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CF · Central African Republic · –

Djema fire, 24 December 2020 Djema

Out · last detection 23 Jan 2021, 23:17 UTC

The fire started on 24 December 2020 in Djema, Central African Republic, and satellites saw it burning for 30 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 18,513 hectares from heat detections, spread across a single municipality.

It is the 54th largest in Haut-Mbomou since 2016 (of 270 with a page). Number 19 in Central African Republic in 2020, of 101.

Compare with…
Burnt area
18,513ha
GWIS perimeter (Copernicus)
Duration
30days
24 Dec 2020 – 22 Jan 2021
Municipalities hit
1
sub-prefectures
Started on
24 Dec
2020
Heat detections
740
in a single hotspot: 80 MW
Danger at start
45
Very high · FWI index
Average daily power
143MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 24 Dec22 Jan
23 Jan 2021

How it evolved, day by day

24 Dec 2020 · 106 MW · 20 25 Dec 2020 · 5 MW · 3 26 Dec 2020 · 1 MW · 2 27 Dec 2020 · 8 MW · 4 29 Dec 2020 · 38 MW · 6 30 Dec 2020 · 42 MW · 10 31 Dec 2020 · 35 MW · 8 1 Jan 2021 · 122 MW · 14 2 Jan 2021 · 112 MW · 25 3 Jan 2021 · 118 MW · 9 4 Jan 2021 · 272 MW · 32 5 Jan 2021 · 237 MW · 32 6 Jan 2021 · 36 MW · 14 7 Jan 2021 · 77 MW · 22 8 Jan 2021 · 416 MW · 56 9 Jan 2021 · 252 MW · 62 10 Jan 2021 · 380 MW · 50 11 Jan 2021 · 295 MW · 96 12 Jan 2021 · 414 MW · 69 13 Jan 2021 · 124 MW · 22 14 Jan 2021 · 287 MW · 19 15 Jan 2021 · 119 MW · 12 16 Jan 2021 · 155 MW · 51 17 Jan 2021 · 283 MW · 36 18 Jan 2021 · 242 MW · 39 19 Jan 2021 · 73 MW · 11 20 Jan 2021 · 27 MW · 4 21 Jan 2021 · 5 MW · 7 22 Jan 2021 · 2 MW · 2 23 Jan 2021 · 11 MW · 3
24 Dec 31 Dec 8 Jan 18 Jan

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
43km/h · peak gust
8%lowest humidity

It had gone 50 days without rain (1 mm or more) when it started.

This area had burned before

88% of the perimeter overlaps earlier fires recorded since 2016: 13,743 ha in 2016, 5,047 ha in 2017, 4,372 ha in 2018, 1,541 ha in 2019, 1,302 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 16,300 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 12% of the area of London (185 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. Djema where it started
    18,698 ha reached on 24 Dec
    0.5 %

