Burned area
satellite only7,331ha
Union of 2 GWIS (Copernicus) perimeters: overlapping areas count once.
- Source
- GWIS (Copernicus)
- Date
- 22 Nov 2021 – 7 Dec 2021
+− cross-check
No official record is matched to this page to compare it with.
SD · Sudan · –
Abyei PCA area fire, 22 November 2021 Abyei PCA area
Out · last detection 7 Dec 2021, 11:20 UTC
The fire started on 22 November 2021 in Abyei PCA area, Sudan, and satellites saw it burning for 16 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 7,331 hectares from heat detections, spread across a single municipality.
It is the 7th largest in Abyei PCA since 2016 (of 57 with a page). Number 11 in Sudan in 2021, of 149.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-27matches 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 only16days
22 Nov 2021 to 7 Dec 2021: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 7 Dec 2021, 11:20 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 only22 Nov 2021
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 22 Nov 2021
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only163
VIIRS detections at 375 m. Most intense hotspot: 59 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 22 Nov 2021 – 7 Dec 2021
+− 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 only788MW
Total radiative power on 4 December 2021; hotspots that day: 37.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 4 Dec 2021
+− 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
model55.9FWI · extreme
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 38.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 22 Nov 2021, 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
model39.7°C · 12% RH
High of 39.7 °C and minimum humidity of 12% on 5 December 2021; gusts of 37 km/h on 22 November 2021.
- Source
- weather model at the fire’s grid cell
- Date
- 22 Nov 2021 – 7 Dec 2021
- 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 weatherWeather and FWI computed from the ERA5 reanalysis
-
logStart date: 25 November 2021 → 22 November 2021.
-
· reconstructed GHSLPopulation and built-up area computed
What was saved on 27 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
- 7,406 ha
- Dates
- 22 Nov 2021 – 7 Dec 2021
- Name
- Abyei PCA area
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/abyei-pca-area-2021-11-9?v=2026-10-27A 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 abyei-pca-area-2021-11-9.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-11-22 | 3 | 4 | 37 | 24 | 10 | 17.8 | 36.7 | 0 | 55.9 | extremo | 1 |
| 2021-11-23 | 0 | 0 | 37.1 | 23.6 | 10 | 17.2 | 35.6 | 0 | 55.8 | extremo | 1 |
| 2021-11-24 | 0 | 0 | 37.5 | 22.9 | 12 | 17.3 | 34.9 | 0 | 56.5 | extremo | 1 |
| 2021-11-25 | 1 | 6 | 37.9 | 23.1 | 11 | 17.1 | 35.6 | 0 | 56.9 | extremo | 1 |
| 2021-11-26 | 11 | 342 | 38.2 | 23.2 | 10 | 16.9 | 34.6 | 0 | 57.2 | extremo | 1 |
| 2021-11-27 | 23 | 114 | 38.4 | 23.8 | 12 | 15.5 | 31.7 | 0 | 55.9 | extremo | 1 |
| 2021-11-28 | 23 | 91 | 39 | 26 | 16 | 15.5 | 34.2 | 0 | 55.6 | extremo | 1 |
| 2021-11-29 | 21 | 149 | 38.5 | 27 | 18 | 12.4 | 30.2 | 0 | 50.2 | extremo | 1 |
| 2021-11-30 | 10 | 61 | 38.2 | 27.2 | 19 | 8.3 | 22 | 0 | 44.8 | muy_alto | 1 |
| 2021-12-01 | 7 | 24 | 39 | 25.9 | 18 | 9.7 | 23.4 | 0 | 46.6 | muy_alto | 1 |
| 2021-12-02 | 11 | 47 | 38.8 | 27.5 | 15 | 15.1 | 32.8 | 0 | 53.2 | extremo | 1 |
| 2021-12-03 | 2 | 4 | 38.8 | 25.9 | 13 | 14.3 | 31.7 | 0 | 52.6 | extremo | 1 |
| 2021-12-04 | 37 | 788 | 39.1 | 25.5 | 14 | 14.8 | 32.8 | 0 | 53.6 | extremo | 1 |
| 2021-12-05 | 10 | 97 | 39.7 | 25.3 | 12 | 16.5 | 36.4 | 0 | 56.1 | extremo | 1 |
| 2021-12-06 | 2 | 8 | 37.4 | 25.4 | 12 | 15.4 | 33.1 | 0 | 55 | extremo | 1 |
| 2021-12-07 | 2 | 12 | 39 | 24.5 | 12 | 12.3 | 28.1 | 0 | 51.6 | extremo | 1 |
| 2021-12-08 | 0 | 0 | 39.2 | 25 | 9 | 19.3 | 39.2 | 0 | 62.5 | extremo | 0 |
