Group 1 - The article emphasizes the importance of early warning systems in flood prevention, highlighting that proactive measures can prevent small risks from escalating into larger disasters [1][3] - The article reports that 20 rivers in the country have experienced floods exceeding warning levels, prompting a Level IV emergency response in six provinces [1] - Successful evacuations during recent geological disasters in Guangdong and Hubei demonstrate the effectiveness of local government efforts and timely warnings [1][3] Group 2 - The article discusses the need for advanced technology in flood prevention, such as rain monitoring equipment that provides real-time data to monitoring centers [3] - The Ministry of Water Resources has initiated rolling risk warnings for mountain flood disasters, emphasizing the role of technology in enhancing flood management [3][5] - The article stresses the collective responsibility of individuals to be aware of disaster prevention measures and to act promptly upon receiving weather alerts [3][5] Group 3 - The article outlines that flood prevention and disaster relief involve complex issues such as water monitoring, emergency response, and resource allocation [5] - It calls for a strengthened connection between prevention and emergency response efforts, advocating for a comprehensive approach to flood management [5]

6月7日入梅以来，杭州降雨频繁。据气象部门统计，截至6月12日全市平均降雨量已达常年同期的 1.25倍。 在杭州市城市运行管理中心的巨型屏幕上，923个智能雨量站的数据实时跳动，犹如一张覆盖全市 的"神经网"。这些装备了高精度传感器的监测点，能捕捉到0.1毫米的雨量变化。 6月7日—10日，系统监测到丰古隧道等6个点位出现短时积水，但深度均控制在2厘米以内。得益于 提前布防，这些"小状况"在萌芽阶段就被消除了。 6月10日8:55，系统捕捉到萧山区博奥路与金惠路交叉口出现积水险情；9:03，平台第一时间启动 智能派单程序；9:06，交办至萧山区综合行政执法局处置；10:45，处置人员反馈积水处置完毕。"从发 现到处置完成，不到2小时！"相关工作人员回忆。 在与梅雨的"较量"中，杭州城管部门依托"一网统管"平台，构建起"天—地—人"三位一体的智慧防 汛体系。杭州市综合行政执法局相关负责人说："在极端天气下，这套系统相当于给城市装上了'数字免 疫系统'，不仅能快速'排毒'，还能'未病先防'。" 市综合行政执法局相关负责人透露，"一网统管"平台最核心的"防汛大脑"系统，集成了气象、水文 等18类数据，实时掌握积水情 ...