Rainbow with lightning (w-758-08)

In gallery: Photos of the month (2006)
Related photos: Atmospheric optics Light in water droplets Primary rainbow

This brilliant and (half)complete rainbow with its secondary bow occurred on May 31st near Springfield, Colorado (USA) at the back of a malformed squall line. A distant cloud-to-ground lightning flash is also visible.

Photo taken with Nikon FE and Sigma 16mm full-frame fisheye lens, on Fuji Provia 100F.