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AU · Australia · –

Roper Gulf fire, 13 October 2022 Roper Gulf

Out · last detection 13 Nov 2022, 15:42 UTC

The fire started on 13 October 2022 in Roper Gulf, Australia, and satellites saw it burning for 31 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 140,454 hectares from heat detections, spread across a single municipality.

This page is probably a fire complex, not a single fire. GWIS merges into one perimeter the fires that touch over weeks, which in large burning seasons can join dozens of separate fires. The total area is reliable; the origin and dates refer to the whole complex.

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
140,454ha
GWIS perimeter (Copernicus)
Duration
31days
13 Oct 2022 – 12 Nov 2022
Municipalities hit
1
local government areas
Started on
13 Oct
2022
Heat detections
6,365
in a single hotspot: 219 MW
Danger at start
12
Moderate · FWI index
Average daily power
2.4GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 13 Oct12 Nov
13 Nov 2022

How it evolved, day by day

13 Oct 2022 · 244 MW · 30 14 Oct 2022 · 10 MW · 3 15 Oct 2022 · 2,869 MW · 184 16 Oct 2022 · 438 MW · 42 17 Oct 2022 · 79 MW · 16 19 Oct 2022 · 355 MW · 67 20 Oct 2022 · 195 MW · 12 21 Oct 2022 · 2,567 MW · 190 22 Oct 2022 · 813 MW · 75 23 Oct 2022 · 1,557 MW · 125 24 Oct 2022 · 3,110 MW · 191 25 Oct 2022 · 573 MW · 91 26 Oct 2022 · 533 MW · 41 27 Oct 2022 · 298 MW · 29 28 Oct 2022 · 958 MW · 86 29 Oct 2022 · 3,656 MW · 264 30 Oct 2022 · 3,767 MW · 255 31 Oct 2022 · 2,077 MW · 254 1 Nov 2022 · 466 MW · 49 2 Nov 2022 · 7,896 MW · 558 3 Nov 2022 · 11,923 MW · 941 4 Nov 2022 · 10,318 MW · 840 5 Nov 2022 · 10,532 MW · 918 6 Nov 2022 · 4,488 MW · 530 7 Nov 2022 · 629 MW · 109 8 Nov 2022 · 1,147 MW · 136 9 Nov 2022 · 1,064 MW · 103 10 Nov 2022 · 404 MW · 98 11 Nov 2022 · 433 MW · 56 12 Nov 2022 · 1,091 MW · 70 13 Nov 2022 · 3 MW · 2
13 Oct 21 Oct 28 Oct 3 Nov 11 Nov

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

The weather it burned in

41°high
54km/h · peak gust
7%lowest humidity

It had gone 7 days without rain (1 mm or more) when it started. Rain came after the fire: 1.1 mm on 13 Nov.

This area had burned before

74% of the perimeter overlaps earlier fires recorded since 2016: 3,420 ha in 2016, 29,459 ha in 2017, 22,248 ha in 2018, 47,891 ha in 2019, 23,119 ha in 2020, 18,935 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 104,377 ha that had burned before.

How big is it?

20 km
It burned the equivalent of 89% of the area of London (1,405 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. Roper Gulf where it started
    142,554 ha reached on 13 Oct
    0.8 %

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 2020
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2020, 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.

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)
13 Oct 33.1 °C 48 % 48 km/h 4.8 mm Moderate 12
14 Oct 34.8 °C 39 % 38 km/h 0.7 mm High 25
15 Oct 37.8 °C 28 % 43 km/h 0.1 mm Very high 41
16 Oct 36.3 °C 38 % 40 km/h 1.0 mm High 28
17 Oct 36.3 °C 33 % 45 km/h 0.0 mm High 33
18 Oct 36.5 °C 36 % 44 km/h 0.4 mm High 36
19 Oct 35.6 °C 40 % 41 km/h 0.9 mm High 28
20 Oct 37.2 °C 30 % 43 km/h 1.8 mm High 32
21 Oct 40.2 °C 13 % 44 km/h 0.0 mm Extreme 51
22 Oct 37.7 °C 22 % 46 km/h 0.0 mm Extreme 56
23 Oct 38.1 °C 26 % 45 km/h 0.0 mm Extreme 51
24 Oct 37.4 °C 35 % 54 km/h 0.0 mm Very high 48
25 Oct 37.5 °C 30 % 47 km/h 0.1 mm Very high 45
26 Oct 38.0 °C 29 % 51 km/h 0.0 mm Very high 46
27 Oct 39.3 °C 29 % 41 km/h 0.4 mm Very high 44
28 Oct 40.6 °C 18 % 35 km/h 0.0 mm Very high 49
29 Oct 39.4 °C 21 % 44 km/h 0.0 mm Extreme 57
30 Oct 40.0 °C 25 % 43 km/h 0.2 mm Extreme 53
31 Oct 39.8 °C 28 % 49 km/h 0.1 mm Extreme 56
1 Nov 39.3 °C 34 % 41 km/h 11.5 mm Low 11
2 Nov 34.7 °C 13 % 42 km/h 0.4 mm Very high 47
3 Nov 35.1 °C 12 % 52 km/h 0.0 mm Extreme 56
4 Nov 35.9 °C 10 % 48 km/h 0.0 mm Extreme 56
5 Nov 37.8 °C 7 % 48 km/h 0.0 mm Extreme 59
6 Nov 36.6 °C 13 % 46 km/h 0.0 mm Extreme 62
7 Nov 35.1 °C 30 % 38 km/h 0.8 mm High 34
8 Nov 35.6 °C 35 % 39 km/h 0.9 mm High 29
9 Nov 36.8 °C 36 % 44 km/h 0.9 mm High 32
10 Nov 35.0 °C 50 % 38 km/h 1.1 mm Moderate 21
11 Nov 36.1 °C 40 % 36 km/h 5.2 mm Low 11
12 Nov 34.6 °C 50 % 37 km/h 5.1 mm Low 6
13 Nov after 35.2 °C 45 % 34 km/h 1.1 mm Moderate 16

Before and after, from space

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

Before · 6 Oct 2022
After · 19 Nov 2022

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 November 2022 the air beside the fire reached 156 µg/m³ of PM2.5. That day averaged 55: 3.7 times the WHO daily guideline (15).

PM2.5 peak156 µg/m³
Days over the guideline14 days
PM10226 µg/m³
Optical depth1.96
17 Oct23 Oct29 Oct4 Nov10 Nov
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 · 6,365Every 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 Roper Gulf fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 13 October 2022 to 12 November 2022 (31 days). The perimeter dates it from 19 October 2022 to 11 November 2022.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 140,454 hectares (1,404.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Roper Gulf (142,554 ha, 0.8 %).
What was the weather like?
During the fire the temperature reached 40.6 °C, humidity dropped to 7 % and gusts hit 54 km/h. The fire danger index (FWI) reached 62, 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 · Emergency number and official warnings

Satellite cross-check

History of this page · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 11 November 2022 → 12 November 2022.
  2. Start date: 19 October 2022 → 13 October 2022.

RSS Changes to this page With cross-checks and a citable version

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; 2 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 19 October 2022 to 11 November 2022. 6,365 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 2020, 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.