Gully-squall

{
  "id": "MLC-T-MET-006125",
  "term": "Gully-squall",
  "field": "Meteorology and atmospheric science",
  "definition": "A sudden, strong downdraft of wind that is channeled through a narrow valley, ravine, or gully, causing a localized and intense squall. These winds are produced when cool, dense air from a thunderstorm's outflow or a katabatic flow accelerates as it is funneled by the surrounding terrain. The constriction of the landform concentrates the airflow, leading to a rapid and sometimes hazardous increase in wind speed at the gully's exit.",
  "url": "https://mlchart.com/terminology/meteorology/gully-squall/"
}