On September 15, 2015 at approximately 6:30pm MST what appeared to be a ‘Rainbow’ appeared in the SE sky of SE Phoenix Arizona.
Only problem was there was NO rain. It was a towering wall of ‘silica’ (sand/dust) directly opposing the sunset.
The interaction of the sunlight with the particulate matter, quartz/silica revealed the beautiful arch in the sky. It was sort of odd in a sense that we saw nor got one drop of rain and there was very little if any wind before, during or after this observation…not quite sure exactly what was going on here but I know it was not a traditional rainbow.
If you look closely, you can see desert dust hanging off of the arch well up into the sky, literally hanging off of the bow.