Influenced by the residual circulation of typhoon "sea anemone", monsoon and weak cold air, extremely heavy rainstorm was recorded in Shenzhen from the evening of September 7 to the morning of September 8. As of 9:45 on September 8, the rainfall broke six historical extreme values since 1952, which were the maximum sliding rainfall of 2 hours (195.8 mm, salt field pit), 3 hours (246.8 mm, salt field pit), 6 hours (349.7 mm, Luohu East Gate), 12 hours (465.5 mm, Luohu small wutong), 24 hours (522.8 mm, Luohu small wutong), 48 hours (575.8 mm, Luohu small wutong), The largest occurrence occurs in central regions such as Luohu, Futian, Yantian, and Longgang. Luohu has broken 7 historical extremes in the area, while Yantian has broken 6 historical extremes in the area. It is estimated that from the daytime of September 8 to 10, Shenzhen will continue to be affected by low pressure and monsoon, and there will still be rainstorm and local heavy rainstorm. (Chen Yuzhu) (Lai Xin She)