The meteorological observatory of Huangnan Prefecture issued a blue warning of rainstorm at 19:00 on June 23: It is expected that from 08:00 on June 24 to 08:00 on June 25, moderate to heavy rain will occur in the whole prefecture, including Jianzha County, Lancai Township, Huangnaihai Township, Baoan Town, Nianduhu Township, Zequ Town, Duohemao Township of Zeku County, Youganning Town, Selong Township, Kesheng Township of Henan County, with a cumulative rainfall of 30 to 50 mm. The heavy rainfall period is mainly from 11:00 on the 24th to 08:00 on the 25th, with the maximum hourly rainfall intensity of 20 to 25 mm, accompanied by hail, thunderstorm and strong wind. Convective weather. The meteorological risks of secondary disasters such as landslides, mudslides, floods in small and medium-sized rivers, flash floods, and urban and rural waterlogging are relatively high. Please pay attention to prevention. Defense guidelines: 1. The government and relevant departments should make preparations for rainstorm prevention according to their responsibilities; 2. Schools and kindergartens located in hazardous areas should take appropriate measures to ensure the safety of students and young children; 3. Drivers should pay attention to road waterlogging and traffic congestion to ensure driving safety; 4. Pedestrians should not shelter or stay under high-rise buildings or billboards to avoid being injured by falling objects.

Huangnan Prefecture Water Resources Bureau and Huangnan Prefecture Meteorological Bureau jointly issued a meteorological risk warning for flash floods: Due to the impact of rainfall, it is expected that flash floods may occur in Jianzha, Tongren, Zeku, and Henan from 21:00 on June 23 to 21:00 on June 25 (blue warning). Please pay attention to real-time monitoring, flood prevention warning, and evacuation measures in all regions. Defense Guidelines: 1. Implement the county-level mountain flood prevention and protection responsibility system, and work with meteorological, emergency, and grassroots governments to monitor, warn, consult, judge, and respond to emergencies. 2. Relevant regions and units shall implement the leadership shift and 24-hour duty system, closely monitor the precipitation situation, timely activate contingency plans, and strengthen the inspection and control of flash flood risk areas. 3. Real time monitoring of short-term warning information, grassroots governments and relevant departments implementing the "call response" and "wake-up" mechanisms, and timely carrying out the work of transferring and sheltering the masses in dangerous areas. 4. Strengthen the monitoring and inspection of reservoirs (hydropower stations), silt dams, small and medium-sized rivers, and mountainous river channels to ensure the safety of basin infrastructure and people s lives and property.