Extremely heavy rainfall in North China and Huanghuai continues! What else should we pay attention to after the flood disaster?

Affected by the remnant circulation of Typhoon Dusurui moving northward, many places in the north have seen large-scale heavy rainfall in the past two days. According to the forecast of the Central Meteorological Observatory, from July 29 to August 1, the cumulative precipitation in some areas of Beijing, Tianjin and Hebei will reach 200-450 mm, and the local cumulative precipitation may reach more than 600 mm.

How long will this rain last? What issues should be paid attention to during and after the rainstorm? This issue of Health Focus provides you with a comprehensive explanation.

1. When will the super-long "train effect" rainfall in Beijing, Tianjin and Hebei end?

The rainfall process in the Beijing-Tianjin-Hebei region is affected by a fixed weather system for a long time. For example, a person standing in front of a moving train continuously feels the huge noise and impact brought by the passing of each carriage. The cumulative impact will lead to an aggravation of the disaster effect, which is called the "train effect."

Take Beijing as an example:

Phase 1 "Locomotive": Starting from the night of July 29, there will be heavy rain in Beijing and torrential rain in the southwestern region, accompanied by lightning, short-term heavy rainfall and short-term strong winds.

Phase 2 "Train Carriage": From the daytime of July 30 to the morning of August 1, Beijing will experience heavy rain to torrential rain, with local torrential rain. This is also the period when the precipitation is the most concentrated and the heaviest.

Phase 3 “The tail of the train”: During the day on August 1, Beijing will have light to moderate rain, and this process is coming to an end.

2. “Red warning for heavy rain” was issued for three consecutive days. How should we interpret this “colorful warning”?

First, let's talk about precipitation. "Precipitation" is a quantitative indicator for rain and snow weather warnings, generally in "mm" units. The rainfall levels are divided as follows:

If you have no idea about 20mm, you can convert it. The ordinary sole is about two centimeters. If it exceeds 20mm, the shoe will start to absorb water.

When it reaches the level of heavy rain, the weather has already had a serious impact on life. At this time, in order to warn of different disaster situations, my country's Meteorological Bureau divides them into four levels according to the degree of harm, urgency and development trend that may be caused by meteorological disasters: Level I (extremely serious), Level II (serious), Level III (relatively serious), Level IV (general), represented by red, orange, yellow and blue respectively.

The red rainstorm warning signal is the fourth level of rainstorm warning signals and is also the most serious level. In this extreme weather, attention should be paid to the high risk of secondary disasters such as floods in small and medium rivers, mountain torrents, and geological disasters induced by heavy rainfall in mountainous and shallow mountainous areas, and waterlogging is prone to occur in low-lying areas of cities.

3. How to protect personal safety when heavy rain comes?

In addition to paying more attention to weather conditions, you can also choose targeted countermeasures according to your own situation:

[Living in the city] When a rainstorm comes, try to avoid going out. If you must go out, in addition to bringing an umbrella, remember to wear waterproof shoes. Do not wear high heels or mesh shoes, otherwise it will be difficult to walk and you may slip.

[People living in rural areas where flooding occurs whenever it rains] When a disaster occurs, move to higher ground such as hillsides as quickly as possible; if the situation is urgent, do not be greedy for property, and move to rooftops or high floors as soon as possible to avoid danger and wait for rescue; if trapped by accumulated water, look for door panels, washtubs, wardrobes and other low-density items as escape tools and seek rescue.

[Walking] When walking on the road, you should step on water and avoid getting close to whirlpools to prevent stepping on empty water.

[Take public transportation] Try to reduce the use of public transportation, especially the subway, as subway stations are located at low altitudes and are more prone to water accumulation.

[Driving] You can prepare some emergency supplies in the car, such as a safety hammer, a buoyant pillow, etc. In addition, compressed food, mineral water, flashlights, etc. are also essential items for traveling on rainy days. When driving, you must slow down and keep a safe distance; pay attention to flooded roads to prevent getting stuck or stalling. If it happens, call the rescue number as soon as possible and wait for rescue at a high place outside the car.

Special reminder:

[Rescue others] If you encounter someone falling or being washed away in standing water, make sure your grip is secure when rescuing them.

[Stay away from charged objects] Try to stay away from charged objects such as lamp poles and electric poles outdoors to prevent leakage; cut off the power supply in time when rainwater seeps into the room.

4. If you have to wade through water, what health issues should you pay attention to?

1. Be alert to skin diseases and keep your skin clean and dry

Ordinary citizens: If you have to wade through water or soak your body in water, try to minimize the time your skin is soaked in water. Rinse the soaked skin promptly when you get home and keep your skin clean and dry.

Rescuers: Wear rain boots for protection before wading. If the water level is too high and rain boots are useless, apply waterproof ointment before entering the water, especially between the toes. When entering the water for rescue, get out of the water and rest every 1-2 hours and dry your feet.

In the few days after a rainstorm or flood, pay attention to whether there are skin diseases. If the skin has symptoms such as erythema, papules, itching, erosion, exudation, etc., go to the hospital for treatment in time and do not take medicine without authorization.

In addition, when passing through flooded sections of road, if your skin is scratched or abraded, you must go to the hospital as soon as possible for disinfection and bandaging to prevent secondary infection. If necessary, tetanus antitoxin and tetanus immunoglobulin can be used for treatment.

2. When soaking in rain water, girls should pay attention to prevent private part infection

The rainstorm came suddenly. In many areas, the water level has exceeded the waist. Many girls' lower bodies were soaked in the rain. If your lower body is soaked in water, you should clean your body and change into clean clothes when you get home.

If a girl is on her menstrual period, she should change her clothes and sanitary products and clean her vulva in a safe place (remember, you should wash the vulva instead of the entire vagina. The vagina has self-cleaning ability, and excessive cleaning may disrupt the balance of the flora, resulting in a decrease in beneficial bacteria and an increase in harmful bacteria).

After soaking in water for a period of time, you should pay attention to vaginal discharge. If you experience itching, burning pain, or abnormal leucorrhea, you should go to the hospital for treatment in time.

In addition, some girls are worried about urinary tract infection. In addition to cleaning the vulva, the best way to prevent it is to drink more water and urinate more. Flushing the urinary tract with urine can effectively prevent infection.

3. After soaking in water, everyone needs to keep warm

In addition to infection, heavy rains also cause colds. Many people may even suffer from hypothermia due to being soaked in water for a long time. Therefore, after getting out of the rain, you should pay attention to keeping warm in time.

If you can't take a shower right away, at least dry the wet parts of your body and put on dry clothes. Drink plenty of hot water to keep your body temperature up.

5. How to protect yourself after heavy rain and floods?

Finally, I would like to remind everyone to pay close attention to the weather forecast, make personal emergency plans, and protect your own safety when heavy rain comes.

References:

China Meteorological News Agency: Expert interpretation: The remnant circulation of "Dusurui" moved northwards and multiple factors jointly led to the super-long "train effect" rainfall in Beijing, Tianjin and Hebei