| 2021-12-09 | 0 | 0 | 37.4 | 24.1 | 12 | 19.1 | 38.2 | 0 | 62.6 | extremo | 0 |
| 2021-12-10 | 0 | 0 | 37.7 | 24 | 13 | 15.4 | 32 | 0 | 57.9 | extremo | 0 |
| 2021-12-11 | 0 | 0 | 38.7 | 24.5 | 14 | 16 | 33.8 | 0 | 59 | extremo | 0 |
| 2021-12-12 | 0 | 0 | 38.8 | 23.9 | 12 | 11.9 | 29.2 | 0 | 54.1 | extremo | 0 |
| 2021-12-13 | 0 | 0 | 38.5 | 23 | 11 | 11 | 28.1 | 0 | 53.3 | extremo | 0 |
| 2021-12-14 | 0 | 0 | 39 | 23.5 | 11 | 12.5 | 29.2 | 0 | 55.4 | extremo | 0 |
| 2021-12-15 | 0 | 0 | 38.5 | 25 | 12 | 19 | 37.8 | 0 | 64.5 | extremo | 0 |
| 2021-12-16 | 0 | 0 | 37.3 | 24.8 | 11 | 19.9 | 39.2 | 0 | 66.1 | extremo | 0 |
| 2021-12-17 | 0 | 0 | 35.8 | 23 | 11 | 19 | 37.4 | 0 | 64.7 | 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
- 7,331ha
- GWIS perimeter (Copernicus)
- Duration
- 16days
- 22 Nov 2021 – 7 Dec 2021
- Municipalities hit
- 1
- localities
- Started on
- 22 Nov
- 2021
- Heat detections
- 163
- in a single hotspot: 59 MW
- Danger at start
- 56
- Extreme · FWI index
- Average daily power
- 125MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
22 Nov7 Dec
7 Dec 2021
How it evolved, day by day
22 Nov
27 Nov
30 Nov
4 Dec
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
40°high
37km/h · peak gust
10%lowest humidity
It had gone 38 days without rain (1 mm or more) when it started.
This area had burned before
51% of the perimeter overlaps earlier fires recorded since 2016: 1,160 ha in 2016, 1,408 ha in 2017, 300 ha in 2018, 2,428 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 3,703 ha that had burned before.
- 1,479 ha Abyei PCA area fire, January 2020 2,000 ha in total; the hectares shown are those it shares with this fire
- 1,408 ha Abyei PCA area fire, November 2017 30,178 ha in total; the hectares shown are those it shares with this fire
- 948 ha Abyei PCA area fire, January 2020 2,021 ha in total; the hectares shown are those it shares with this fire
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
-
Abyei PCA area where it started7,446 ha reached on 22 Nov0.7 %
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)
Started with Very dry air: 55 % of the area in Sudan
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 22 Nov | 37.0 °C | 10 % | 37 km/h | 0.0 mm | Extreme 56 |
| 23 Nov | 37.1 °C | 10 % | 36 km/h | 0.0 mm | Extreme 56 |
| 24 Nov | 37.5 °C | 12 % | 35 km/h | 0.0 mm | Extreme 56 |
| 25 Nov | 37.9 °C | 11 % | 36 km/h | 0.0 mm | Extreme 57 |
| 26 Nov | 38.2 °C | 10 % | 35 km/h | 0.0 mm | Extreme 57 |
| 27 Nov | 38.4 °C | 12 % | 32 km/h | 0.0 mm | Extreme 56 |
| 28 Nov | 39.0 °C | 16 % | 34 km/h | 0.0 mm | Extreme 56 |
| 29 Nov | 38.5 °C | 18 % | 30 km/h | 0.0 mm | Extreme 50 |
| 30 Nov | 38.2 °C | 19 % | 22 km/h | 0.0 mm | Very high 45 |
| 1 Dec | 39.0 °C | 18 % | 23 km/h | 0.0 mm | Very high 47 |
| 2 Dec | 38.8 °C | 15 % | 33 km/h | 0.0 mm | Extreme 53 |
| 3 Dec | 38.8 °C | 13 % | 32 km/h | 0.0 mm | Extreme 53 |
| 4 Dec | 39.1 °C | 14 % | 33 km/h | 0.0 mm | Extreme 54 |
| 5 Dec | 39.7 °C | 12 % | 36 km/h | 0.0 mm | Extreme 56 |
| 6 Dec | 37.4 °C | 12 % | 33 km/h | 0.0 mm | Extreme 55 |
| 7 Dec | 39.0 °C | 12 % | 28 km/h | 0.0 mm | Extreme 52 |
| 8 Dec after | 39.2 °C | 9 % | 39 km/h | 0.0 mm | Extreme 62 |
| 9 Dec after | 37.4 °C | 12 % | 38 km/h | 0.0 mm | Extreme 63 |
| 10 Dec after | 37.7 °C | 13 % | 32 km/h | 0.0 mm | Extreme 58 |
| 11 Dec after | 38.7 °C | 14 % | 34 km/h | 0.0 mm | Extreme 59 |
| 12 Dec after | 38.8 °C | 12 % | 29 km/h | 0.0 mm | Extreme 54 |
| 13 Dec after | 38.5 °C | 11 % | 28 km/h | 0.0 mm | Extreme 53 |
| 14 Dec after | 39.0 °C | 11 % | 29 km/h | 0.0 mm | Extreme 55 |
| 15 Dec after | 38.5 °C | 12 % | 38 km/h | 0.0 mm | Extreme 64 |
| 16 Dec after | 37.3 °C | 11 % | 39 km/h | 0.0 mm | Extreme 66 |
| 17 Dec after | 35.8 °C | 11 % | 37 km/h | 0.0 mm | Extreme 65 |
