Cumulus congestus cloud (No official abbreviation) is a free convective cloud associated with volcanic eruptions and large-scale fires. Pyrocumulus isn't recognized by the WMO as a distinct genus or species, but is, in essence, cumulus congestus formed under special circumstances that can also cause severe turbulence. Cumulus congestus will mature into cumulonimbus calvus under conditions of sufficient instability. This transformation can be seen by the presence of smooth, fibrous, or striated aspects assumed by the cloud's upper part. This cloud type produces precipitation, often in abundance. These clouds also produce fair weather waterspouts. An approaching weather front often brings mid level clouds such
Cloud dragon 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 at will, and can exhale a powerful blast of air. The cloud dragon appeared under the "dragon" heading in the "Tome of