{"icao":"KBTL","name":"Battle Creek Executive Airport at Kellogg Field","lat":42.3073,"lon":-85.2515,"country":"US","tz":"America/Detroit","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":38,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["January","February"],"monthlyHours":[8,4,3,1,2,1,1,3,4,2,3,5],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, May, August, September, October, November, December, peaking in January; fog is mostly a 4 AM\u20139 AM phenomenon; typically thinning out by 10 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","May","August","September","October","November","December"],"timeOfDay":"4 AM\u20139 AM","typicallyClearsBy":"10 AM"}},"forecast":{"covered":true,"public":true,"cycle":"2026-09-04T13:00:00Z","peakPct":5,"peakAtLocal":"2026-09-05T05:00:00-04:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 5%. September typically brings about 4 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kbtl/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KBTL","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KBTL.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}