Along the the Pearl River, the Bay Area takes off. The major cross sea channels, such as the "Macau Bus Northbound" and "Hong Kong Bus Northbound" routes, as well as the Shenzhen Zhongshan Passage and the Huangmaohai Cross Sea Passage, have been successively completed and opened. The urban agglomeration in the Guangdong Hong Kong Macao Greater Bay Area has become more closely connected, and new achievements have been made in meteorological cooperation among the three regions. During the 14th Five Year Plan period, with the promotion of the China Meteorological Administration and the Guangdong Provincial Party Committee and Government, the meteorological cooperation between Guangdong, Hong Kong and Macao continued to deepen. A series of top-level designs, such as the "Guangdong Hong Kong Macao Greater Bay Area Meteorological Development Plan (2020-2035)" and the "Guangdong Province Regulations on Promoting the Development of Guangdong Hong Kong Macao Meteorological Cooperation", have been successively introduced, building a solid bridge for meteorological cooperation between cities in the Greater Bay Area from the perspectives of policies and the rule of law. The meteorological department of Guangdong Province has thoroughly implemented General Secretary Xi Jinping's important instructions on meteorological work and the series of important speeches on Guangdong. It insists on closely integrating top-level design with regional planning, fully leveraging the role of the main force and locomotive, and through the implementation of the three-year action plan for meteorological development in the Guangdong Hong Kong Macao Greater Bay Area, solidly promoting the implementation and effectiveness of 45 cooperation tasks in seven major areas, promoting data sharing, mutual recognition of standards, and early warning linkage in the Bay Area, and driving the integration of Hong Kong Macao meteorology into the overall modernization of meteorology. Weaving a dense three-dimensional precision monitoring network to create a new highland for scientific and technological innovation talents. Faced with the severe situation of frequent extreme weather, the meteorological departments of Guangdong, Hong Kong and Macao continue to strengthen the overall planning of meteorological detection facilities, jointly build a monitoring network consisting of 57 X-band phased array radars and a lightning positioning network in Guangdong, Hong Kong and Macao, jointly carry out collaborative observation experiments of Shenzhen Hong Kong S-band radar and comprehensive collaborative observation experiments of typhoons in the South China Sea, jointly maintain automatic weather stations on islands such as Huangmaozhou Island, and build an integrated three-dimensional monitoring network of land, sea, air and space. Relying on the collaborative innovation platform, focusing on the research and development of regional high-resolution numerical prediction model system with independent intellectual property rights and artificial intelligence short-term and imminent prediction technology, the prediction accuracy of typhoon, rainstorm and other disastrous weather has been significantly improved. Relying on the Guangdong Hong Kong Macao meteorological data transmission line, the three regions continue to carry out the sharing and exchange of 24 core data including automatic stations, radars, lightning, sounding, and wind profiles. The breaking of data barriers has laid a solid foundation for creating fully covered, seamless, and refined intelligent digital forecasting services. Based in the Bay Area, embracing the world. The meteorological department of Guangdong Province adheres to innovation driven and open collaboration, with the construction of a high-level meteorological technology innovation system as the core, and has made a series of breakthroughs in platform construction, regional cooperation, talent aggregation, and other aspects. The first national level meteorological science and technology innovation platform in South China, the Guangdong Hong Kong Macao Greater Bay Area Meteorological Research Institute, has been established. Collaborative research and development institutions such as the Guangdong Hong Kong Macao Greater Bay Area Meteorological Monitoring, Early Warning and Forecasting Center, the Zhuhai Macao Meteorological Innovation and Application Research Center, and the Guangzhou Guangdong Hong Kong Macao Greater Bay Area Meteorological Intelligent Equipment Research Center continue to make efforts. The Provincial Meteorological Joint Fund organically integrates the scientific and technological resources of the Greater Bay Area, and the cluster effect of meteorological technology in the Greater Bay Area is increasingly prominent. The World Meteorological Center (Beijing) Guangdong Hong Kong Macao Greater Bay Area Regional Center, built at the speed of the Bay Area, has become an important window for international meteorological exchanges. The center successfully held eight international training courses and two international conferences to share the "Chinese experience" of smart weather services in megacities with countries jointly building the "the Belt and Road". The Secretary General of the World Meteorological Organization (WMO), Celeste Saul, gave high praise. The construction of meteorological talent highland in the Guangdong Hong Kong Macao Greater Bay Area has achieved remarkable results. Two national level