Dense fog advisory

{
  "id": "MLC-T-MET-000680",
  "term": "Dense fog advisory",
  "field": "Meteorology and atmospheric science",
  "term_source": "Dense Fog Advisory",
  "definition": "This product is issued when fog reduces visibility to 1/4 mile or less over a widespread area. For marine products: an advisory for widespread or localized fog reducing visibilities to regionally or locally defined limitations not to exceed 1 nautical mile.",
  "references": [
    "NWS Glossary"
  ],
  "url": "https://mlchart.com/terminology/meteorology/dense-fog-advisory/"
}