{"icao":"LTBY","name":"Hasan Polatkan Airport","lat":39.8116,"lon":30.5193,"country":"TR","tz":"Europe/Istanbul","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":78,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","November"],"monthlyHours":[18,5,1,0,0,0,0,0,0,8,18,29],"medianEventHours":3,"season":{"summary":"Fog season runs October through January, peaking in December; fog is mostly a 4 AM\u20139 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 3 hours (local time, 10-year average).","months":["January","October","November","December"],"timeOfDay":"4 AM\u20139 AM","typicallyClearsBy":"11 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in September (10-year average)."},"links":{"page":"https://fogatlas.org/fog/ltby/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=LTBY","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/LTBY.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}