One of the rarest weather phenomena, Mammatus Clouds. Photo taken by John C. Olsen in Hastings, NE
March 13, 2013 - This cloud appeared over Royal Palm Beach, Florida moments after the announcement of the new Pope Francis of the Catholic Church. (We've also seen at least 2 horrific clouds coming out of the destruction on 9/11. Clouds are all over.)
Weird and Extreme Weather, | Dusky's Wonders
The phenomenon, called a Sundog, happens when ice crystals appear in clouds and refract the sun's rays. Taken in Heyworth, Illinois, US.
Fire rainbows are the rarest of all naturally occurring atmospheric phenomena. For a fire rainbow to occur, cirrus clouds must be 20,000 feet in the air with the precise amount of ice crystals, and the sun must hit the clouds at 58 degrees.