Indefinite ceiling

{
  "id": "MLC-T-MET-006483",
  "term": "Indefinite ceiling",
  "field": "Meteorology and atmospheric science",
  "definition": "A meteorological condition where the vertical visibility is restricted due to obscuring phenomena, such as fog, heavy snow, or blowing dust, making it impossible to determine a specific cloud base height. In such cases, the ceiling is reported as indefinite, and the vertical visibility is given instead. This condition significantly impacts aviation operations.",
  "synonyms": [
    "ragged ceiling"
  ],
  "url": "https://mlchart.com/terminology/meteorology/indefinite-ceiling/"
}