3 to 0.8 meters [3] - Predictions indicate that the water level at the Jin Cheng Jiang hydrological station will drop below warning levels in the next 6 hours, while some small rivers in Baise, Guilin, Liuzhou, and Hechi may still experience flooding [3]

5月13日，水利部长江水利委员会召开防汛会商，滚动分析研判流域汛旱形势，安排部署近期水旱灾害 防御和水库群联合调度工作。会商指出，今年1月至4月，长江中下游降水较常年偏少27.6%，来水整体 偏少约24.3%。当前长江中下游干流主要控制站水位波动缓涨，仍较历史同期均值偏低。当前，长江中 下游地区正处于中稻等农作物时令灌溉用水高峰期，为做好近期长江中下游灌溉用水保障工作，长江委 调度三峡水库将日均出库流量由8390立方米每秒逐渐加大，5月15日加大至日均12000立方米每秒左右。 (央视新闻) ...