Group 1 - Gansu Province Meteorological Bureau launched targeted warning system, successfully issuing red rainstorm warning signal to over 47,000 users in Longnan City [1] - The new system allows for progressive delivery of weather warnings, achieving precision down to village level, marking a significant upgrade in disaster prevention capabilities [1][2] - The system integrates 5G communication and electronic fence technology, creating a smart perception network for real-time analysis of warning impact areas [1] Group 2 - The targeted warning system operates with full-process automation, enhancing the accuracy of warning information delivery and addressing issues of irrelevant notifications [2] - Gansu Province has experienced an unusual frequency of extreme short-term heavy rainfall this year, complicating disaster prevention efforts [2] - Weather forecasts indicate significant rainfall from August 19 to 21, with varying intensities across different regions [2]