A circumhorizontal arc, often called a "fire rainbow," is a rare optical phenomenon that creates a bright, horizontal band of vivid colors in the sky. It forms when sunlight passes through flat, hexagonal ice crystals high up in wispy cirrus clouds. The ice crystals act like a prism, splitting the light into a spectrum with red on the very top edge and violet on the bottom.

September 23, 2021 ~ Bay Ridge Brooklyn

I took the pic above of a Circumhorizon Arc peeking through the clouds above the Verrazano Bridge outside my home, on my grandson Noah's 16th birthday. Happy Birthday Noah. The rainbow symbolizes luck and hope.

Circumhorizontal arc over the Nepalese Himalaya

Circumhorizontal Arc over peak 12225 in the Sierra Mountains of California