Rare sight: The sudden appearance of ‘Fire Rainbow’ (Iridescent Clouds) adorns the US sky

Nature has a way of surprising us with its breathtaking spectacles, and one such rarity that leaves observers in awe is the mesmerizing fire rainbow. This exceptional atmospheric phenomenon, scientifically known as the circumhorizontal arc or iridescent clouds, is a captivating display of color that occurs under very specific conditions, making it an exceedingly exquisite yet extremely uncommon sight in the natural world.

The images captured showcase the elusive fire rainbow, a phenomenon so uncommon that witnessing it is a rarity in itself. Unlike the conventional rainbows we are familiar with, fire rainbows are long bands of colorful light near the clouds, resembling rainbows set ablaze.

The scientific explanation behind this breathtaking display lies in the circumhorizontal arc, occurring when sunlight interacts with tiny ice crystals at high altitudes. These plate-shaped ice crystals, found thousands of meters above the ground, cause sunlight to split into various colors, creating a stunning flickering effect across the sky.

To witness this natural marvel, specific conditions must align. Cirrus clouds, containing plate-shaped ice crystals, must be present at an altitude of around 20,000 feet (~6000m). Furthermore, the sun must be at an angle of 58 degrees with respect to these clouds, allowing the magic of the fire rainbow to unfold.

Despite the common reference to “fire rainbows,” this phenomenon is more accurately described as a halo effect. The sun’s angle causes it to hit the top of the ice crystal plates, resulting in a breathtaking array of colors visible from the ground.

The rarity of fire rainbows adds to their mystique. The alignment of water molecules in a horizontal line is crucial for sunlight to create this enchanting spectacle. Moreover, the entire display lasts for a brief period, typically around half an hour, making it a stroke of luck for those fortunate enough to witness this ephemeral marvel of nature.

In the vast tapestry of natural wonders, the fire rainbow stands out as a rare and captivating masterpiece. Its elusive nature, combined with the precise conditions required for its manifestation, elevates this phenomenon to a realm of extraordinary beauty. As we continue to unravel the mysteries of our planet, the fire rainbow serves as a reminder that even the rarest moments in nature can leave an indelible mark on those fortunate enough to witness them.