The fog in Chengdu is comparable to Silent Hill. What was the visibility at that time?

At about seven o'clock in the morning, the visibility is less than twenty meters. At noon and afternoon, the fog gradually dispersed, but the visibility was still insufficient 100 meters. On February 27th, 65438, Chengdu was shrouded in fog for a whole day. By the 28th, the fog still existed, but it was better than the fog on the 27th. Because of the heavy fog, many expressway around Chengdu are closed, because the visibility is too low. It is no exaggeration to say that you can't see the present situation clearly ten meters away.

It is said that at the dawn every day, the fog is the thickest, the visibility is the lowest, and the visibility on the ground is particularly low. If you stand on a high place and look out, you can't see the tall building opposite at all, so you can imagine how big it is. At noon, although the fog gradually dispersed, the visibility increased by 50 meters at most, and it is no exaggeration to describe it as Silent Hill. About this fog, netizens in Chengdu have actually become accustomed to it, because in the Chengdu basin, foggy weather often occurs in winter, so netizens still make fun of it. Wonderland? .

In fact, after living in Chengdu for so many years, there are many foggy days, but they dissipate quickly, unlike this fog, which dissipated for two days. Moreover, this fog gives me a feeling that it is not white, but more like gray. It looks gray, like? Smog? Similarly, with the cloudy weather that day, the fog looks thicker and grayer.

According to the forecast of the Meteorological Observatory, the weather in Chengdu will be mainly cloudy in the next few days, and there may be light rain, so foggy weather may appear again. Therefore, I would like to remind friends who travel by car to drive slowly and steadily. After all, the visibility is too low in foggy days, which is easy to cause traffic accidents. Also remind people who go out that they must wear thick clothes when going out, pay attention to keep warm to prevent colds, and wear masks when traveling. After all, wearing a mask at a special time can not only prevent infection, but also block smog in foggy weather.