An amazing natural phenomenon – the “fiery rainbow” – on Wednesday, May 17, was observed in the northwest of the US state of Georgia, reports The Weather Channel.
“Fiery rainbow” is officially called a round-horizontal or okologorizontalnoy arc. This is one of the halo species. For the appearance of a relatively rare optical phenomenon in the atmosphere, certain conditions are necessary: the sun must be above 58 degrees above the horizon, high light clouds must also be observed in the sky, and flat hexagonal ice crystals should be located horizontally in them.
