MacDonnell fire, 26 August 2023 MacDonnell
The fire started on 26 August 2023 in MacDonnell, Australia, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,568 hectares from heat detections, spread across a single municipality.
It is the 1775th largest in Northern Territory since 2016 (of 3496 with a page). Number 670 in Australia in 2023, of 1235.
- Burnt area
- 8,568ha
- GWIS perimeter (Copernicus)
- Duration
- 4days
- 26 Aug 2023 – 29 Aug 2023
- Municipalities hit
- 1
- local government areas
- Started on
- 26 Aug
- 2023
- Heat detections
- 240
- in a single hotspot: 108 MW
- Danger at start
- 58
- Extreme · FWI index
- Energy released
- 3.1GW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 54 days without rain (1 mm or more) when it started.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
MacDonnell where it started8,579 ha reached on 26 Aug0.0 %
Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.
The weather day by day
ECMWF ERA5 reanalysis at the fire location, the standard reference for past weather, and the Canadian Fire Weather Index (the same system Copernicus uses), computed by WorldFires from that data. Days after the fire run until the first rain.
Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 26 Aug | 25.9 °C | 14 % | 46 km/h | 0.0 mm | Extreme 58 |
| 27 Aug | 26.4 °C | 13 % | 37 km/h | 0.0 mm | Very high 49 |
| 28 Aug | 26.9 °C | 12 % | 29 km/h | 0.0 mm | Very high 44 |
| 29 Aug | 28.7 °C | 13 % | 24 km/h | 0.0 mm | Very high 42 |
| 30 Aug after | 27.0 °C | 19 % | 37 km/h | 0.0 mm | Very high 49 |
| 31 Aug after | 21.9 °C | 27 % | 39 km/h | 0.0 mm | Very high 42 |
| 1 Sept after | 22.6 °C | 21 % | 35 km/h | 0.0 mm | Very high 39 |
| 2 Sept after | 27.6 °C | 17 % | 31 km/h | 0.0 mm | Very high 40 |
| 3 Sept after | 31.3 °C | 10 % | 50 km/h | 0.0 mm | Extreme 66 |
| 4 Sept after | 28.0 °C | 17 % | 41 km/h | 0.0 mm | Extreme 61 |
| 5 Sept after | 27.2 °C | 18 % | 38 km/h | 0.0 mm | Extreme 54 |
| 6 Sept after | 30.9 °C | 16 % | 51 km/h | 0.0 mm | Extreme 64 |
| 7 Sept after | 24.6 °C | 20 % | 50 km/h | 0.0 mm | Extreme 61 |
| 8 Sept after | 19.7 °C | 23 % | 53 km/h | 0.0 mm | Extreme 54 |
| 9 Sept after | 19.1 °C | 18 % | 38 km/h | 0.0 mm | Very high 46 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.
The smoke
CAMS · CopernicusOn 29 August 2023 the air beside the fire reached 17 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.
Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)
Detections table · 240Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the MacDonnell fire last?
- GWIS (Copernicus) dates it between 26 August 2023 and 29 August 2023: 4 days between the first and last heat detection of the perimeter.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 8,568 hectares (85.7 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered MacDonnell (8,579 ha, 0.0 %).
- What was the weather like?
- During the fire the temperature reached 28.7 °C, humidity dropped to 12 % and gusts hit 46 km/h. The fire danger index (FWI) reached 58, class Extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Australia (geoBoundaries). It is not an official report.
Where to verify it
A satellite detection is not an official report. Final figures and the fire’s status are published by each country’s emergency service.
Emergency number: 000
Satellite cross-check
Does something look wrong on this page?
This page is built from satellite data and official records, and it sometimes gets things wrong: the wrong dates, the wrong town, two fires merged into one, or something that was not a wildfire at all. If you know this fire first-hand (you live nearby, saw it, fought it or reported on it), tell us what really happened and we will check it.
Report an error
Where this data comes from
The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. Heat detections come from the VIIRS sensors aboard Suomi-NPP and NOAA-20, distributed by NASA FIRMS at 375 m resolution. Municipal boundaries come from geoBoundaries ADM2 (Creative Commons Attribution 4.0 International (CC BY 4.0)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.