Balloon ceiling

{
  "id": "MLC-T-MET-003792",
  "term": "Balloon ceiling",
  "field": "Meteorology and atmospheric science",
  "definition": "The ceiling classification used in United States weather observing practice when cloud height is obtained by timing a small balloon from its release until it disappears into the cloud base. The height follows from the balloon's known ascent rate multiplied by the time taken. It is a different quantity from a balloon's burst or float altitude.",
  "url": "https://mlchart.com/terminology/meteorology/balloon-ceiling/"
}