Lifting trough

{
  "id": "MLC-T-MET-006940",
  "term": "Lifting trough",
  "field": "Meteorology and atmospheric science",
  "definition": "A trough in the upper-level flow that is moving poleward and losing amplitude as it lifts out of the pattern, instead of deepening toward the equator. It is the opposite of a digging trough, which amplifies as its axis extends equatorward and cold air pushes south. Forecasters read a lifting trough as a weakening system, because the warm air to its south is able to push back northward.",
  "url": "https://mlchart.com/terminology/meteorology/lifting-trough/"
}