CCTV News: According to the WeChat official account of "Haikou Release", the Haikou Meteorological Observatory issued a red warning signal for heavy rain at 8:34 on March 29: Affected by the convective cloud group, the rainfall of Hainan University in Haikou has reached 80.6 mm in the past hour. It is expected that in the next three hours, there will be 20-50 mm of rain in the city, Lingshan Town, Yanfeng Town, Chengxi Town, Haixiu Town, Changliu Town, Xixiu Town, Longqiao Town, Shishan Town, Yongxing Town, Zuntan Town, Longquan Town, Longtang Town, and Yunlong Town. It is recommended that relevant units and personnel do a good job in preventing work.