Wet, wet, wet, wet…how outrageous can the return of the south wind be?

Have you ever experienced this kind of weather? Winter has gone and spring has arrived. It is still cold. When you wake up, you find that the house is full of water droplets, foggy windows, wet floors, quilts that seem to be able to squeeze out water, and water-soaked walls... Even the air seems to be able to squeeze out water. At this time, you may think you have mistakenly entered a water curtain cave...

Don't panic, don't be afraid. A hero may not ask where he came from, but the mist cannot be without a destination - this is the legendary "return of the south sky".

As the saying goes, you are enjoying the spring in the north, but I am experiencing "wet" and "damp" in the south. My friends in the south are afraid of wet weather. The floor is wet and it is easy to slip. Clothes cannot be dried for several days. Food is about to go moldy...

In order to fight the return of the south wind, everyone has tried their best to show their magical powers. Air conditioners and dehumidifiers are all used, and people's daily postures have also become "spin drying", "blow drying" and "drying".

During the return of the southerly weather, the sudden changes in temperature can easily induce respiratory, cardiovascular, and skin diseases. It may also cause people to feel depressed, irritable, and inexplicably anxious.

How is the return of the south wind formed?

The essence of the return of the south wind is that the temperature of the surface of objects is lower than the dew point temperature of the air, causing water vapor to condense on the surface of objects.

Generally, the return of the south wind requires two weather conditions: the average daily temperature is below 14°C for more than three days, and the temperature suddenly warms up and the humidity increases.

From February to March, the warm and humid air currents from the sea intensify, while the cold air from the north is still active and frequently moves southward. The temperature in southern China changes rapidly from cold to warm. After a long period of low temperature, the warm and humid air currents quickly counterattack, which easily forms the phenomenon of returning to the south. This is like walking into a dry and cold bathroom in the north and suddenly turning on the hot water to the maximum. Soon, water droplets will form on the ceiling and walls of the bathroom.

The return of the south wind is almost a "specialty" of southern China, especially in Guangdong and Guangxi, where the phenomenon of the return of the south wind is often obvious in spring. In addition, friends in southern regions such as Jiangxi also have a deep fear of the return of the south wind.

In the spring of 2012, Guangdong experienced the most severe "return of the south wind" phenomenon in recent years. Taking Guangzhou as an example, there were five "return of the south wind" processes from February to March 2012, namely February 6, 13-15, 21-24, March 4-6, and 15-18. The severe "return of the south wind" caused the quality of greenhouse vegetables in Guangzhou to decline, the yield to decrease, and the price to rise.

How should we deal with the return of the south wind?

The first thing is to close the doors and windows in the morning and evening. Remember to keep the windows in your home tightly closed, especially the windows facing south and southeast, so as not to give the moisture waiting outside any chance to sneak in. If you are worried about the indoor air not circulating, you can open the windows for a short time around noon to ventilate.

Secondly, you can use salt water to mop the floor to speed up the evaporation of water. Just add a few spoons of salt to warm water, wait for the salt to fully dissolve, soak the mop in the salt water, wring it out and start mopping the floor.

You can also turn on the dehumidification function of the air conditioner to reduce the indoor air humidity. If the dehumidification demand is particularly large, you can use a special dehumidifier or heater.

Increase the frequency of using home appliances appropriately. Home appliances generate heat when running, which can effectively dissipate moisture. It is best to power on appliances that have not been used for a long time once or twice a day.

In places such as wardrobes, you can place desiccants, which can be bought in supermarkets or online. Desiccant, dehumidification bags, and moisture absorption boxes used for moisture prevention and dehumidification can absorb water vapor in the air to reduce humidity.

In terms of personal hygiene, special attention should be paid to keeping underwear dry, and use a dryer, hair dryer, etc. to dry them before wearing; pay attention to whether there are gray or yellowish-brown mold spots on towels, and towels with mold spots should be replaced in time.

Some people may wonder why the skin on their face is dry and peeling when it is so humid during the return of the south wind. This is because the temperature is still relatively low during the return of the south wind, the secretion of the sebaceous glands of the human skin decreases, and the pores are not fully dilated, so the skin is still in a state of sebum deficiency. In addition, even in such a humid environment, the evaporation of skin moisture is still greater than normal, so it still feels dry and even peeling.

When the south wind returns, you can replace the moisturizing cream skin care products used in winter with more refreshing emulsion skin care products, such as moisturizing sprays, moisturizing lotions and facial masks.

In addition, you should pay attention to a light diet, eat less greasy and fried foods, drink less carbonated beverages, you can drink some spleen-strengthening and dampness-removing soup, eat some barley porridge, yam, celery, bitter gourd, etc.

You should also pay more attention to self-regulation of your mood and engage in appropriate outdoor exercises to release and divert depressed emotions.

Comprehensive sources: Xinhuanet, Guangzhou Daily, China Weather Network, "China Meteorological" WeChat public account, etc.