Pileus Clouds
These are often called "rainbow clouds," and are rare, lenticular cloud formations that form when moist air rises rapidly and encounters stable air.
They are known for their iridescent colors and typically precede or accompany intense weather events like thunderstorms.
These fleeting clouds are popular among photographers and provide insights into atmospheric instability.
The unique phenomenon was captured over the Chinese city of Haikou on the southern island of Hainan on August 21.
🎥interestingaf