Instability line

{
  "id": "MLC-T-MET-006565",
  "term": "Instability line",
  "field": "Meteorology and atmospheric science",
  "definition": "Any non-frontal line or narrow band of convective activity, such as a row of showers or thunderstorms in moist, unstable air. It often develops ahead of a cold front, but it is not itself a front and lacks the air mass contrast that defines one. The term is the general one, of which a squall line, a line of active thunderstorms, is the intense form.",
  "see_also": [
    "pseudo front",
    "prefrontal squall line"
  ],
  "url": "https://mlchart.com/terminology/meteorology/instability-line/"
}