On the afternoon of February 2, some netizens in Haikou Town, Fuqing, Fujian Province, noticed that the clouds in the sky were very peculiar, like a crumpled rag or a piece of scratch paper that was folded into a ball and spread out, which was very different from the usual clouds, and some netizens complained that this was simply an "ugly" cloud. So what is this cloud? Is the cold wave coming again?
In fact, this strange cloud layer that appears in Fujian has a name that is very compatible with its appearance, called "rough face cloud" - from the photos taken by netizens, the bottom of this cloud layer fluctuates and fluctuates, unlike other general cloud bottoms will be relatively smooth, so the name rough face cloud is actually more practical. Rough-faced clouds, a relatively rare cloud, were only recognized by the meteorological community around 2012, and according to the World Meteorological Organization, sometimes different illumination levels and thicknesses of rough-faced clouds can produce dramatic visual effects.
How did that rough-faced cloud happen? Is it related to weather systems like cold snaps? Rough-faced clouds mostly appear with stratocumulus and altocumulus clouds, which occur when the atmospheric energy is relatively sufficient, and the appearance of rough-faced clouds often means that there is convective disturbance in the atmosphere, but it is not a disaster cloud, do not worry.
Rough-faced clouds photographed by photographers
The appearance of rough-faced clouds on the southeast coast, which has been relatively rainy recently, means that the increase in water vapor and atmospheric energy in the atmosphere indicates the change in atmospheric environmental conditions - originally there was little water vapor and weak convection, so there was not much precipitation, but now the increase in water vapor and the enhancement of convection may symbolize the imminent approach of rain, and the drought on the southeast coast has the hope of easing. The forecast of the Central Meteorological Observatory has pointed out that from early to mid-February, the rain in Guangdong, Guangxi, Fujian, and Zhejiang, which has been raining less in southern China recently, may increase significantly, and the cumulative rainfall in some areas may exceed 50 mm, so the recent rough-faced clouds may actually be a good sign.