Convective SIGMET

{
  "id": "MLC-T-AVN-000278",
  "term": "Convective SIGMET",
  "field": "Aviation and air traffic control",
  "definition": "A weather advisory concerning convective weather significant to the safety of all aircraft. Convective SIGMETs are issued for tornadoes, lines of thunderstorms, embedded thunderstorms of any intensity level, areas of thunderstorms greater than or equal to VIP level 4 with an area coverage of ^4/_(10) (40%) or more, and hail ^3/_4 inch or greater.",
  "abbreviation": "WST",
  "synonyms": [
    "Convective significant meteorological information"
  ],
  "see_also": [
    "Airmen's meteorological information (AIRMET)",
    "CWA",
    "Graphical airmen's meteorological information",
    "SAW",
    "SIGMET"
  ],
  "references": [
    "AIM",
    "FAA Pilot/Controller Glossary"
  ],
  "url": "https://mlchart.com/terminology/aviation/convective-sigmet/"
}