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AU · Australia · –

West Arnhem fire, 29 June 2024 West Arnhem

Out · last detection 14 Jul 2024, 04:39 UTC

The fire started on 29 June 2024 in West Arnhem, Australia, and satellites saw it burning for 16 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,619 hectares from heat detections, spread across a single municipality.

This entry is probably a savanna fire in Australia’s tropical north, not a bushfire like those in the south of the country. Millions of hectares of northern savanna and grassland burn every year: much of it in burns lit on purpose early in the dry season (traditional fire management, parks and cattle stations), the rest in grass fires that return to the same ground every few years. This is our assumption, based on the location; it is not confirmed. That is why it is left out of the wildfire rankings.

Burnt area
6,619ha
GWIS perimeter (Copernicus)
Duration
16days
29 Jun 2024 – 14 Jul 2024
Municipalities hit
1
local government areas
Started on
29 Jun
2024
Heat detections
248
in a single hotspot: 44 MW
Danger at start
19
Moderate · FWI index
Average daily power
113MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 29 Jun14 Jul
14 Jul 2024

How it evolved, day by day

29 Jun 2024 · 3 MW · 1 30 Jun 2024 · 172 MW · 44 1 Jul 2024 · 90 MW · 18 2 Jul 2024 · 641 MW · 63 3 Jul 2024 · 288 MW · 52 4 Jul 2024 · 179 MW · 43 5 Jul 2024 · 17 MW · 9 8 Jul 2024 · 23 MW · 4 9 Jul 2024 · 30 MW · 7 10 Jul 2024 · 9 MW · 2 11 Jul 2024 · 11 MW · 1 13 Jul 2024 · 1 MW · 2 14 Jul 2024 · 9 MW · 2
29 Jun 2 Jul 5 Jul 10 Jul 14 Jul

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

29°high
41km/h · peak gust
34%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

97% of the perimeter overlaps earlier fires recorded since 2016: 4,744 ha in 2016, 3,295 ha in 2017, 4,569 ha in 2018, 1,673 ha in 2019, 63 ha in 2020, 3,109 ha in 2021, 3,417 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 6,432 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 4.2% of the area of London (66 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. West Arnhem where it started
    6,658 ha reached on 29 Jun
    0.1 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.

People and buildings inside the perimeter

GHSL 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)

Started with 60 days without rain: 7.6 % of the area in Australia

Day High Min. humidity Peak gust Rain Danger (FWI)
29 Jun 29.1 °C 65 % 20 km/h 0.0 mm Moderate 19
30 Jun 28.1 °C 64 % 23 km/h 0.0 mm Moderate 20
1 Jul 28.8 °C 61 % 28 km/h 0.0 mm High 22
2 Jul 29.0 °C 52 % 41 km/h 0.0 mm High 28
3 Jul 28.8 °C 42 % 39 km/h 0.0 mm High 33
4 Jul 28.1 °C 35 % 39 km/h 0.0 mm Very high 38
5 Jul 27.9 °C 37 % 30 km/h 0.0 mm High 34
6 Jul 27.6 °C 65 % 24 km/h 0.0 mm Moderate 21
7 Jul 28.2 °C 65 % 25 km/h 0.0 mm High 22
8 Jul 28.6 °C 61 % 30 km/h 0.0 mm High 24
9 Jul 28.7 °C 58 % 26 km/h 0.0 mm High 23
10 Jul 29.4 °C 42 % 28 km/h 0.0 mm High 29
11 Jul 29.0 °C 46 % 28 km/h 0.0 mm High 29
12 Jul 28.7 °C 34 % 17 km/h 0.0 mm High 28
13 Jul 26.9 °C 45 % 21 km/h 0.0 mm High 29
14 Jul 27.9 °C 35 % 26 km/h 0.0 mm High 33
15 Jul after 26.6 °C 46 % 20 km/h 0.0 mm High 28
16 Jul after 27.9 °C 38 % 30 km/h 0.0 mm High 29
17 Jul after 26.0 °C 27 % 41 km/h 0.0 mm Very high 43
18 Jul after 25.7 °C 34 % 35 km/h 0.0 mm Very high 40
19 Jul after 25.1 °C 40 % 40 km/h 0.0 mm Very high 40
20 Jul after 26.3 °C 36 % 31 km/h 0.0 mm High 34
21 Jul after 26.7 °C 36 % 31 km/h 0.0 mm High 37
22 Jul after 26.6 °C 39 % 31 km/h 0.0 mm High 37
23 Jul after 26.6 °C 48 % 28 km/h 0.0 mm High 31
24 Jul after 26.6 °C 57 % 23 km/h 0.0 mm High 24

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 22 Jun 2024
After · 21 Jul 2024

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 · Copernicus

On 6 July 2024 the air beside the fire reached 48 µg/m³ of PM2.5. That day averaged 23: 1.5 times the WHO daily guideline (15).

PM2.5 peak48 µg/m³
Days over the guideline2 days
PM1070 µg/m³
Optical depth0.50
27 Jun2 Jul7 Jul12 Jul17 Jul
Good Fair Moderate Poor Very poor Extremely poor

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 · 248Every satellite heat detection, one by one, with time, satellite, power and coordinates.
⬇ Download CSV Times in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
Date and timeSatelliteFRP (MW)LatLon

Other fires nearby

All fires in Australia

Frequently asked questions

How long did the West Arnhem fire last?
GWIS (Copernicus) dates it between 29 June 2024 and 14 July 2024: 16 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 6,619 hectares (66.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered West Arnhem (6,658 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 29.4 °C, humidity dropped to 34 % and gusts hit 41 km/h. The fire danger index (FWI) reached 38, class Very high.
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 · Emergency number and official warnings

Satellite cross-check

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

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
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 000.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 248 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.
  • Probably a vegetation burn: not counted in the totals.

How we build fire pages: methodology

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.