{"icao":"KTWF","name":"Joslin Field Magic Valley Regional Airport","lat":42.4818,"lon":-114.488,"country":"US","tz":"America/Boise","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":44,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","January"],"monthlyHours":[16,8,2,0,0,0,0,0,0,0,1,17],"medianEventHours":1,"season":{"summary":"Fog season runs December through February, peaking in December; fog is mostly a 9 PM\u201310 AM phenomenon; typically thinning out by 6 PM; a typical event lasts about 1 hour (local time, 10-year average).","months":["January","February","December"],"timeOfDay":"9 PM\u201310 AM","typicallyClearsBy":"6 PM"}},"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. dense fog (visibility under a mile) is rare here in September."},"links":{"page":"https://fogatlas.org/fog/ktwf/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KTWF","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KTWF.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}