On the morning of February 28, when the clear sky area in the southern part of the mainland began to shrink, the amount of sky clouds increased, and even when the sky in some areas began to turn cloudy, the clouds in many places in Guangdong increased significantly, and some netizens in Shaoguan noticed a strange scene in the sky - the clouds in the sky opened a strange cloud hole, like a science fiction movie in which the sky opened a huge "portal", and like a typhoon eye directly arrived, the photo made many netizens cry out in disbelief.
Shaoguan, Guangdong, from Weibo netizen @ Peach Oolong Small Tea Bag
So what is this strange cloud cave phenomenon? Is the weather about to change? Could it be related to some anomaly? Is it an earthquake cloud? It's a bit hard to believe your eyes, but it does exist, and it's not an earthquake cloud, but a rare atmospheric phenomenon— the Rocky Cave Cloud.
The manifestation of the Falling Cave cloud is basically the appearance of an opening in a relatively thin layer of clouds, which are generally relatively thin ultra-cold water drip clouds, forming well-defined circular (and sometimes linear) holes. A manta cloud or a wisp of cirrus usually falls from the central part of the hole and usually increases over time. When viewed directly below, the cloud cave is usually circular, but may be elliptical when viewed from a distance. For example, on the morning of February 28, the high-definition visible light satellite cloud map also captured the cloud hole that appeared in the clouds in northern Guangdong, which was observed by some netizens from the ground.
The appearance of the Falling Hata Cave cloud is not accidental, it is usually linear (in the form of dissipation trajectories) when it is directly generated by the interaction of aircraft with clouds. Flag-like clouds usually detach from gradually expanding dissipation trajectories and appear in altocumulus and cirrocumulus. On the morning of February 28, satellite cloud maps also captured the development of the luowandong cloud in the southern region into a huge cloud cave in the southern part of Jiangxi and northern Guangdong.
Of course, the appearance of the Luohat Cave cloud also means that on February 28, the water vapor over the southern part of the mainland and many parts of south China began to increase, and droplets and ice crystals began to form a thick cloud layer, which corresponds to the increase in water vapor transport in the southern part of the mainland from February 28, so that the central and eastern regions once again have rain and snow weather conditions. Therefore, it can be said that starting from the spectacular Falling Hata Cave cloud, there are signs of increased rain and snow in the central and eastern parts of the mainland.
Appears in the Clouds of the Fallen Hata Cave in Austria