红色预警！一级应急响应！北京：非必要不外出！

Group 1 - The Beijing Flood Control Headquarters has initiated a Level 1 emergency response due to severe weather conditions, advising citizens to avoid unnecessary outings and to stay informed about safety measures [1][3][5] - All non-essential work activities are suspended, including organized cultural and sports events, and schools have halted all in-person classes [1][5][10] - The city has closed all scenic spots, parks, and outdoor tourist activities, and has implemented measures for the safe evacuation of at-risk individuals [1][9][10] Group 2 - A red rainstorm warning has been issued, predicting rainfall of over 150 mm in most areas, with some locations potentially receiving up to 300 mm, increasing the risk of mudslides and flooding [3][11] - The Beijing Water Authority has issued a red flood warning, urging citizens to stay away from riverbanks and to ensure their safety [7][9] - The risk of mountain floods is particularly high in certain districts, with authorities advising the public to avoid outdoor activities in mountainous areas [9][10] Group 3 - The Central Meteorological Observatory has continued to issue yellow warnings for heavy rain across various regions, indicating the potential for severe weather conditions [11][13] - The Ministry of Agriculture and Rural Affairs has warned of potential agricultural damage due to the approaching typhoon and heavy rainfall in several provinces [13] - Guidelines for self-protection during mountain floods have been provided, emphasizing the importance of seeking higher ground and avoiding low-lying areas [15][30][32]