{"city":"Fort Smith","region":"CA-NT","country":"CA","slug":"fort-smith-nt","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"CYSM","name":"Fort Smith Airport","subCat1HoursPerYear":26,"forecast":"verifying"}],"primaryStation":"CYSM","forecast":{"covered":true,"public":false,"cycle":"2026-08-16T00:00:00Z","guidanceSignal":false,"wording":"No fog signal in NWS guidance for the next 48 hours. August typically brings about 2 hours of dense fog here."},"climatology":{"subCat1HoursPerYear":26,"fogSeasonPeakMonths":["October","September"],"medianEventHours":1,"season":{"summary":"Fog season is January, April, May, August, September, October, November, December, peaking in October; fog is mostly a 3 AM\u20139 AM phenomenon; typically thinning out by 11 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","April","May","August","September","October","November","December"],"timeOfDay":"3 AM\u20139 AM","typicallyClearsBy":"11 AM"}},"links":{"page":"https://fogatlas.org/fog/city/fort-smith-nt/","stationPages":["https://fogatlas.org/fog/cysm/"],"verification":"https://fogatlas.org/fog/scorecard/"}}