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1977年5月13日,我省西部德州、聊城、惠民、菏泽、济宁等地区发生严重风灾。大风从上午8时起,至下午3时30分,持续七个多小时,风力在六级以上,最大风力达十级,风向以北风为主,有时偏东北和西北,大风同时普遍降中雨到大雨,以鲁西北平原受害严重,造成人畜伤亡,房屋倒塌,树木折断。春季农作物普遍受害,特别是棉花受害最严重。5月13日前,棉苗已长出1—2片真叶,大风雨时,棉苗全部受害,大部棉苗叶片破碎,部分棉苗光杆,断头,晴天后叶片干枯,只留下生长点。风力之大,对
May 13, 1977, the western province of Texas, Liaocheng, Huimin, Heze, Jining and other areas of a serious storm. Strong wind from 8 am to 3.30 pm for more than seven hours, the wind at six or more, the maximum wind of ten, the wind is mainly to the north, and sometimes the northeast and northwest, while the general downgrade Rain to heavy rain, severe damage to the northwestern Shandong Province, causing human and animal injuries, houses collapsed, trees broken. Spring crops generally suffer, especially the worst affected by cotton. May 13 before the cotton seedlings have grown 1-2 true leaves, the storm, the cotton seedlings all victims, most of the cotton seedling leaves broken, some cotton polished rod, broken head, dry leaves after sunny, leaving only the growth point. Windy, right