orientaltiger: Rare Fire Rainbows: It looks like a rainbow on fire but these circumhorizontal arcs a
orientaltiger:Rare Fire Rainbows: It looks like a rainbow on fire but these circumhorizontal arcs aren’t rainbows. They are caused by light passing through high-altitude cirrus clouds. The sun has to hit the clouds at precisely 58 degrees and have just enough crystals in order to form in the sky. -- source link
#oooh#clouds#colors