How long did the Barkly fire last?

GWIS (Copernicus) dates it between 26 September 2024 and 3 October 2024: 8 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 29,366 hectares (293.7 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Barkly (29,203 ha, 0.1 %).

What was the weather like?

During the fire the temperature reached 37.0 °C, humidity dropped to 10 % and gusts hit 51 km/h. The fire danger index (FWI) reached 72, class Very 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.

AU · Australia · 2024-09-26 → 2024-10-03

Barkly fire, 26 September 2024 Barkly

Out · last detection 3 Oct 2024, 05:34 UTC

The fire started on 26 September 2024 in Barkly, Australia, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 29,366 hectares from heat detections, spread across a single municipality.

It is the 380th largest in Northern Territory since 2016 (of 3508 with a page). Number 54 in Australia in 2024, of 636.

Compare with…

Suggestions: Barkly · 2017 Barkly · 2026 Barkly · 2017 Barkly · 2023

Burnt area: 29,366ha; GWIS perimeter (Copernicus)
Duration: 8days; 26 Sept 2024 – 3 Oct 2024
Municipalities hit: 1; local government areas
Started on: 26 Sept; 2024
Heat detections: 798; in a single hotspot: 157 MW
Danger at start: 32; High · FWI index
Average daily power: 1.8GW; detected power per day, on average

HOTSPOTS BY DAY 26 Sept3 Oct

Play back 3 Oct 2024

How it evolved, day by day

28 Sept 29 Sept 30 Sept 1 Oct 2 Oct 3 Oct

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

The weather it burned in

37°high

51km/h · peak gust

10%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 1.0 mm on 13 Oct.

This area had burned before

15% of the perimeter overlaps earlier fires recorded since 2016: 331 ha in 2017, 2,947 ha in 2018, 1,381 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 4,404 ha that had burned before.

112 ha Barkly fire, December 2017 6,371 ha in total; the hectares shown are those it shares with this fire

How big is it?

It burned the equivalent of 19% of the area of London (294 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

Barkly where it started

29,203 ha reached on 28 Sept

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)

Day	High	Min. humidity	Peak gust	Rain	Danger (FWI)
26 Sept	31.8 °C	39 %	32 km/h	0.1 mm	High 32
27 Sept	34.1 °C	27 %	44 km/h	0.0 mm	Very high 47
28 Sept	35.3 °C	16 %	33 km/h	0.0 mm	Very high 46
29 Sept	36.8 °C	12 %	38 km/h	0.0 mm	Extreme 56
30 Sept	36.1 °C	10 %	51 km/h	0.0 mm	Very extreme 72
1 Oct	36.2 °C	16 %	50 km/h	0.0 mm	Extreme 69
2 Oct	36.2 °C	15 %	44 km/h	0.0 mm	Extreme 63
3 Oct	37.0 °C	18 %	25 km/h	0.0 mm	Extreme 54
4 Oct after	37.8 °C	18 %	32 km/h	0.0 mm	Extreme 58
5 Oct after	37.5 °C	21 %	32 km/h	0.0 mm	Extreme 57
6 Oct after	37.1 °C	23 %	32 km/h	0.0 mm	Extreme 53
7 Oct after	36.7 °C	23 %	37 km/h	0.0 mm	Extreme 52
8 Oct after	36.5 °C	23 %	35 km/h	0.0 mm	Extreme 51
9 Oct after	38.5 °C	11 %	35 km/h	0.0 mm	Extreme 59
10 Oct after	37.5 °C	9 %	41 km/h	0.0 mm	Extreme 64
11 Oct after	38.6 °C	5 %	41 km/h	0.0 mm	Very extreme 72
12 Oct after	37.5 °C	16 %	37 km/h	0.1 mm	Extreme 64
13 Oct after	35.0 °C	31 %	45 km/h	1.0 mm	Very high 44

Before and after, from space

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

↔

Before · 19 Sept 2024

After · 10 Oct 2024

Before After

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 2 October 2024 the air beside the fire reached 21 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak21 µg/m³

Days over the guideline0 days

PM1031 µg/m³

Optical depth0.43

WHO 15

24252627282930123456

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 · 798Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

All fires in Australia ›

Frequently asked questions

How long did the Barkly fire last?: GWIS (Copernicus) dates it between 26 September 2024 and 3 October 2024: 8 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 29,366 hectares (293.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Barkly (29,203 ha, 0.1 %).
What was the weather like?: During the fire the temperature reached 37.0 °C, humidity dropped to 10 % and gusts hit 51 km/h. The fire danger index (FWI) reached 72, class Very 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 · Emergency number and official warnings ›

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

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

No changes since 24 October 2026.

RSS Changes to this page

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.

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What really happened?

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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; 2 polygons grouped in this page.
Dates from the perimeter: the VIIRS detections inside it did not change them. 798 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.

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.

Where it burned