{"icao":"KBFF","name":"Western Neb. Rgnl/William B. Heilig Airport","lat":41.874,"lon":-103.596,"country":"US","tz":"America/Denver","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":32,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["March","January"],"monthlyHours":[4,4,5,1,3,1,0,4,2,3,3,2],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, May, August, September, October, November, December, peaking in March; fog is mostly a 4 AM\u20137 AM phenomenon; typically thinning out by 9 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\u20137 AM","typicallyClearsBy":"9 AM"}},"forecast":{"covered":true,"public":false,"cycle":"2026-09-04T13:00:00Z","guidanceSignal":false,"wording":"No fog signal in NWS guidance for the next 48 hours. September typically brings about 2 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kbff/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KBFF","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KBFF.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}