Occluded cyclone

{
  "id": "MLC-T-MET-007655",
  "term": "Occluded cyclone",
  "field": "Meteorology and atmospheric science",
  "definition": "A mature extratropical cyclone where the cold front has overtaken the warm front, lifting the warm air mass completely off the surface. This process, known as occlusion, marks a stage in the cyclone's life cycle where its intensity often begins to wane. The occluded front is depicted on weather maps as a purple line with alternating triangles and semicircles.",
  "url": "https://mlchart.com/terminology/meteorology/occluded-cyclone/"
}