At 17:15 on July 16, the Shigatse Meteorological Station of Xizang issued a blue warning signal for heavy rainfall: it is expected that from 23:00 on July 16 to 23:00 on July 17, there will be light to moderate rain or thunderstorms in most of the city, and moderate to heavy rain (17.0~37.9 mm) will be seen in some towns and villages in Jilong, Nyalam, Dingri, Angren, Xietongmen, Lazi, Saga and other places, accompanied by thunderstorms, hail, short-term heavy rainfall and other severe convective weather. Defense measures: 1. Please strengthen the inspection and risk elimination of disaster hidden points, prevent secondary disasters such as flash floods, mudslides, and landslides that may be caused by heavy rainfall, and strengthen the monitoring of water conditions in small and medium-sized rivers, lakes, and reservoirs. 2. Prevent the adverse effects of heavy rainfall on major construction projects, transportation, communication facilities, and cultural and tourism activities. 3. Prevent the adverse effects of severe convective weather on agricultural and animal husbandry production, outdoor activities (construction sites, high-altitude operations), etc., and do a good job in lightning protection.