The Beijing Meteorological Department stated on the 11th that due to the combined effects of the warm and humid airflow and cold air from the periphery of the Western Pacific Subtropical High, the Beijing-Tianjin-Hebei region will have a regional heavy rain on the 12th, and heavy rain will occur in most areas. There will be heavy rainstorms locally, which will be the heaviest rainfall process since the flood season this year.
Image source: Central Meteorological Observatory
The weather characteristics of this rainfall process are as follows:
One is the long duration. Rain is expected to begin on the morning of the 12th. The main rainfall period is from noon to night on the 12th. The rain gradually weakened and ended on the 13th.
The second is the heavy rainfall in the process. The average rainfall in Beijing is expected to be 40-80 mm, the urban area is about 50 mm, the western and northern mountainous areas may reach more than 200 mm, and the maximum hourly rain intensity can reach 80-100 mm. There are lightning and local short-term strong winds.
The third is the wide range of impact. This process is a regional rainstorm in Beijing, Tianjin and Hebei. The rain is expected to start in the southern part of Beijing on the morning of the 12th and move from southwest to northeast, gradually affecting Beijing.
On the evening of August 9, Beijing residents waded in the rain. Photo by China News Agency reporter Tian Yuhao
The official Weibo of the Beijing Meteorological Bureau reminded that the rainfall process lasted a long time, the process rainfall was large, and the rainstorm range was wide. Heavy rains can easily lead to secondary disasters such as urban waterlogging, and bring safety hazards to the public, especially in the central city. Pay more attention to travel safety and flood prevention of old bungalows. Heavy winds and hail accompanied by heavy rains may also blow down trees. , Fences and other temporary structures, causing loss of personnel or property. What should be done before the storm comes? Eliminate potential safety hazards and spend the summer safely.
1. What preparations should be made by bungalow residents before the rain?
If you live in dilapidated bungalows, low-lying courtyards, or basements, you can take preventive measures such as placing water baffles at the door, configuring small pumps, and preparing sandbags according to local conditions to prepare for rainstorms in advance.
Before the flood, cooperate with the house management unit or entrust a professional unit to conduct house inspection and maintenance, remove the facilities that affect the house (such as pigeon nest, etc.), and remove the deposits that affect the safety of the house and the drainage facilities of the house (such as deposits in front of the door, etc.).
2. What should I do if the roof leaks?
Residents who find rain leaks on the roof can directly call the maintenance pipe section and ask professionals to deal with it on site. If conditions permit, while ensuring safety, you can also take temporary cover measures yourself. However, when a dangerous situation arises, it should be handled by professionals and the personnel in the house should be transferred immediately.
If the roof leaks, temporary cover measures can be taken; if the inner wall leaks rain, the wall is soaked, and the cover is invalid, the wall sinks, tilts, or deforms, the personnel in the house should immediately transfer and notify the housing management department to take support Roof reinforcement measures.
Data map: Municipal staff cleaned up blocked drains.
3. What are the general inspections during heavy rain?
Door: Whether the door is opened and closed smoothly, whether the door is inserted or locked, whether the door gap is enlarged (especially on one side of the door lock), whether the four sides of the door are close to the door frame, and whether there is a special sound when the door is opened and closed.
Window: Whether the gap between the windows is enlarged, whether the opening or closing of the window has changed, whether the window glass is in good condition, whether there is water stain under the window sill, whether the window is leaking.
Ground: Whether there are cracks in the ground, whether the ground is collapsed or bulged, whether the footing line is changed (changes indicate that there is a problem with the wall).
Ceiling (ceiling): Whether there are cracks in the ceiling, if the crack is at a 45-degree oblique angle to the corner of the wall, or even perpendicular to the beam, it means that the house has settled seriously. Whether the ceiling has water stains, if there are water stains, it indicates that there may be leakage.
Roofing: Check whether the roof tiles are damaged, whether there are cracks or weeds in the tile ridges, whether the waterproof materials should be updated, and whether there are debris accumulated.
4. Electricity safety tips
If the wires in the house are on fire, cut off the power immediately and report the danger at the same time. In the event of heavy rain, immediately close doors and windows and avoid places with metal pipes. At the same time, cut off the power of household appliances and do not stay on the balcony of high-rise buildings.
If you live in a low-lying courtyard bungalow or find water in the basement, you should cut off the power first to prevent electric shock; then move the personnel to a safe place; finally find a way to keep the water out of the door and immediately drain the indoor water out of the door.
Residents are not allowed to dismantle or modify the power supply lines by themselves to avoid rain leakage and short circuit accidents. In case of rain, please remove the covering on the rainwater grate in time to ensure smooth drainage.
5. Garden trees
For your safety, please stay away from tall trees during thunder and lightning, heavy storms and rain, do not shelter under tall trees, and do not use mobile phones and wireless devices in open squares of the park; in order to avoid your property loss, please do not park your car Under the tree; try to minimize visiting in the park; in the event of disastrous weather, tourists visiting in parks and scenic spots must comply with the requirements of the management party and leave the parks and scenic spots quickly to ensure their own safety.
6. Prevent lightning strikes and gales
Preventing lightning strikes "three unsuitable indoors": When lightning occurs, it is not advisable to open doors and windows; it is not advisable to use showers and touch metal pipes; it is not advisable to approach the exterior walls of buildings and electrical equipment, make calls, and surf the Internet; do not use solar water heaters and cut off the power supply.
In case of strong winds, please stay away from old buildings, construction site walls, billboards and other unreliable tall objects; stay away from tall trees to avoid falling down and breaking branches.
7. Road travel safety
If you encounter heavy rain when you are out, please pay attention to the flood prevention safety warning signs and avoid dangerous areas such as floor-to-ceiling billboards, transformers, telephone poles, trees, etc.; stay away from temporary walls on construction sites; do not wading forward rashly, beware of manhole covers, sewers, etc. Sewage wells, etc., if you find vortexes on the road, you must go around.
Data map: Citizens travel in the rain. Photo by Zhang Bin
If you need to drive on rainy days, please keep abreast of the road conditions, pay attention to the warning signs such as recessed overpasses, sunken roads, culverts, etc., and bypass the stagnant water section in advance; if you are already driving on the stagnant water section, please open the window and listen to the traffic police and municipal administration The command and diversion of departments such as water drainage, drainage and other departments must not be forced through; if there is a sign of a large amount of water on the road, you should immediately open the door of the electronic central control lock and get ready to get off at any time. If it is judged that the vehicle cannot continue driving, pull over and stop immediately. If the vehicle stalls in the stagnant water, judge the situation quickly and evacuate the stagnant area in time.
When road flooding causes traffic congestion, please give up the emergency rescue lane and actively avoid rescue vehicles. Cyclists should get off the bike when they encounter water on the road, pay attention to observation, and avoid places with water vortexes to prevent falling into manholes and deep pits. Please do not dump debris into the rain gutter, and do not occupy the rain grate when parking to ensure smooth rain drainage.
Author: Chen Hang