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Ten Cloud Genera - JSON

The Ten Cloud Genera is a fundamental cloud classification system established in the International Cloud Atlas published by the World Meteorological Organization (WMO). Based on the Latin nomenclature proposed by Luke Howard in 1803, it classifies clouds into ten genera according to their morphological characteristics. This classification serves as an international standard for meteorological observation worldwide and forms an essential foundation for weather forecasting and meteorological research.

meteorology clouds World Meteorological Organization International Cloud Atlas weather forecasting atmospheric science

[
  {
    "code": "Ci",
    "slug": "cirrus",
    "name": "Cirrus",
    "description": "Detached clouds in the form of white, delicate filaments with a silky sheen.",
    "level": "High-level cloud",
    "altitudeRange": "Above 5,000m"
  },
  {
    "code": "Cc",
    "slug": "cirrocumulus",
    "name": "Cirrocumulus",
    "description": "Thin, white patch or layer of cloud composed of very small elements arranged regularly.",
    "level": "High-level cloud",
    "altitudeRange": "Above 5,000m"
  },
  {
    "code": "Cs",
    "slug": "cirrostratus",
    "name": "Cirrostratus",
    "description": "Transparent, whitish cloud veil of fibrous or smooth appearance that produces halo phenomena.",
    "level": "High-level cloud",
    "altitudeRange": "Above 5,000m"
  },
  {
    "code": "Ac",
    "slug": "altocumulus",
    "name": "Altocumulus",
    "description": "White or grey patch, sheet or layer of cloud with rounded masses or rolls.",
    "level": "Middle-level cloud",
    "altitudeRange": "2,000m - 7,000m"
  },
  {
    "code": "As",
    "slug": "altostratus",
    "name": "Altostratus",
    "description": "Greyish or bluish cloud sheet or layer that reveals the Sun as through ground glass.",
    "level": "Middle-level cloud",
    "altitudeRange": "2,000m - 7,000m"
  },
  {
    "code": "Ns",
    "slug": "nimbostratus",
    "name": "Nimbostratus",
    "description": "Grey cloud layer that causes continuous rain or snow and completely blocks the Sun.",
    "level": "Middle-level cloud",
    "altitudeRange": "2,000m - 7,000m"
  },
  {
    "code": "Sc",
    "slug": "stratocumulus",
    "name": "Stratocumulus",
    "description": "Grey or whitish patch, sheet or layer of cloud with dark parts and rounded masses or rolls.",
    "level": "Low-level cloud",
    "altitudeRange": "Below 2,000m"
  },
  {
    "code": "St",
    "slug": "stratus",
    "name": "Stratus",
    "description": "Generally grey cloud layer with a fairly uniform base that may produce drizzle or snow.",
    "level": "Low-level cloud",
    "altitudeRange": "Below 2,000m"
  },
  {
    "code": "Cu",
    "slug": "cumulus",
    "name": "Cumulus",
    "description": "Detached, dense clouds with sharp outlines developing vertically, with tops resembling cauliflower.",
    "level": "Low-level cloud",
    "altitudeRange": "Below 2,000m (base)"
  },
  {
    "code": "Cb",
    "slug": "cumulonimbus",
    "name": "Cumulonimbus",
    "description": "Heavy and dense cloud with considerable vertical extent, with the top flattening into an anvil shape.",
    "level": "Low-level cloud",
    "altitudeRange": "Below 2,000m (base) to tropopause"
  }
]