{"icao":"KBIS","name":"Bismarck Municipal Airport","lat":46.7727,"lon":-100.7469,"country":"US","tz":"America/Chicago","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":34,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["January","March"],"monthlyHours":[8,2,5,4,1,1,1,2,1,1,4,4],"medianEventHours":1,"season":{"summary":"Fog season is January, February, March, April, August, November, December, peaking in January; fog is mostly a 5 AM\u20139 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","March","April","August","November","December"],"timeOfDay":"5 AM\u20139 AM","typicallyClearsBy":"11 AM"}},"forecast":{"covered":true,"public":false,"cycle":"2026-09-04T13:00:00Z","guidanceSignal":true,"wording":"NWS guidance shows a fog signal here in the next 48 hours. This station's calibrated percentages publish after live verification clears the accuracy bar. September typically brings about 1 hour of dense fog here."},"links":{"page":"https://fogatlas.org/fog/kbis/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KBIS","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KBIS.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}