Burned area
satellite only10,592ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 20 Oct 2022 – 29 Oct 2022
+− cross-check
No official record is matched to this page to compare it with.
AU · Australia · –
Roper Gulf fire, 20 October 2022 Roper Gulf
Out · last detection 29 Oct 2022, 04:15 UTC
The fire started on 20 October 2022 in Roper Gulf, Australia, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 10,592 hectares from heat detections, spread across a single municipality.
It is the 1094th largest in Northern Territory since 2016 (of 2853 with a page). Number 179 in Australia in 2022, of 566.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-24matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only10days
20 Oct 2022 to 29 Oct 2022: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 29 Oct 2022, 04:15 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only20 Oct 2022
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 20 Oct 2022
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only368
VIIRS detections at 375 m. Most intense hotspot: 295 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 20 Oct 2022 – 29 Oct 2022
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only7,093MW
Total radiative power on 22 October 2022; hotspots that day: 145.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 22 Oct 2022
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model24.9FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 0.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 20 Oct 2022, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model41.0°C · 10% RH
High of 41.0 °C and minimum humidity of 10% on 22 October 2022; gusts of 40 km/h on 24 October 2022.
- Source
- weather model at the fire’s grid cell
- Date
- 20 Oct 2022 – 29 Oct 2022
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed GHSLPopulation and built-up area computed
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
What was saved on 24 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 10,592 ha
- Dates
- 20 Oct 2022 – 29 Oct 2022
- Name
- Roper Gulf
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/roper-gulf-2022-10-7?v=2026-10-24A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire roper-gulf-2022-10-7.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022-10-20 | 2 | 21 | 37.5 | 24.4 | 30 | 13.9 | 29.2 | 0.2 | 24.9 | alto | 1 |
| 2022-10-21 | 175 | 4,571 | 39.8 | 23.6 | 14 | 11 | 26.6 | 0 | 37.1 | alto | 1 |
| 2022-10-22 | 145 | 7,093 | 41 | 19.5 | 10 | 10.6 | 27 | 0 | 42.1 | muy_alto | 1 |
| 2022-10-23 | 23 | 442 | 40.7 | 22.9 | 17 | 16.3 | 34.9 | 0 | 49 | muy_alto | 1 |
| 2022-10-24 | 0 | 0 | 37.8 | 27.5 | 31 | 18.5 | 40 | 0.1 | 40.6 | muy_alto | 1 |
| 2022-10-25 | 7 | 34 | 39.5 | 26.9 | 25 | 16.3 | 35.6 | 0 | 39.3 | muy_alto | 1 |
| 2022-10-26 | 8 | 39 | 37.9 | 28.1 | 33 | 14.3 | 33.8 | 1.5 | 25.9 | alto | 1 |
| 2022-10-27 | 5 | 53 | 36.8 | 27.2 | 41 | 15.6 | 30.2 | 1.4 | 22.2 | alto | 1 |
| 2022-10-28 | 0 | 0 | 37.7 | 27 | 24 | 11.5 | 26.6 | 0.1 | 33.1 | alto | 1 |
| 2022-10-29 | 3 | 17 | 38.4 | 26.8 | 28 | 18.7 | 36 | 0 | 40 | muy_alto | 1 |
| 2022-10-30 | 0 | 0 | 40 | 27.2 | 24 | 12.6 | 29.2 | 0 | 37.3 | alto | 0 |
| 2022-10-31 | 0 | 0 | 39.8 | 27.9 | 23 | 14.3 | 28.4 | 0 | 39.9 | muy_alto | 0 |
| 2022-11-01 | 0 | 0 | 40.5 | 27.6 | 17 | 17.3 | 34.6 | 0 | 48.5 | muy_alto | 0 |
| 2022-11-02 | 0 | 0 | 40.7 | 23.1 | 20 | 25.6 | 47.9 | 0 | 59.3 | extremo | 0 |
| 2022-11-03 | 0 | 0 | 37.3 | 26.7 | 31 | 19.3 | 44.3 | 0.9 | 36.7 | alto | 0 |
| 2022-11-04 | 0 | 0 | 37.1 | 23 | 12 | 17.2 | 40 | 0 | 50.7 | extremo | 0 |
| 2022-11-05 | 0 | 0 | 38.4 | 20.5 | 14 | 11.8 | 32 | 0 | 45.2 | muy_alto | 0 |
| 2022-11-06 | 0 | 0 | 38.8 | 23 | 17 | 10.7 | 29.5 | 0 | 44.4 | muy_alto | 0 |
| 2022-11-07 | 0 | 0 | 39 | 23.8 | 19 | 13.1 | 31.7 | 0 | 47.4 | muy_alto | 0 |
| 2022-11-08 | 0 | 0 | 40.7 | 24.1 | 14 | 14.8 | 29.9 | 0 | 50.6 | extremo | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 10,592ha
- GWIS perimeter (Copernicus)
- Duration
- 10days
- 20 Oct 2022 – 29 Oct 2022
- Municipalities hit
- 1
- local government areas
- Started on
- 20 Oct
- 2022
- Heat detections
- 368
- in a single hotspot: 295 MW
- Danger at start
- 25
- High · FWI index
- Average daily power
- 1.5GW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
20 Oct29 Oct
29 Oct 2022
How it evolved, day by day
20 Oct
22 Oct
25 Oct
27 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
41°high
40km/h · peak gust
10%lowest humidity
It had gone 0 days without rain (1 mm or more) when it started.
