{"icao":"CYMM","name":"Fort McMurray International Airport","lat":56.6533,"lon":-111.222,"country":"CA","tz":"America/Edmonton","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":33,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["September","August"],"monthlyHours":[4,1,1,3,3,3,2,4,4,3,2,2],"medianEventHours":1,"season":{"summary":"Fog season runs April through January, peaking in January; fog is mostly a 2 AM\u20139 AM phenomenon; typically thinning out by noon; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","April","May","June","July","August","September","October","November","December"],"timeOfDay":"2 AM\u20139 AM","typicallyClearsBy":"noon"}},"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 4 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/cymm/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=CYMM","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/CYMM.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}