According to information on the Weibo account of China Weather, extreme heavy rainfall has affected the Nanyang basin in Henan since early this morning. Nanyang, Zhoukou, and Xuchang have experienced severe rainstorms. As of statistics from 8:00 yesterday to 8:00 today, the maximum precipitation occurred in Dafengying, Sheqi, Henan Province, which was 606.7 mm. If it is calculated from 3:00 to 3:00, the precipitation in Dafengying reached 683.5 mm. Because the low-level jet increases at night, the nocturnal rain is prominent and strong, and the maximum hourly precipitation also occurred in Dafengying, with a high amount of 148.3 mm (from 1:00 to 2:00 today).