{"city":"Alpnach","region":"CH-OW","country":"CH","slug":"alpnach","updated":"2026-08-16T02:45Z","window":{"start":"2016-01-01","through":"2026-08-15"},"stations":[{"icao":"LSMA","name":"Alpnach Air Base","subCat1HoursPerYear":91,"forecast":"climatology"}],"primaryStation":"LSMA","forecast":{"covered":false,"public":false,"wording":"No fog forecast feed exists for this station. August typically brings about 1 hour of dense fog here (10-year average)."},"climatology":{"subCat1HoursPerYear":91,"fogSeasonPeakMonths":["December","November"],"medianEventHours":2,"season":{"summary":"Fog season runs October through February, peaking in December; fog is mostly a 3 AM\u201310 AM phenomenon; typically thinning out by noon; a typical event lasts about 2 hours (local time, 10-year average).","months":["January","February","October","November","December"],"timeOfDay":"3 AM\u201310 AM","typicallyClearsBy":"noon"}},"links":{"page":"https://fogatlas.org/fog/city/alpnach/","stationPages":["https://fogatlas.org/fog/lsma/"],"verification":"https://fogatlas.org/fog/scorecard/"}}