reference|http://artefacts.ceda.ac.uk/badc_datadocs/surface/code.html short_description|Low cloud type wmo_code|0513 long_description|Clouds of genera Stratocumulus, Stratus, Cumulus, etc. codeTYPE|S @| Values /|stratocumulus, stratus, cumulus and cumulonimbus invisible owing to darkness, fog, blowing dust or sand, or other phenomena 0|no stratocumulus, stratus, cumulus or cumulonimbus 1|cumulus with little vertical extent and seemingly flattened, or ragged cumulus, other than of bad weather, or both 2|cumulus of moderate or strong vertical extent, generally with protuberances in the form of domes or towers, either accompanied or not by other cumulus or stratocumulus, all having bases at the same level 3|cumulonimbus, the summits of which, at least partially, lack sharp outlines but are neither clearly fibrous (cirriform) nor in the form of an anvil; cumulus, stratocumulus or stratus may also be present 4|stratocumulus formed by the spreading out of cumulus; cumulus may also be present 5|stratocumulus not resulting from the spreading out of cumulus 6|stratus in a more or less continuous later, or in ragged shreds, or both but no stratus fractus of bad weather 7|stratus fractus of bad weather or cumulus fractus of bad weather, or both (pannus), usually below altostratus or nimbostratus 8|cumulus and stratocumulus other than that formed from the spreading out of cumulus; the base of the cumulus is at a different level from that of the stratocumulus 9|cumulonimbus, the upper part of which is clearly fibrous (cirriform) often in the form of an anvil; either accompanied or not by cumulonimbus without anvil or fibrous upper part, by cumulus, stratocumulus, stratus or pannus