scientific and technological innovation teams have been added, along with five leading talents, seven chief experts, and 15 young talents from the China Meteorological Administration. Fourteen individuals have been selected for the local talent plan. The meteorological departments of Guangdong, Hong Kong, and Macao have always adhered to the concept of cooperation and win-win, and have built a new pattern of cooperation at multiple levels and in a wide range of fields. In terms of major weather processes and major event service guarantees, the three regions have established a regular joint consultation mechanism. Taking the 15th National Games Cross border Marathon as an example, the Guangdong Meteorological Department and the Hong Kong Observatory have closely collaborated to establish a "joint assessment and local service" cooperation mechanism among Guangdong, Hong Kong, and Shenzhen. By strengthening the linkage between upstream and downstream forecasts, meteorological forecast products can be shared on the same screen at the minute level, helping to dynamically assess weather trends and risk impacts of the event, further improving the cross regional linkage meteorological service guarantee mechanism, and providing strong support for the successful hosting of the event. Focusing on the development needs of new quality productive forces such as low altitude economy, the three regions will continue to strengthen the exchange and cooperation of precision monitoring technology for low altitude flight meteorological support. Guangdong has achieved precise monitoring of low altitude meteorology through "volunteer observation experiments", and developed a series of low altitude meteorological core service products such as rapid quality control of multi-source data and turbulence forecasting and early warning of flight routes. At present, the Guangzhou Low altitude Meteorological Data Service Platform has been established, and the country's first integrated demonstration base for low altitude economic "communication, guidance, and monitoring" has been established, injecting meteorological energy into the development of low altitude economy in the Bay Area. The collaborative achievements have stepped onto the international stage - the WMO "Smart Weather Service for Mega Cities Public Private Participation Demonstration Project" jointly undertaken by three parties has become the first demonstration project to implement high-level WMO policies. The project has achieved 11 phased results in five aspects, including open sharing of meteorological grid data, disaster risk warning services, targeted warning information release, storm surge forecasting, and flood warning services. The relevant content has been included in the "2023 Joint Scientific Report - Sustainable Development Edition", contributing to the "Greater Bay Area Plan" for global mega city meteorological governance. Expanding meteorological science popularization to young people - In 2025, the three regions jointly held the "Meteorological Little Anchor" competition with the theme of "Wonderful and Infinite Meteorological Protection for the National Games", attracting nearly 12000 primary school students from the three regions to sign up and participate. 21 cities in Guangdong and Macau have set up sub competition areas, and Shenzhen has assisted Hong Kong in organizing the preliminary rounds, deepening the cultural identity and emotional connection among young people in the three regions. Under the guidance of the radiation of meteorological development in the Guangdong Hong Kong Macao Greater Bay Area, the Guangdong meteorological department continues to build a new pattern of coordinated development of meteorological regions throughout the province, promoting the spillover of factor resources to the eastern, northwestern and northern regions of Guangdong. Accelerate the construction of a precision monitoring network for disaster prevention and reduction in the eastern, northwestern, and northwestern regions of Guangdong, as well as the construction of an X-band dual polarization phased array weather radar network. Support the joint participation of the eastern, northwestern, and northwestern regions of Guangdong in the modernization of meteorology in the Greater Bay Area, deepen intellectual assistance between the Pearl River Delta region and the eastern, northwestern, and northwestern regions of Guangdong, and promote balanced and differentiated development of the regional meteorological industry. Infinite possibilities, all in the Bay Area. On January 1st of this year, the "Guangdong Province Regulations on Promoting the Development of Meteorological Cooperation between Guangdong, Hong Kong, and Macao" came into effect. This is an important innovative measure for Guangdong Province to implement the major national strategy of building the Guangdong Hong Kong Macao Greater Bay Area, and a vivid embodiment of the integrated development of meteorology in the Bay Area. In the future, the meteorological departments of Guangdong, Hong Kong, and Macao will continue to deepen cooperation, accelerate the construction of a new pattern of infrastructure "hard connectivity", rules and mechanisms "soft connectivity", and meteorological services "heart connectivity", and provide solid meteorological support for building the Guangdong Hong Kong Macao Greater Bay Area into an international first-class bay area and world-class urban agglomeration. (New Society)