Core Points - Typhoon "Maidum" formed in the northwest Pacific Ocean on October 2 and is expected to make landfall on the eastern coast of Luzon Island, Philippines, on October 3, before moving into the South China Sea [1] - The typhoon will bring significant wind and rain impacts to South China and the South China Sea during the latter part of the National Day and Mid-Autumn Festival holiday [1] Naming and Classification - Since January 1, 2000, tropical cyclones in the northwest Pacific and South China Sea have been named using a new method that incorporates Asian-style names [4] - The naming system involves 14 committee members, each providing 10 names, resulting in a total of 140 names that are used in a rotating manner [5] - A name will be removed from the list if the typhoon causes significant disasters or casualties, with replacements recommended by the original providing country or region [5] Typhoon Classification - Typhoons are classified into six levels based on the maximum average wind speed near the center, starting from tropical storm [7] - The classification includes tropical depression, tropical storm, strong tropical storm, typhoon, strong typhoon, and super typhoon, with specific wind speed ranges for each category [8][9] - The wind speed thresholds for classification are as follows: - Tropical storm: 10.8-17.1 m/s - Typhoon: 24.5-32.6 m/s - Strong typhoon: 32.7-41.4 m/s - Super typhoon: ≥51.0 m/s [8][9]

Group 1 - The tourism and cultural sectors in Sanya, Hainan, have suspended operations due to Typhoon "Jianyu," which is expected to make landfall on August 24 [1][3] - The Sanya Municipal Disaster Prevention and Relief Committee has raised the emergency response level from III to II due to the impending typhoon, indicating increased preparedness measures [3] - Sanya Phoenix International Airport has suspended all flight operations starting from 10 AM on August 24, leading to the cancellation of subsequent flights [4] Group 2 - The Ministry of Agriculture and Rural Affairs and the China Meteorological Administration have issued warnings about potential agricultural damage due to heavy rainfall and strong winds associated with Typhoon "Jianyu," particularly affecting southern Hainan and parts of Guangxi [6] - Wind speeds in coastal areas of Guangdong, Guangxi, and Hainan are expected to reach levels of 6 to 8, with gusts potentially reaching 15 to 16 [6]

Core Viewpoint - The first typhoon of the year, "Butterfly," has formed and is expected to make landfall twice on the South China coast on June 13, prompting the Central Meteorological Observatory to issue the first typhoon warning of the year [1] Warning Levels Summary - The Central Meteorological Observatory issues four levels of typhoon warning signals, with colors indicating increasing severity and defense levels [1] Blue Warning - A blue warning indicates that within 24 hours, there may be or have been an impact from a tropical cyclone, with average wind speeds reaching 6 or more, or gusts exceeding 8 [5] Yellow Warning - A yellow warning indicates that within 24 hours, there may be or have been an impact from a tropical cyclone, with average wind speeds reaching 8 or more, or gusts exceeding 10 [7] Orange Warning - An orange warning indicates that within 12 hours, there may be or have been an impact from a tropical cyclone, with average wind speeds reaching 10 or more, or gusts exceeding 12 [9][10] Red Warning - A red warning is the highest level, indicating that within 6 hours, there may be or have been an impact from a tropical cyclone, with average wind speeds reaching 12 or more, or gusts exceeding 14 [11][14]