Cumulonimbus flammagenitus (cloud) column of a volcano. In 2002, various sensing instruments detected 17 distinct cumulonimbus flammageniti in North America alone. Alternate spellings and abbreviations for cumulonimbus flammagenitus that may be found in the literature include Cb-Fg, pyrocumulonimbus, pyro-cumulonimbus, pyroCb, pyro-Cb, pyrocb, and pyro-cb. The World Meteorological Organization does not recognize the cumulonimbus flammagenitus as a distinct cloud type, but instead classifies it simply as cumulonimbus. On 18 January 2003, a supercell thunderstorm formed from a cumulonimbus flammagenitus cloud associated with a severe wildfire, during the 2003 Canberra bushfires in Canberra, Australia. The supercell resulted in a large fire tornado, rated at EF3
Cloud dragon Horrors" (2002) from Necromancer Games. The cloud dragon appeared in Paizo Publishing's book "Pathfinder Roleplaying Game Bestiary 2" (2010), on pages 96–97. Cloud dragon The cloud dragon, also known as the Draco Cumulus Welkin, is a type of dragon in the "Dungeons & Dragons" fantasy role-playing game. The cloud dragon first appeared in the first edition "Monster Manual II" (1983). The cloud dragon appeared in second edition for the Greyhawk setting in the "Monstrous Compendium Greyhawk Appendix" (1990), and is reprinted in the "Monstrous Manual" (1993). A cloud dragon is a neutrally aligned dragon which can take a gaseous form