2017年7月25日13时—26日8时,陕西省榆林市绥德县境内普降大到暴雨,局部地区出现特大暴雨。在境内交汇的大理河、无定河上游的子洲、横山以及米脂等县区也出现大面积持续强降雨,导致绥德县境内大理河和无定河水位暴涨至历史最高水位。一场百年不遇的洪涝灾害,在一夜之间肆虐,袭卷了沿岸村庄和绥德城区。县城内十余座大桥漫水,城区大面积被洪水淹没,旧城区街 July 25, 2017 at 13:00 - At 8:00 on the on the 26th, Suide County, Yulin City, Shaanxi Province, plummeted heavy rain, torrential rain in some areas. Continuous heavy rainfall also occurred in Dali River, Yokoyama and Mizhi counties in the upper reaches of the Dali River and Wuding River which converged in the country, causing the Dali River and Wuding River water level in Suide County to skyrocket to the highest level in history. A once-in-a-lifetime flood disaster raged overnight and raided the coastal villages and Suide City. More than a dozen of the county bridge over the water, the city flooded large area, the old city streets