BRAZIL. PIAUI STATE. On Saturday, October 26, 2024, in broad daylight, a trail of fire was observed in an "iridescent cloud" in the city of Picos and surrounding area, in the state of Piauí, in the northeast of Brazil.
Iridescent means "something that reflects the colors of the rainbow".
There is at least one report recording the appearance of fire in the sky in the state capital, the city of Teserina, located 311 km from Picos.
The "fire in the sky" caught the attention of the population and was the subject of a long report on the meteorological website Climatempo, copied and/or summarized in other media, including social networks.
The phenomenon results from the refraction of incident solar rays on ice crystals suspended in thin clouds, called "cirrus".
According to the "experts", this rare phenomenon occurs when the sun is positioned 58 degrees above the horizon and in the presence of cirrus clouds, which form in the upper troposphere, at an altitude of 10,000 meters and at temperatures below 0ºC.
In these specific and uncommon conditions, the ice crystals work as prisms that decompose the white light coming from the sun, projecting the colored rays in rainbow tones.
What the "experts" do not include in their explanations is that residues of chemical substances released by certain airplanes, reacting to the incidence of this light enhanced by the ice crystals, can produce this type of combustion that generates the flames, the fire track, recorded in the video released by citizens, and not just the colored lights characteristic of normal iridescent clouds.
SOURCES
Fenômeno raro, 'arco-íris de fogo' é visto no céu do Piauí
DIÁRIO DO NORDESTE, OCT28, 2024
https://diariodonordeste.verdesmares.com.br/ultima-hora/pi/fenomeno-raro-arco-iris-de-fogo-e-visto-no-ceu-do-piaui-veja-video-1.3576366
VÍDEO: “arco-íris de fogo” é visto no céu de Teresina
DOL, OCT28, 2024
https://dol.com.br/noticias/brasil/880623/video-arco-iris-de-fogo-e-visto-no-ceu-de-teresina