The next Blue Moon is August A Blue Moon is the second full moon of the calendar month. August 2012 is a month with two full moons a Blue Moon month – but it’s Blue in name only. The first full moon is August
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.
A halo develops when light enters one side of a columnar ice crystal and exits through another side. The light is refracted when it enters the ice crystal and once again when it leaves the ice crystal.