Altostratus cloud size again. During the sampling of one cloud, the scientists noted a halo while flying near the top of the cloud, which indicated that the ice crystals were hexagonal near the top. However, farther down, the ice crystals became more conglomerated. Altostratus tends to form ahead of a warm or occluded front, the altostratus gradually thickening into rain bearing nimbostratus. However it can also occur together with cumulus congestus or cumulonimbus at a cold front. "Velum" This is considered a type of cumulonimbus cloud so it is not listed. Altostratus cloud Altostratus is a middle altitude cloud genus belonging to
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