This area had burned before
12% of the perimeter overlaps earlier fires recorded since 2016: 77 ha in 2016, 48 ha in 2017, 172 ha in 2018, 419 ha in 2019, 683 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 1,289 ha that had burned before.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Roper Gulf where it started10,627 ha reached on 20 Oct0.1 %
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 2020Built-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) |
|---|---|---|---|---|---|
| 20 Oct | 37.5 °C | 30 % | 29 km/h | 0.2 mm | High 25 |
| 21 Oct | 39.8 °C | 14 % | 27 km/h | 0.0 mm | High 37 |
| 22 Oct | 41.0 °C | 10 % | 27 km/h | 0.0 mm | Very high 42 |
| 23 Oct | 40.7 °C | 17 % | 35 km/h | 0.0 mm | Very high 49 |
| 24 Oct | 37.8 °C | 31 % | 40 km/h | 0.1 mm | Very high 41 |
| 25 Oct | 39.5 °C | 25 % | 36 km/h | 0.0 mm | Very high 39 |
| 26 Oct | 37.9 °C | 33 % | 34 km/h | 1.5 mm | High 26 |
| 27 Oct | 36.8 °C | 41 % | 30 km/h | 1.4 mm | High 22 |
| 28 Oct | 37.7 °C | 24 % | 27 km/h | 0.1 mm | High 33 |
| 29 Oct | 38.4 °C | 28 % | 36 km/h | 0.0 mm | Very high 40 |
| 30 Oct after | 40.0 °C | 24 % | 29 km/h | 0.0 mm | High 37 |
| 31 Oct after | 39.8 °C | 23 % | 28 km/h | 0.0 mm | Very high 40 |
| 1 Nov after | 40.5 °C | 17 % | 35 km/h | 0.0 mm | Very high 48 |
| 2 Nov after | 40.7 °C | 20 % | 48 km/h | 0.0 mm | Extreme 59 |
| 3 Nov after | 37.3 °C | 31 % | 44 km/h | 0.9 mm | High 37 |
| 4 Nov after | 37.1 °C | 12 % | 40 km/h | 0.0 mm | Extreme 51 |
| 5 Nov after | 38.4 °C | 14 % | 32 km/h | 0.0 mm | Very high 45 |
| 6 Nov after | 38.8 °C | 17 % | 30 km/h | 0.0 mm | Very high 44 |
| 7 Nov after | 39.0 °C | 19 % | 32 km/h | 0.0 mm | Very high 47 |
| 8 Nov after | 40.7 °C | 14 % | 30 km/h | 0.0 mm | Extreme 51 |
Its twins: fires that started in the same weather
It started with an FWI of 24.9, a minimum humidity of 30% and rain the day before. Fires in the area that started in weather like this since 2016: 20.
FWI at the start
24.9
Minimum humidity
30 %
Days without rain
0
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Roper Gulf fire, 20 October 2022
10,592 ha
10 days
FWI 24.9
Min. humidity 30 %
Roper Gulf fire, September 2024
6,002 ha
2 days
FWI 25.4
Min. humidity 30 %
168 km away, in 2024
First rain (1 mm or more) after it ended: none in the following ten days.
Roper Gulf fire, May 2019
7,329 ha
10 days
FWI 24.2
Min. humidity 29 %
111 km away, in 2019
First rain (1 mm or more) after it ended: 1.3 mm on 19 May.
Roper Gulf fire, October 2021
5,839 ha
13 days
FWI 24.8
Min. humidity 31 %
96 km away, in 2021
First rain (1 mm or more) after it ended: 2.4 mm on 7 Nov.
Victoria Daly fire, November 2017
6,497 ha
4 days
FWI 28.1
Min. humidity 30 %
160 km away, in 2017
First rain (1 mm or more) after it ended: 6.0 mm on 12 Nov.
Victoria Daly fire, November 2024
18,508 ha
6 days
FWI 22.7
Min. humidity 29 %
238 km away, in 2024
First rain (1 mm or more) after it ended: 2.1 mm on 12 Nov.
What happened to them
- 10 days
- median duration
- 8,006 ha
- median area
- 30 %
- went past 10,000 ha
- 2.1 mm
- rain at the end (median; 13 of 20 had it)
It burned an area similar to its twins (10,592 ha against a median of 8,006 ha) and lasted 10 days, against 10 days.
In 7 of 20, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.1 mm.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
How it ended
—first rain
—no rain in ten days
40km/h · max. gust
It was considered over on 29 Oct, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 13 of 20, with a median of 2.1 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
How a twin is chosen
- Same area: fires that have already ended, less than 250 km from this one, since 2016.
- Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
- Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
- Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
- They are sorted by similarity, and the outlines of the first five are drawn.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 13 Oct 2022
After · 5 Nov 2022
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 22 October 2022 the air beside the fire reached 230 µg/m³ of PM2.5. That day averaged 91: 6.0 times the WHO daily guideline (15).
PM2.5 peak230 µg/m³
Days over the guideline6 days
PM10328 µg/m³
Optical depth2.29
WHO 15
18 Oct21 Oct24 Oct27 Oct30 Oct
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 · 368Every 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
Frequently asked questions
- How long did the Roper Gulf fire last?
- GWIS (Copernicus) dates it between 20 October 2022 and 29 October 2022: 10 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 10,592 hectares (105.9 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Roper Gulf (10,627 ha, 0.1 %).
- What was the weather like?
- During the fire the temperature reached 41.0 °C, humidity dropped to 10 % and gusts hit 40 km/h. The fire danger index (FWI) reached 49, 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.
- How did the fires that started in similar weather in this area end?
- Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 20. Their median duration was 10 days and their median area 8,006 ha; 30 % went past 10,000 ha. In 7 of 20, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.1 mm.
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.
No changes since 24 October 2026.
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
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. 368 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.
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.