Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole 25 020012 CH 40 020012 CL 42 020012 Altocumulus cumulogenitus (or cumulonimbogenitus) 26 020012 Cloud not visible owing to darkness, fog, duststorm, sandstorm, or other analogous phenomena 59 020012 Cirrus (Ci) 0 020012 Altocumulus castellanus or floccus 28 020012 Stratocumulus cumulogenitus 34 020012 Stratus nebulosus or Stratus fractus other than of bad weather,* or both 36 020012 Stratus fractus or Cumulus fractus of bad weather,* or both (pannus), usually below Altostratus or Nimbostratus 37 020012 Cloud type No CM clouds 20 020012 Missing value 63 020012 2014-09-03T09:54:43.408Z Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively Invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered 16 020012 Cirrostratus not progressively invading the sky and not entirely covering it 18 020012 No CH clouds 10 020012 CM 41 020012 Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus 39 020012 Cirrocumulus alone, or Cirrocumulus predominant among the CH clouds 19 020012 Cumulus humilis or Cumulus fractus other than of bad weather,* or both 31 020012 Cirrus fibratus, sometimes uncinus, not progressively invading the sky 11 020012 Cirrus spissatus cumulonimbogenitus 13 020012 1 Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus 27 020012 Cirrocumulus (Cc) 1 020012 Altocumulus of a chaotic sky, generally at several levels 29 020012 Nimbostratus (Ns) 5 020012 Cirrostratus (Cs) 2 020012 Altostratus (As) 4 020012 Stratocumulus (Sc) 6 020012 CH clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or because of a continuous layer of lower clouds 60 020012 Cumulus (Cu) 8 020012 Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels 38 020012 Altostratus translucidus 21 020012 Altostratus opacus or Nimbostratus 22 020012 Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels 24 020012 No CL clouds 30 020012 Cumulus mediocris or congestus, Towering cumulus (TCU), with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level 32 020012 Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus 12 020012 Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole 14 020012 Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus 33 020012 Stratocumulus other than Stratocumulus cumulogenitus 35 020012 Altocumulus (Ac) 3 020012 Stratus (St) 7 020012 CM clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or because of continuous layer of lower clouds 61 020012 Cumulonimbus (Cb) 9 020012 CL clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena 62 020012 Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon 15 020012 Cirrostratus covering the whole sky 17 020012 Altocumulus translucidus at a single level 23 020012 2014-09-03T09:54:43.473Z Cirrostratus not progressively invading the sky and not entirely covering it 1 marqh (admin) 18 1 61 CM clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or because of continuous layer of lower clouds marqh (admin) 2014-09-03T09:54:43.615Z marqh (admin) 2014-09-03T09:54:43.49Z 1 19 Cirrocumulus alone, or Cirrocumulus predominant among the CH clouds 1 62 CL clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena 2014-09-03T09:54:43.624Z marqh (admin) 28 1 2014-09-03T09:54:43.443Z Altocumulus castellanus or floccus marqh (admin) 2014-09-03T09:54:43.468Z 16 marqh (admin) 1 Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively Invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered marqh (admin) Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon 1 2014-09-03T09:54:43.628Z 15 29 1 marqh (admin) Altocumulus of a chaotic sky, generally at several levels 2014-09-03T09:54:43.52Z 2014-09-03T09:54:43.632Z 17 marqh (admin) Cirrostratus covering the whole sky 1 marqh (admin) 1 CH clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or because of a continuous layer of lower clouds 2014-09-03T09:54:43.548Z 60 1 38 2014-09-03T09:54:43.558Z marqh (admin) Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels 1 marqh (admin) Stratus fractus or Cumulus fractus of bad weather,* or both (pannus), usually below Altostratus or Nimbostratus 37 2014-09-03T09:54:43.455Z 25 Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively invading the sky; these Altocumulus clouds generally thicken as a whole 2014-09-03T09:54:43.417Z 1 marqh (admin) marqh (admin) 13 1 2014-09-03T09:54:43.507Z Cirrus spissatus cumulonimbogenitus Stratus (St) 7 marqh (admin) 1 2014-09-03T09:54:43.611Z 1 39 Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus marqh (admin) 2014-09-03T09:54:43.486Z 1 marqh (admin) 27 2014-09-03T09:54:43.512Z Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus 26 2014-09-03T09:54:43.43Z marqh (admin) 1 Altocumulus cumulogenitus (or cumulonimbogenitus) Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole 1 14 2014-09-03T09:54:43.588Z marqh (admin) 2014-09-03T09:54:43.553Z 1 Cumulus (Cu) marqh (admin) 8 marqh (admin) 1 Cirrus fibratus, sometimes uncinus, not progressively invading the sky 2014-09-03T09:54:43.499Z 11 1 59 Cloud not visible owing to darkness, fog, duststorm, sandstorm, or other analogous phenomena 2014-09-03T09:54:43.434Z marqh (admin) marqh (admin) 35 Stratocumulus other than Stratocumulus cumulogenitus 1 2014-09-03T09:54:43.604Z 2014-09-03T09:54:43.636Z marqh (admin) 23 Altocumulus translucidus at a single level 1 marqh (admin) 9 1 Cumulonimbus (Cb) 2014-09-03T09:54:43.619Z 36 marqh (admin) 1 Stratus nebulosus or Stratus fractus other than of bad weather,* or both 2014-09-03T09:54:43.451Z 1 Patches (often lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels 2014-09-03T09:54:43.57Z 24 marqh (admin) 1 marqh (admin) 12 2014-09-03T09:54:43.583Z Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus 1 33 Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus marqh (admin) 2014-09-03T09:54:43.597Z Altostratus translucidus marqh (admin) 2014-09-03T09:54:43.562Z 21 1 marqh (admin) 1 Altocumulus (Ac) 2014-09-03T09:54:43.608Z 3 marqh (admin) 1 22 2014-09-03T09:54:43.566Z Altostratus opacus or Nimbostratus 10 2014-09-03T09:54:43.477Z 1 marqh (admin) No CH clouds marqh (admin) 4 1 2014-09-03T09:54:43.532Z Altostratus (As) Stratocumulus cumulogenitus 2014-09-03T09:54:43.447Z 34 1 marqh (admin) marqh (admin) 2014-09-03T09:54:43.408Z Cloud type 0-20-012 1 2014-09-03T09:54:43.495Z 1 31 marqh (admin) Cumulus humilis or Cumulus fractus other than of bad weather,* or both 1 5 Nimbostratus (Ns) marqh (admin) 2014-09-03T09:54:43.524Z 32 2014-09-03T09:54:43.579Z marqh (admin) Cumulus mediocris or congestus, Towering cumulus (TCU), with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level 1 marqh (admin) 1 2014-09-03T09:54:43.459Z 20 No CM clouds 1 2014-09-03T09:54:43.537Z marqh (admin) Stratocumulus (Sc) 6 41 1 marqh (admin) CM 2014-09-03T09:54:43.482Z 2014-09-03T09:54:43.426Z marqh (admin) 1 42 CL 1 marqh (admin) No CL clouds 30 2014-09-03T09:54:43.575Z Cirrus (Ci) 0 2014-09-03T09:54:43.438Z 1 marqh (admin) 1 2014-09-03T09:54:43.516Z 1 Cirrocumulus (Cc) marqh (admin) 2014-09-03T09:54:43.463Z 63 1 Missing value marqh (admin) marqh (admin) 2014-09-03T09:54:43.528Z 1 2 Cirrostratus (Cs) 2014-09-03T09:54:43.422Z 40 marqh (admin) CH 1