{"icao":"RJSM","name":"Misawa Airport / Misawa Air Base","lat":40.7032,"lon":141.368,"country":"JP","tz":"Asia/Tokyo","updated":"2026-09-04T14:25Z","window":{"start":"2016-01-01","through":"2026-08-15"},"climatology":{"subCat1HoursPerYear":207,"bandDefinition":"visibility < ~800 m OR ceiling < 200 ft","fogSeasonPeakMonths":["July","June"],"monthlyHours":[8,10,7,7,20,48,68,20,4,0,1,8],"medianEventHours":1,"season":{"summary":"Fog season runs May through August, peaking in July; fog is mostly a 10 PM\u20137 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 1 hour (local time, 10-year average).","months":["May","June","July","August"],"timeOfDay":"10 PM\u20137 AM","typicallyClearsBy":"9 AM"}},"forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. September typically brings about 4 hours of dense fog here (10-year average)."},"links":{"page":"https://fogatlas.org/fog/rjsm/","liveForecastApi":"https://fogatlas.org/api/forecast","liveObservationsApi":"https://fogatlas.org/api/metar?ids=RJSM","hourlyClimatologyDetail":"https://fogatlas.org/data/detail/RJSM.json","verification":"https://fogatlas.org/fog/scorecard/","methodology":"https://fogatlas.org/#methodology"}}