北京关闭所有景区，首都机场航班受影响

Core Viewpoint - The article discusses the emergency response measures taken by Beijing in light of severe weather conditions, including the issuance of a red rainstorm warning and the activation of a level one flood emergency response [1][4]. Group 1: Emergency Measures - All tourist attractions in Beijing are closed, and efforts are made to evacuate threatened tourists [1]. - Operations at rural homestays and camping sites are suspended, with tourists being advised to return or relocated to safe areas [1]. - Travel agencies are instructed to halt tourism activities and provide safety notifications [1]. - Organized cultural and tourism activities, including performances and training, are suspended [1]. - Hotels are advised to inform guests to minimize outdoor activities and ensure service support [1]. Group 2: Public Safety Advisory - Citizens and tourists are urged to comply with flood emergency measures and avoid visiting tourist sites, rural homestays, and camping areas during the emergency response [2]. - It is recommended to stay away from river channels, mountain flood areas, and to cease outdoor activities involving mountains and water to ensure personal safety [2]. Group 3: Weather Impact - The severe weather is expected to cause significant rainfall, with some areas receiving over 150 mm and potentially up to 300 mm, leading to risks of secondary disasters such as flash floods and landslides [4]. - The strong convective weather may impact flight operations at the capital airport, prompting travelers to stay updated on weather conditions and flight statuses [4].