{"icao":"KSAW","name":"Marquette/Sawyer International Airport","lat":46.3515,"lon":-87.3959,"country":"US","tz":"America/Detroit","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":182,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["December","April"],"monthlyHours":[15,10,21,23,11,11,7,15,18,11,9,32],"medianEventHours":2,"season":{"summary":"Fog season runs August through June, peaking in December; fog is mostly a 3 AM\u201310 AM phenomenon; typically thinning out by 7 PM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","March","April","May","June","August","September","October","November","December"],"timeOfDay":"3 AM\u201310 AM","typicallyClearsBy":"7 PM"}},"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 18 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/ksaw/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KSAW","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KSAW.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}