How to deal with heavy rainfall? What are the hazards caused by heavy rainfall?

It depends on where you are now, if you try to turn on electrical appliances as little as possible at home, close doors and windows, and see if you are in dense places such as wires and trees outside, and try to avoid the most important thing for life safety (there is thunder and lightning); Since it is a heavy rain, it is necessary to choose open land with high ground to prevent the harm of floods and mudslides, and put people before things.

Through some Internet of Things sensor equipment, real-time remote monitoring of the water accumulation in the area, the general waterlogging water level will be uploaded to the command and early warning center through the built-in communication module of the sensor, so as to improve the monitoring efficiency of the municipal waterlogging.

Heavy rainfall can cause geological disasters such as flash floods, collapses, and landslides.

1. Flash floods. Mountain floods are sudden, the water volume is concentrated, the flow rate is large, the erosion is destructive, and the water flow carries sediment and even stones, which often causes local floods.

2. Collapse. Collapse destroys buildings, and sometimes entire settlements, and buries roads and railways. The losses caused by the collapse are not only the direct losses of the destruction of the building, but also often cause the traffic to be interrupted, resulting in significant losses to transportation.

3. Landslides. The effect of rainfall on landslide is mainly manifested in the fact that a large amount of rainwater infiltrates the soil and rock layer on the slope, resulting in the saturation of the soil and rock layer on the slope, and even the accumulation of water on the aquifer layer in the lower part of the slope, thereby increasing the weight of the sliding body, reducing the shear strength of the soil and rock layer, and leading to the occurrence of landslide. Many landslides have the characteristics of "heavy rain and big slippery, light rain and small slippery, no rain and no slippery".

You should pay attention to the weather forecast in time, pay attention to special weather warnings, avoid going out during thunderstorms, and do not stay in dangerous areas.

In the face of this kind of weather, we try to avoid going out as much as possible, and we must be careful when driving.

Strong convective weather will cause rainfall, so you should bring an umbrella when you travel, and you should also pay attention to low-lying roads by car. Don't drive too fast when you encounter standing water.

1. When going out, please close the doors and windows of your home and office, turn off electrical appliances, and cut off the power supply. 2. Please take back the items placed on the balcony and the clothes dried outdoors in time to avoid being blown down by the wind and injuring others. 3. Please pay attention to travel safety.

Try not to walk against walls or buildings to prevent dangers such as building collapse and falling objects. 4. The road is slippery in rainy days, pay attention to vehicle driving safety, control the speed of vehicles to prevent accidents such as rear-end collisions. <

1. When going out, please close the doors and windows of your home and office, turn off electrical appliances, and cut off the power supply.

2. Please take back the items placed on the balcony and the clothes dried outdoors in time to avoid being blown down by the wind and injuring others.

3. Please pay attention to travel safety. Try not to walk against walls or buildings to prevent dangers such as building collapse and falling objects.

4. The road is slippery in rainy days, pay attention to vehicle driving safety, control the speed of vehicles to prevent accidents such as rear-end collisions.

5. Please pay attention to the safety of electrical appliances. cut off the outdoor power supply in the danger zone; During a thunderstorm, try not to use electrical appliances such as televisions, indoor water heaters, computers, etc., and unplug them.

1. Pay attention to the weather forecast at any time.

With the development of science and technology, the accuracy of weather forecasting is relatively high. It is necessary to get into the habit of reading the weather forecast, and if a thunderstorm occurs, you can also predict it in advance and then take measures to deal with it as soon as possible.

2. Try not to go out.

It is best to stay at home or at work in the event of a rainstorm and wait for the rain to light up before making plans. If you do want to go out, pay special attention to standing water on the road, walk carefully to prevent slipping, and be sure to avoid drain covers and pits. Also keep an eye out for power lines in the vicinity that are broken to the ground.

3. Pay attention to cut off the power switch.

If the rainstorm is too violent and causes water to enter the house, pay attention to cut off the power switch to avoid the current from being conducted into the water and causing harm to the human body. Wait for the water to recede before turning on the power switch.

4. Pay attention to escape from the dilapidated house.

Life is the most precious thing, if the place where you live is low-lying and the house has been built for a long time and there is obvious aging, you should consider moving to the safety of relatives and friends in time, and wait for the rainstorm to pass before returning.

5. Pay attention to lightning protection.

Rainstorms are often accompanied by thunder and lightning, so don't take shelter from the rain under big trees outside, don't try not to play with your mobile phone, play **, and don't go near power poles and transformers and other places that are prone to leakage.

6. Pay attention to flood control.

Residents living on the edge of rivers, poorly drained areas, and steep mountainous areas must be careful of flooding, especially heavy rains at night, and keep a personal eye on the movement of heavy rains, and if flooding occurs, they should be prepared to escape in time or call the rainstorm emergency center for help in time.

Everyone has heard of heavy rainfall, but they only know that it means heavy rain, but there is no specific concept.

Heavy rainfall is generally called heavy rain in meteorology, or heavy precipitation, which refers to rain with high precipitation intensity.

The China Meteorological Department stipulates:

1) Rainfall of 16 mm or more in 1 hour;

2) Rainfall of 50 mm or more in 24 hours. Starting from the utilization of rainwater and the prevention of floods, it is divided into general rainstorm, heavy rainstorm and extremely heavy rainstorm according to the intensity of rainfall. Due to the different terrain and water conservancy facilities in different places, the consequences of heavy rainfall of the same intensity are also different, so the standards for heavy rainfall and extremely heavy rain are also inconsistent.

But in most cases it is divided according to the following criteria:

1) Rainfall of less than 70 mm in 12 hours, or 100 mm of rainfall in 24 hours, is called "general rainstorm".

2) Rainfall of more than 70 mm but less than 140 mm in 12 hours, or rainfall of more than 100 mm and less than 200 mm in 24 hours is called "heavy rain".

3) Any rainfall of more than 140 mm in 12 hours, or more than 200 mm in 24 hours is called "extremely heavy rain".