{"icao":"KNUW","name":"Whidbey Island Naval Air Station (Ault Field)","lat":48.3518,"lon":-122.656,"country":"US","tz":"America/Los_Angeles","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":77,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["September","August"],"monthlyHours":[7,4,3,2,5,3,5,14,13,10,4,9],"medianEventHours":2,"season":{"summary":"Fog season is January, February, May, July, August, September, October, November, December, peaking in August; fog is mostly a 4 AM\u20138 AM phenomenon; typically thinning out by 10 AM; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","May","July","August","September","October","November","December"],"timeOfDay":"4 AM\u20138 AM","typicallyClearsBy":"10 AM"}},"forecast":{"covered":true,"public":true,"cycle":"2026-09-04T13:00:00Z","peakPct":6,"peakAtLocal":"2026-09-04T08:00:00-07:00","wording":"No, fog is unlikely in the next 36 hours \u2014 the calibrated forecast peaks at just 6%. September typically brings about 13 hours of dense fog here."},"links":{"page":"https://fogatlas.org/fog/knuw/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=KNUW","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/KNUW.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}