受副热带高压后部低空切变影响,延边地区出现入汛以来最明显大范围降水天气过程。7月19日起,延边州大部分地区普降暴雨,江河水库水位迅速上涨,引发洪涝和次生地质灾害。此次暴雨造成多个乡镇民房被冲垮、道路被淹没、群众被围困,为近百年来之罕见。面对突如其来的暴雨,延边州公安消防支队延吉市大队全体官兵与前往增援的特勤消防中队官兵全力投入抗洪抢险 Affected by the low altitude shear in the back of the subtropical high, the most obvious large-scale precipitation weather occurred in Yanbian since flood season. July 19, heavy rainfall in most parts of Yanbian Prefecture, the rapid rise of water levels in rivers and reservoirs, triggering floods and secondary geological disasters. The torrential rains caused the demolition of a large number of townships and houses, the roads were submerged, the masses were besieged, and they were rare for nearly a hundred years. In the face of sudden heavy rains, Yanbian Prefecture Public Security Fire Brigade Yanji Brigade all the officers and soldiers went to reinforcements and special firefighting squadron officers and soldiers fully into flood fighting and rescue