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BJ · Benin · –

Tanguiéta fire, 29 November 2022 Tanguiéta

Out · last detection 3 Dec 2022, 13:33 UTC

The fire started on 29 November 2022 in Tanguiéta, Benin, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,799 hectares from heat detections, spread across a single municipality.

It is the 203th largest in Atakora since 2016 (of 420 with a page). Number 50 in Benin in 2022, of 96.

Burnt area
1,799ha
GWIS perimeter (Copernicus)
Duration
6days
29 Nov 2022 – 4 Dec 2022
Municipalities hit
1
communes
Started on
29 Nov
2022
Heat detections
36
in a single hotspot: 69 MW
Danger at start
40
Very high · FWI index
Average daily power
125MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 29 Nov4 Dec
3 Dec 2022

How it evolved, day by day

29 Nov 2022 · 504 MW · 19 30 Nov 2022 · 30 MW · 6 1 Dec 2022 · 66 MW · 5 2 Dec 2022 · 18 MW · 4 3 Dec 2022 · 8 MW · 2
29 Nov 30 Nov 1 Dec 2 Dec 3 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

37°high
34km/h · peak gust
18%lowest humidity

It had gone 44 days without rain (1 mm or more) when it started.

This area had burned before

62% of the perimeter overlaps earlier fires recorded since 2016: 629 ha in 2019, 890 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 1,117 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.1% of the area of London (18 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. Tanguiéta where it started
    1,810 ha reached on 29 Nov
    0.3 %

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)
29 Nov 35.3 °C 18 % 21 km/h 0.0 mm Very high 40
30 Nov 34.7 °C 21 % 25 km/h 0.0 mm Very high 40
1 Dec 35.8 °C 20 % 19 km/h 0.0 mm Very high 39
2 Dec 36.4 °C 22 % 25 km/h 0.0 mm Very high 41
3 Dec 36.0 °C 24 % 18 km/h 0.0 mm Very high 38
4 Dec 37.2 °C 20 % 34 km/h 0.0 mm Very high 45
5 Dec after 36.5 °C 19 % 40 km/h 0.0 mm Very high 49
6 Dec after 35.5 °C 16 % 37 km/h 0.0 mm Very high 46
7 Dec after 35.4 °C 18 % 31 km/h 0.0 mm Very high 44
8 Dec after 35.2 °C 17 % 35 km/h 0.0 mm Very high 46
9 Dec after 34.6 °C 17 % 37 km/h 0.0 mm Very high 48
10 Dec after 34.4 °C 16 % 32 km/h 0.0 mm Very high 46
11 Dec after 34.0 °C 13 % 34 km/h 0.0 mm Very high 47
12 Dec after 35.0 °C 15 % 33 km/h 0.0 mm Very high 46
13 Dec after 35.4 °C 16 % 32 km/h 0.0 mm Very high 46
14 Dec after 35.4 °C 13 % 30 km/h 0.0 mm Very high 46

Its twins: fires that started in the same weather

It started with an FWI of 39.8, a minimum humidity of 18% and 44 days without rain. Fires in the area that started in weather like this since 2016: 63.

FWI at the start 39.8
Minimum humidity 18 %
Days without rain 44
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Pama fire, November 2020
2,298 ha 7 days FWI 40.7 Min. humidity 17 % 86 km away, in 2020

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

What happened to them

4 days
median duration
1,486 ha
median area
100 %
went past 1,000 ha
—
rain at the end (median; 0 of 63 had it)

It burned an area similar to its twins (1,799 ha against a median of 1,486 ha) and lasted 6 days, against 4 days.

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
34km/h · max. gust

It was considered over on 4 Dec, and not even 1 mm fell in the following ten days: it went out without rain. None of its 63 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 · 22 Nov 2022
After · 11 Dec 2022

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 1 December 2022 the air beside the fire reached 58 µg/m³ of PM2.5. That day averaged 40: 2.7 times the WHO daily guideline (15).

PM2.5 peak58 µg/m³
Days over the guideline11 days
PM1087 µg/m³
Optical depth0.91
27 Nov30 Nov3 Dec6 Dec
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 · 36Every 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 Benin

Frequently asked questions

How long did the Tanguiéta fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 29 November 2022 to 4 December 2022 (6 days). The perimeter dates it from 29 November 2022 to 3 December 2022.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,799 hectares (18.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Tanguiéta (1,810 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 37.2 °C, humidity dropped to 18 % and gusts hit 34 km/h. The fire danger index (FWI) reached 45, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Benin (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: 63. Their median duration was 4 days and their median area 1,486 ha; 100 % went past 1,000 ha. 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 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.

Report an error
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How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 29 November 2022 to 3 December 2022. 36 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 ADM2 (Public Domain). 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.