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)
24 Dec 36.6 °C 16 % 33 km/h 0.0 mm Very high 45
25 Dec 36.0 °C 19 % 20 km/h 0.0 mm Very high 39
26 Dec 36.1 °C 17 % 31 km/h 0.0 mm Very high 47
27 Dec 36.5 °C 17 % 34 km/h 0.0 mm Very high 48
28 Dec 36.3 °C 17 % 37 km/h 0.0 mm Very high 49
29 Dec 37.0 °C 13 % 41 km/h 0.0 mm Extreme 53
30 Dec 37.1 °C 15 % 34 km/h 0.0 mm Very high 48
31 Dec 37.2 °C 13 % 30 km/h 0.0 mm Very high 46
1 Jan 37.2 °C 13 % 26 km/h 0.0 mm Very high 48
2 Jan 35.6 °C 17 % 32 km/h 0.0 mm Very high 47
3 Jan 35.6 °C 18 % 21 km/h 0.0 mm Very high 43
4 Jan 36.6 °C 14 % 37 km/h 0.0 mm Extreme 51
5 Jan 36.5 °C 13 % 39 km/h 0.0 mm Extreme 52
6 Jan 37.1 °C 13 % 39 km/h 0.0 mm Extreme 53
7 Jan 36.5 °C 12 % 41 km/h 0.0 mm Extreme 55
8 Jan 35.9 °C 12 % 38 km/h 0.0 mm Extreme 54
9 Jan 34.1 °C 15 % 24 km/h 0.0 mm Very high 46
10 Jan 35.4 °C 10 % 34 km/h 0.0 mm Extreme 51
11 Jan 35.4 °C 10 % 32 km/h 0.0 mm Extreme 50
12 Jan 36.2 °C 11 % 34 km/h 0.0 mm Extreme 51
13 Jan 37.0 °C 12 % 30 km/h 0.0 mm Very high 50
14 Jan 36.8 °C 11 % 35 km/h 0.0 mm Extreme 52
15 Jan 35.9 °C 11 % 27 km/h 0.0 mm Very high 50
16 Jan 35.9 °C 12 % 27 km/h 0.0 mm Very high 50
17 Jan 37.3 °C 11 % 28 km/h 0.0 mm Extreme 54
18 Jan 37.3 °C 8 % 38 km/h 0.0 mm Extreme 57
19 Jan 36.2 °C 12 % 42 km/h 0.0 mm Extreme 62
20 Jan 35.5 °C 10 % 43 km/h 0.0 mm Extreme 63
21 Jan 35.8 °C 11 % 39 km/h 0.0 mm Extreme 60
22 Jan 36.2 °C 14 % 34 km/h 0.0 mm Extreme 57
23 Jan after 36.6 °C 15 % 26 km/h 0.0 mm Extreme 52
24 Jan after 37.5 °C 14 % 33 km/h 0.0 mm Extreme 53
25 Jan after 37.7 °C 15 % 40 km/h 0.0 mm Extreme 58
26 Jan after 36.5 °C 13 % 32 km/h 0.0 mm Extreme 56
27 Jan after 37.7 °C 13 % 32 km/h 0.0 mm Extreme 54
28 Jan after 38.1 °C 13 % 35 km/h 0.0 mm Extreme 56
29 Jan after 37.4 °C 8 % 36 km/h 0.0 mm Extreme 61
30 Jan after 36.9 °C 8 % 44 km/h 0.0 mm Extreme 63
31 Jan after 37.4 °C 8 % 38 km/h 0.0 mm Extreme 60
1 Feb after 38.1 °C 9 % 34 km/h 0.0 mm Extreme 56

Its twins: fires that started in the same weather

It started with an FWI of 44.9, a minimum humidity of 16% and 50 days without rain. Fires in the area that started in weather like this since 2016: 44.

FWI at the start 44.9
Minimum humidity 16 %
Days without rain 50
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Djema fire, December 2022
8,644 ha 15 days FWI 44.1 Min. humidity 16 % 90 km away, in 2022

First rain (1 mm or more) after it ended: none in the following ten days.

What happened to them

16 days
median duration
9,080 ha
median area
48 %
went past 10,000 ha
1.1 mm
rain at the end (median; 1 of 44 had it)

It was 2.0 times larger than the median of its twins and lasted 30 days, against 16 days.

Only 10 of its 44 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 43 of 44, 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 1.1 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
43km/h · max. gust

It was considered over on 22 Jan, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 1 of 44, with a median of 1.1 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.

How we calculate it

Before and after, from space

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

Before · 17 Dec 2020
After · 29 Jan 2021

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 · 740Every 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 Central African Republic

Frequently asked questions

How long did the Djema fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 24 December 2020 to 22 January 2021 (30 days). The perimeter dates it from 31 December 2020 to 18 January 2021.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 18,513 hectares (185.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Djema (18,698 ha, 0.5 %).
What was the weather like?
During the fire the temperature reached 37.3 °C, humidity dropped to 8 % and gusts hit 43 km/h. The fire danger index (FWI) reached 63, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Central African Republic (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: 44. Their median duration was 16 days and their median area 9,080 ha; 48 % went past 10,000 ha. Only 10 of its 44 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 43 of 44, 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 1.1 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.

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.

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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 31 December 2020 to 18 January 2021. 740 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.

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 ADM3 (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.