Urban Safety Series Science and Science ｜ Heavy Rain come again, teach you where to rain

The meteorological department predicts that on the 4th to 5th, Guangzhou will be affected by the tropical low-voltage circulation, and there will be a large heavy rainstorm in heavy rain, accompanied by strong convective weather such as lightning and short-term winds at the 8th level. It may be affected by new tropical cyclones on 9-11, and the wind and rain will become obvious.

How to defend the stream of weather? The Guangdong Provincial Emergency Management Department suggested that citizens can check the radar back map on their mobile phones, and they can know the latest developments of thunderstorms at any time and flexibly adjust their travel plans.

Look at the radar map to predict the strong convection

The strong convection weather refers to sudden and intensity, often accompanied by the weather such as short -term heavy precipitation, lightning, heavy wind, hail, and tornado. The strong scale of the strong pairing weather and the short life cycle, but it can release strong power in a short time, with strong destructive power, and is a catastrophic weather that people have to guard against.

The defense of strong weather weather needs to pay attention to the short -term approach of the local meteorological station. It is best to reduce outdoor activities when strong convective weather occurs, and try to avoid arranging out -of -the -way activities in severe weather. You can use the webpage and mobile phone to watch the radar map to simply judge how long the strong pairing weather is achieved.

What do you think of the radar back? You can find it in the realistic column of the weather public account in Guangzhou. There is a red, yellow, blue -green color block on the radar map, that is the radar back. Cold tones -such as blue green -indicating a gentle weather such as cloudy or light rain, the warmer the color -yellow -red, etc. -means the more intense the weather in the place.

The radar diagram provided by the weather in Guangzhou is a sequence diagram of the last time. As long as it is played, knowing the direction and speed of the radar echo movement, you can probably calculate the weather in the next few hours.

Do not hide from the rain under the thunderstorm

For the lightning defense of the stream of weather, a lightning protection device needs to be installed on the building to introduce the light current into the earth and disappear. During thunderstorms, people should not work in the field, do not approach high -voltage wires and isolated high -rise buildings, big trees, flagpie, etc., let alone stand on an empty highland or hiding under the rain under the big tree. Do not use metal umbrellas in the suburbs or open -air operations. Do not use metal tools.

In order to prevent heavy winds, we need to reinforce the fence, billboards, scaffolds and other temporary buildings. Reinforce the port facilities to prevent the ship's anchor or collision. Motor vehicles and pedestrians should slow down, pay attention to observation. The shipbuilding vessels and offshore farmers return to Hong Kong to avoid the wind. In case of ham, outdoor pedestrians need to go to a safe place immediately. Drive poultry and livestock into a place with top pans, and properly protect outdoor items or equipment such as cars that are susceptible to hail attacks.

Short -time precipitation will bring a surge in surface runoff flow, which can easily cause urban waterlogging and farmland accumulation. In areas with more fragile geological conditions, mudslides and mountain landslides are prone to occur. When walking in outdoor water, pay attention to observation, and walk close to the building to prevent falling into the pits and pit.

When the driver encounters the road or the overwhelming water under the bridge is too deep, try to bypass as much as possible to avoid forcibly passing. When the car goes off at the low -lying water accumulation, people must not wait in the car, get off the car to the high place and wait for the rescue. For farmland stagnation, water accumulation should be excluded in time to prevent the roots of the crops dying or falling in time.

When encountering mudslides, run towards the hillside on both sides of the direction of the mudslides. Do not run along the mudslide ditch upstream or downstream, let alone stay at the concave slope. When encountering a landslide, do not run along the slope, but you should escape from both sides. When encountering high -speed tiri, you can't escape, don't panic. If the landslide slides as a whole, it can not move or hold the big tree and other objects.

Wen, Picture/Guangzhou Daily · Xinhuacheng reporter Li Tianyan Guangzhou Daily · Xinhuacheng editor Lin Chuanling

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