{"icao":"KPTK","name":"Oakland County International Airport","lat":42.6655,"lon":-83.4201,"country":"US","tz":"America/Detroit","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":57,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["January","December"],"monthlyHours":[16,8,5,2,0,0,1,1,3,6,4,11],"medianEventHours":2,"season":{"summary":"Fog season runs October through March, peaking in January; fog is mostly a 4 AM\u20138 AM phenomenon; typically thinning out by 1 PM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","October","November","December"],"timeOfDay":"4 AM\u20138 AM","typicallyClearsBy":"1 PM"}},"forecast":{"covered":true,"public":true,"cycle":"2026-09-04T13:00:00Z","peakPct":11,"peakAtLocal":"2026-09-05T07:00:00-04:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 11%. September typically brings about 3 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kptk/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KPTK","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KPTK.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}