Jet stream core

{
  "id": "MLC-T-MET-006740",
  "term": "Jet stream core",
  "field": "Meteorology and atmospheric science",
  "definition": "The central region of a jet stream containing the highest wind velocities. This core is defined by a specific isotach, or line of equal wind speed, that encloses the area of maximum flow. The wind speed within the core of a polar or subtropical jet stream must exceed 50 knots, but it can surpass 200 knots in extreme cases.",
  "synonyms": [
    "jet streak"
  ],
  "url": "https://mlchart.com/terminology/meteorology/jet-stream-core/"
}