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六月四日晚,商洛地区普降大暴雨,这次大暴雨时间短,来势猛,雨量大,范围广。丹凤县武关站十三个小时降暴雨184.1毫米,峦庄站十二个小时降雨145毫米;山阳县谷峪站四日晚九时到五日下午二时降雨204.8毫米,都超过历年六月全月的平均雨量两倍多。这次大暴雨造成山洪暴发,河水猛涨,其中仅有数百平方公里流域面积的武关河武关站和银花河竹林关站,先后出现了2450秒立方米和2970秒立方米的特大洪水,均超过调查最大洪水,据初步分析,这次洪水频率约为二百年一遇。
On the night of June 4, there was a heavy rainfall in the Shangluo area. The heavy rain time was short, the momentum was fierce, the rainfall was large and the scope was wide. Danfeng County Wu Guan station thirteen hours of rainstorm 184.1 mm, Luanzhuang station rainfall of 12 hours 145 mm; Shanyang Valley Valley Station on the 4th from 9 pm to 5 pm on the 2nd at 204.8 mm rainfall, all over the calendar year The average rainfall in the whole month of June more than doubled. The torrential rains caused an outbreak of flash floods and the river surged. Only a few hundred square kilometers of river valleys at the Wuguan Hewuguan Station and Yinhuahe Zhulin Sub-station have seen 2450 seconds of cubic meters and 2970 seconds of cubic meters of extraordinary floods, both of which More than the maximum flood survey, according to preliminary analysis, the flood frequency of about two hundred once a case.