{"icao":"LFOK","name":"Chalons Vatry airport","lat":48.7733,"lon":4.2061,"country":"FR","tz":"Europe/Paris","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":183,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","November"],"monthlyHours":[39,11,5,3,5,2,1,2,7,19,39,54],"medianEventHours":2,"season":{"summary":"Fog season runs October through January, peaking in December; fog is mostly a 11 PM\u2013noon phenomenon; typically thinning out by 4 PM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","October","November","December"],"timeOfDay":"11 PM\u2013noon","typicallyClearsBy":"4 PM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 7 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/lfok/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=LFOK","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/LFOK.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}