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TD · Chad · –

Bahr-Azoum fire, 15 January 2016 Bahr-Azoum

Out · last detection 26 Jan 2016, 12:24 UTC

The fire started on 15 January 2016 in Bahr-Azoum, Chad, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 12,480 hectares from heat detections, spread across a single municipality.

It is the 4th largest in Salamat since 2016 (of 450 with a page). Number 2 in Chad in 2016, of 220.

Burnt area
12,480ha
GWIS perimeter (Copernicus)
Duration
11days
15 Jan 2016 – 25 Jan 2016
Municipalities hit
1
departments
Started on
15 Jan
2016
Heat detections
354
in a single hotspot: 31 MW
Danger at start
57
Extreme · FWI index
Average daily power
147MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 15 Jan25 Jan
26 Jan 2016

How it evolved, day by day

15 Jan 2016 · 2 MW · 2 16 Jan 2016 · 62 MW · 7 17 Jan 2016 · 245 MW · 63 18 Jan 2016 · 139 MW · 28 19 Jan 2016 · 813 MW · 111 20 Jan 2016 · 164 MW · 59 21 Jan 2016 · 143 MW · 21 22 Jan 2016 · 88 MW · 31 23 Jan 2016 · 65 MW · 19 24 Jan 2016 · 4 MW · 5 25 Jan 2016 · 32 MW · 7 26 Jan 2016 · 3 MW · 1
15 Jan 19 Jan 24 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

36°high
33km/h · peak gust
8%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 7.9% of the area of London (125 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. Bahr-Azoum where it started
    12,589 ha reached on 15 Jan
    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 2015
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2015, 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: 54 % of the area in Chad 60 days without rain: 44 % of the area in Chad

Day High Min. humidity Peak gust Rain Danger (FWI)
15 Jan 34.3 °C 11 % 31 km/h 0.0 mm Extreme 57
16 Jan 35.3 °C 13 % 30 km/h 0.0 mm Extreme 54
17 Jan 34.7 °C 11 % 24 km/h 0.0 mm Extreme 55
18 Jan 34.2 °C 11 % 31 km/h 0.0 mm Extreme 57
19 Jan 35.0 °C 11 % 29 km/h 0.0 mm Extreme 54
20 Jan 34.9 °C 10 % 33 km/h 0.0 mm Extreme 58
21 Jan 34.5 °C 10 % 21 km/h 0.0 mm Extreme 53
22 Jan 35.4 °C 9 % 24 km/h 0.0 mm Extreme 56
23 Jan 36.0 °C 8 % 30 km/h 0.0 mm Extreme 62
24 Jan 33.1 °C 10 % 31 km/h 0.0 mm Extreme 60
25 Jan 30.9 °C 12 % 30 km/h 0.0 mm Extreme 56
26 Jan after 30.3 °C 14 % 32 km/h 0.0 mm Extreme 54
27 Jan after 29.4 °C 13 % 32 km/h 0.0 mm Extreme 52
28 Jan after 29.7 °C 12 % 33 km/h 0.0 mm Extreme 53
29 Jan after 29.0 °C 13 % 35 km/h 0.0 mm Extreme 55
30 Jan after 29.9 °C 9 % 31 km/h 0.0 mm Extreme 51
31 Jan after 31.5 °C 10 % 31 km/h 0.0 mm Extreme 51
1 Feb after 33.7 °C 10 % 30 km/h 0.0 mm Extreme 51
2 Feb after 34.7 °C 10 % 32 km/h 0.0 mm Extreme 53
3 Feb after 35.7 °C 9 % 35 km/h 0.0 mm Extreme 56
4 Feb after 36.7 °C 9 % 28 km/h 0.0 mm Extreme 58

Its twins: fires that started in the same weather

It started with an FWI of 57.0, a minimum humidity of 11% and more than two months without rain. Fires in the area that started in weather like this since 2016: 62.

FWI at the start 57.0
Minimum humidity 11 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Bahr-Azoum fire, January 2022
6,074 ha 4 days FWI 57.0 Min. humidity 11 % 39 km away, in 2022

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

What happened to them

5 days
median duration
3,104 ha
median area
100 %
went past 1,000 ha
—
rain at the end (median; 0 of 62 had it)

It was 4.0 times larger than the median of its twins and lasted 11 days, against 5 days.

Only 2 of its 62 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
33km/h · max. gust

It was considered over on 25 Jan, and not even 1 mm fell in the following ten days: it went out without rain. None of its 62 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.

How we calculate it

Before and after, from space

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

Before · 8 Jan 2016
After · 1 Feb 2016

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 · 354Every 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 Chad

Frequently asked questions

How long did the Bahr-Azoum fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 15 January 2016 to 25 January 2016 (11 days). The perimeter dates it from 15 January 2016 to 23 January 2016.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 12,480 hectares (124.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Bahr-Azoum (12,589 ha, 0.5 %).
What was the weather like?
During the fire the temperature reached 36.0 °C, humidity dropped to 8 % and gusts hit 33 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 Chad (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: 62. Their median duration was 5 days and their median area 3,104 ha; 100 % went past 1,000 ha. Only 2 of its 62 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.
  1. Last day with fire: 23 January 2016 → 25 January 2016.

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
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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 15 January 2016 to 23 January 2016. 354 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 2015, 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 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.