Have you ever observed a rare and striking rainbow cloud appear in the sky? Sometimes unnoticed imaginations convert into rare and unique shapes. Just like a stunning phenomenon picture was captured floating high above Eastern Victoria, Australia. It almost seems to be a portal to one more dimension, complete with a rainbow making a gesture to the other side, but there’s a scientific explanation for these bewitching cloudy formations recognized as fall streak holes. It starts with a process famous as supercooling.
Therefore, supercooling is when the temperature of a liquid is lowered below freezing without it becoming a solid. In this state, the particles will crystallize if even a single “seed crystal” is available to trigger the process. The Bergeron Process is when a mixed-phase cloud, containing supercooled liquid and ice, undergoes rapid crystal growth in the center through the water around rapidly evaporates this is what gives you that hole-punched-out-in-the-middle-of-the-sky effect.
Moreover, Fall streak holes originated from a drop in atmospheric pressure and temperature which familiarizes ice crystals into a cloud that has a combination of liquid and super-cooled liquids. Hence, an aircraft flying through a cloud under these conditions can set off a domino effect and start these bizarre marvels. Nevertheless, also recognized as sky punches, or hole-punch clouds these natural events are attractive and unusual, rare enough that they are often mistaken for UFOs. Check out some other examples of this extraordinary effect.