Its twins: fires that started in the same weather
It started with an FWI of 55.9, a minimum humidity of 10% and 38 days without rain. Fires in the area that started in weather like this since 2016: 36.
FWI at the start
55.9
Minimum humidity
10 %
Days without rain
38
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Abyei PCA area fire, 22 November 2021
7,331 ha
16 days
FWI 55.9
Min. humidity 10 %
Abyei PCA area fire, November 2020
2,775 ha
5 days
FWI 57.6
Min. humidity 11 %
55 km away, in 2020
First rain (1 mm or more) after it ended: none in the following ten days.
Abyei PCA area fire, December 2017
2,105 ha
11 days
FWI 57.0
Min. humidity 10 %
65 km away, in 2017
First rain (1 mm or more) after it ended: none in the following ten days.
Abyei PCA area fire, December 2017
6,954 ha
6 days
FWI 56.5
Min. humidity 11 %
33 km away, in 2017
First rain (1 mm or more) after it ended: none in the following ten days.
Abyei PCA area fire, December 2017
2,254 ha
4 days
FWI 57.7
Min. humidity 11 %
24 km away, in 2017
First rain (1 mm or more) after it ended: none in the following ten days.
Keilak fire, December 2022
3,699 ha
2 days
FWI 55.9
Min. humidity 12 %
178 km away, in 2022
First rain (1 mm or more) after it ended: none in the following ten days.
What happened to them
- 7 days
- median duration
- 3,852 ha
- median area
- 6 %
- went past 10,000 ha
- —
- rain at the end (median; 0 of 36 had it)
It was 1.9 times larger than the median of its twins and lasted 16 days, against 7 days.
Only 4 of its 36 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In none of them did 1 mm fall in the ten days after the end: they all went out without rain.
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
37km/h · max. gust
It was considered over on 7 Dec, and not even 1 mm fell in the following ten days: it went out without rain. None of its 36 twins had rain when they ended.
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 · 15 Nov 2021
After · 14 Dec 2021
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.
Detections table · 163Every 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
- 30,178 haAbyei PCA area28 November 2017 · 31 days · 11 km away
- 10,029 haAbyei PCA area4 November 2017 · 13 days · 20 km away
- 11,585 haAbyei PCA area10 December 2021 · 6 days · 22 km away
- 7,450 haAbyei PCA area19 November 2017 · 8 days · 25 km away
- 6,954 haAbyei PCA area2 December 2017 · 6 days · 33 km away
Frequently asked questions
- How long did the Abyei PCA area fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 22 November 2021 to 7 December 2021 (16 days). The perimeter dates it from 25 November 2021 to 7 December 2021.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 7,331 hectares (73.3 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Abyei PCA area (7,446 ha, 0.7 %).
- What was the weather like?
- During the fire the temperature reached 39.7 °C, humidity dropped to 10 % and gusts hit 37 km/h. The fire danger index (FWI) reached 57, class Extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Sudan (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: 36. Their median duration was 7 days and their median area 3,852 ha; 6 % went past 10,000 ha. Only 4 of its 36 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In none of them did 1 mm fall in the ten days after the end: they all went out without rain.
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.
Satellite cross-check
History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Start date: 25 November 2021 → 22 November 2021.
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; 2 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 25 November 2021 to 7 December 2021. 163 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 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.