Flash Flood Warning Successful Early Warning And Effective Defense

At 0:50 on August 1, 2021, a mudslide broke out in Shuitang Village, Yuxi City, Yunnan Province, affected by days of heavy rainfall. The monitoring equipment alerted 10 minutes in advance, and the local department quickly organized the orderly evacuation of the people.

1. Layout plan of monitoring and early warning equipment

2. Dredge the drainage channels in advance

At 0:9:58 seconds on August 1, 2021, the mud and water level in the gully reached 0.6 meters, and the monitoring and warning system issued a blue warning; At 00:19 minutes and 58 seconds, the muddy water level reached 0.8 meters, upgrading the yellow warning; At 0:39 minutes and 58 seconds, the muddy water level reached 1.2 meters, triggering the orange alert. After hearing the early warning broadcast and receiving short messages, the local professional monitors quickly sent out the risk aversion transfer alarm information in accordance with the defense plan, and organized the masses to evacuate in an orderly manner according to the established path, and 264 people in 68 threatened households successfully transferred to risk aversion within 10 minutes.

Every year, we have many cases of this kind of advance monitoring. Modern group testing and group prevention are disaster prevention measures that achieve collaborative and efficient defense through extensive participation, the application of science and technology, and joint social efforts. In terms of civil defense, local governments emphasize popular science education and risk aversion drills for threatened populations, ensuring they are familiar with risk aversion signals, evacuation routes, and resettlement sites. In terms of technical defense, based on progressive research and judgment of quantitative precursor information, equipment is accurately warned to enter households, providing a favorable opportunity to avoid risks.