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Déou fire, 25 November 2023 Déou, Arbinda, Koutougou

Out · last detection 27 Nov 2023, 01:54 UTC

The fire started on 25 November 2023 in Déou, Burkina Faso, and satellites saw it burning for 3 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,561 hectares from heat detections, spread across 3 municipalities.

It is the 34th largest in Liptako since 2016 (of 222 with a page). Number 8 in Burkina Faso in 2023, of 261.

The power measured by the satellite is low (14.5 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…
Burnt area
4,561ha
GWIS perimeter (Copernicus)
Duration
3days
25 Nov 2023 – 27 Nov 2023
Municipalities hit
3
communes
Started on
25 Nov
2023
Heat detections
103
in a single hotspot: 14 MW
Danger at start
53
Extreme · FWI index
Average daily power
194MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 25 Nov27 Nov
27 Nov 2023

How it evolved, day by day

25 Nov 2023 · 185 MW · 27 26 Nov 2023 · 371 MW · 69 27 Nov 2023 · 25 MW · 7
25 Nov 26 Nov 27 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

36°high
27km/h · peak gust
6%lowest humidity

It had gone 56 days without rain (1 mm or more) when it started.

This area had burned before

2% of the perimeter overlaps earlier fires recorded since 2016: 84 ha in 2021.

How big is it?

10 km
It burned the equivalent of 2.9% of the area of London (46 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. Déou where it started
    3,314 ha reached on 25 Nov
    1.6 %
  2. 1,263 ha reached on 26 Nov
    0.4 %
  3. 9 ha
    0.0 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

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)
25 Nov 34.8 °C 9 % 27 km/h 0.0 mm Extreme 53
26 Nov 36.4 °C 6 % 23 km/h 0.0 mm Extreme 53
27 Nov 35.9 °C 16 % 16 km/h 0.0 mm Very high 49
28 Nov after 36.9 °C 9 % 35 km/h 0.0 mm Extreme 61
29 Nov after 37.1 °C 10 % 36 km/h 0.0 mm Extreme 61
30 Nov after 38.2 °C 12 % 32 km/h 0.0 mm Extreme 58
1 Dec after 38.8 °C 10 % 36 km/h 0.0 mm Extreme 64
2 Dec after 37.8 °C 11 % 30 km/h 0.0 mm Extreme 56
3 Dec after 37.5 °C 11 % 32 km/h 0.0 mm Extreme 59
4 Dec after 35.9 °C 9 % 28 km/h 0.0 mm Extreme 55
5 Dec after 36.1 °C 8 % 27 km/h 0.0 mm Extreme 54
6 Dec after 36.7 °C 5 % 33 km/h 0.0 mm Extreme 60
7 Dec after 36.0 °C 5 % 36 km/h 0.0 mm Extreme 67

Before and after, from space

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

Before · 18 Nov 2023
After · 4 Dec 2023

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 26 November 2023 the air beside the fire reached 69 µg/m³ of PM2.5. That day averaged 43: 2.8 times the WHO daily guideline (15).

PM2.5 peak69 µg/m³
Days over the guideline7 days
PM10157 µg/m³
Optical depth0.38
2324252627282930
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 · 103Every 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 Burkina Faso ›

Frequently asked questions

How long did the Déou fire last?
GWIS (Copernicus) dates it between 25 November 2023 and 27 November 2023: 3 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 4,561 hectares (45.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Déou (3,314 ha, 1.6 %); Arbinda (1,263 ha, 0.4 %); Koutougou (9 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 36.4 °C, humidity dropped to 6 % and gusts hit 27 km/h. The fire danger index (FWI) reached 53, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Burkina Faso (OCHA COD-AB). 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.

Satellite cross-check

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.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 103 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.

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 OCHA COD-AB (Institut Geographique Burkina (IGB)) (Creative Commons Attribution for Intergovernmental Organisations (CC BY-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.