Straight-line distance from the Perth city centre to the reported incident location, or to the mapped fire boundary where an agency has published one. A fire without a published boundary may extend closer than its reported location suggests.
Last 24 hours and next 48 hours across Perth
Range across monitors
About this chart
The observed line is the hourly median across reporting monitors and the shaded range shows local variation. NASA GEOS-CF, CAMS and SILAM are separate total surface PM2.5 research forecasts sampled near the reporting-monitor centre. They are not smoke-only, official health forecasts or blended with observations.
Regional-city pages sample research forecasts at the named centre and summarise current government monitors within 50 km. Nearby fire context uses a 150 km radius.