Super-cell Lightning, Snyder, Nebraska Under a super-cell thunderstorm, a "wall cloud" or "pedestal cloud" may form. This is frequently associated with tornadoes and micro-bursts. Here, a "cloud-to-ground" lightning bolt strikes from a wall cloud.
Australian Rainbow Photograph by Randy Olson - National Geographic A double rainbow frames termite mounds in Australia's grasslands. Double arcs happen when light is reflected more than once in an atmospheric water droplet.