In a river in Pengzhou, Sichuan, many people were washed away by sudden flash floods. What are the precursors before the flash floods? How to prevent it?

Mountain torrents are natural disasters, which not only cause casualties, but also may cause economic losses. Mountain torrents refer to the skyrocketing floods in mountainous areas. Mountain torrents are characterized by strong seasonality, high frequency of occurrence, obvious regionality, high possibility of occurrence, quick arrival, rapid disaster, strong destruction and very serious harm. Mountain torrents are mainly affected by heavy rain, which is very likely to cause mountain torrents. Therefore, mountain flood disasters in China are mainly concentrated from May to September. Floods may also be accompanied by mudslides and landslides, triggering a series of chain effects. Mountain torrents may break up families, so they are disgusting.

On the afternoon of August 13, a flash flood occurred in a scenic spot in Longcaogou, Longmenshan Town, Pengzhou City, Chengdu. It caused heavy casualties and caused a large number of people to be trapped. As soon as this incident came out, it aroused widespread concern of the people all over the country. Many people will have questions. Why is there a sudden flash flood? Didn't there be any warning or no one found out at all? In fact, flash floods are a precursor. Maybe most people don't know the omen, or some people do, but they don't pay attention at all. The precursors of mountain torrents mainly include muddy water in streams, rustle of trees on mountains, roar of trains or muffled thunder from deep valleys, abnormal smells and roar of animals, and so on.

Every year, flash floods cause casualties. Now that we know the precursors of mountain torrents, how to prevent them? First of all, you must remember to watch the weather forecast when you go out. If there is a rainstorm, try not to go out. Also, when you enter the scenic spot, you must remember the route, so that you can escape in the first time when flash floods break out. Finally, we must observe and carefully observe whether there are any abnormalities. As long as there are precursor phenomena, we must pay attention to them and escape from the scenic spot quickly. Generally speaking, everyone must pay attention to playing, don't panic when there is a flash flood, and make the most correct judgment.