Skip to content
worldfires
BJ · Benin · –

Tanguiéta fire, 23 November 2019 Tanguiéta

Out · last detection 9 Dec 2019, 01:23 UTC

The fire started on 23 November 2019 in Tanguiéta, Benin, and satellites saw it burning for 20 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 36,910 hectares from heat detections, spread across a single municipality.

It is the 7th largest in Atakora since 2016 (of 420 with a page). Number 2 in Benin in 2019, of 120.

Burnt area
36,910ha
GWIS perimeter (Copernicus)
Duration
20days
23 Nov 2019 – 12 Dec 2019
Municipalities hit
1
communes
Started on
23 Nov
2019
Heat detections
1,214
in a single hotspot: 261 MW
Danger at start
31
High · FWI index
Average daily power
1.4GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 23 Nov12 Dec
9 Dec 2019

How it evolved, day by day

23 Nov 2019 · 9 MW · 2 25 Nov 2019 · 8 MW · 1 26 Nov 2019 · 6 MW · 1 27 Nov 2019 · 38 MW · 5 28 Nov 2019 · 31 MW · 7 29 Nov 2019 · 14,613 MW · 485 30 Nov 2019 · 1,969 MW · 281 1 Dec 2019 · 2,598 MW · 143 2 Dec 2019 · 410 MW · 57 3 Dec 2019 · 353 MW · 73 4 Dec 2019 · 522 MW · 59 5 Dec 2019 · 785 MW · 55 6 Dec 2019 · 347 MW · 28 7 Dec 2019 · 20 MW · 6 8 Dec 2019 · 66 MW · 10 9 Dec 2019 · 1 MW · 1
23 Nov 29 Nov 2 Dec 6 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

39°high
40km/h · peak gust
10%lowest humidity

It had gone 22 days without rain (1 mm or more) when it started.

This area had burned before

36% of the perimeter overlaps earlier fires recorded since 2016: 5,360 ha in 2016, 10,121 ha in 2017, 770 ha in 2018. Part of it burned more than once, so the yearly figures add up to more than the 13,387 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 23% of the area of London (369 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
    37,075 ha reached on 23 Nov
    6.6 %

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 area0.27 ha
Residents≈ 30

Inside the perimeter there were about 0.27 hectares of built-up land and about 30 residents (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)
23 Nov 38.0 °C 25 % 18 km/h 0.0 mm High 31
24 Nov 38.6 °C 26 % 27 km/h 0.0 mm High 35
25 Nov 38.8 °C 23 % 24 km/h 0.0 mm High 34
26 Nov 38.9 °C 21 % 22 km/h 0.0 mm High 34
27 Nov 38.8 °C 22 % 30 km/h 0.0 mm Very high 39
28 Nov 38.7 °C 15 % 39 km/h 0.0 mm Very high 48
29 Nov 37.5 °C 10 % 40 km/h 0.0 mm Extreme 55
30 Nov 37.7 °C 11 % 40 km/h 0.0 mm Extreme 55
1 Dec 37.6 °C 14 % 34 km/h 0.0 mm Extreme 50
2 Dec 37.0 °C 15 % 28 km/h 0.0 mm Very high 47
3 Dec 36.8 °C 20 % 28 km/h 0.0 mm Very high 45
4 Dec 36.7 °C 14 % 30 km/h 0.0 mm Very high 47
5 Dec 36.2 °C 12 % 33 km/h 0.0 mm Very high 49
6 Dec 36.9 °C 18 % 27 km/h 0.0 mm Very high 44
7 Dec 36.6 °C 18 % 28 km/h 0.0 mm Very high 48
8 Dec 37.0 °C 11 % 27 km/h 0.0 mm Very high 47
9 Dec 37.1 °C 13 % 27 km/h 0.0 mm Very high 48
10 Dec 37.3 °C 14 % 27 km/h 0.0 mm Very high 47
11 Dec 36.7 °C 12 % 30 km/h 0.0 mm Very high 49
12 Dec 36.1 °C 11 % 36 km/h 0.0 mm Extreme 53
13 Dec after 35.5 °C 13 % 35 km/h 0.0 mm Extreme 55
14 Dec after 35.3 °C 10 % 33 km/h 0.0 mm Extreme 53
15 Dec after 35.4 °C 12 % 30 km/h 0.0 mm Extreme 53
16 Dec after 36.3 °C 7 % 35 km/h 0.0 mm Extreme 58
17 Dec after 36.4 °C 12 % 31 km/h 0.0 mm Extreme 55
18 Dec after 35.6 °C 15 % 34 km/h 0.0 mm Extreme 54
19 Dec after 35.8 °C 16 % 37 km/h 0.0 mm Extreme 56
20 Dec after 35.9 °C 14 % 35 km/h 0.0 mm Extreme 54
21 Dec after 35.6 °C 14 % 35 km/h 0.0 mm Extreme 56
22 Dec after 36.3 °C 6 % 38 km/h 0.0 mm Extreme 61

Its twins: fires that started in the same weather

It started with an FWI of 31.3, a minimum humidity of 25% and 22 days without rain. Fires in the area that started in weather like this since 2016: 31.

FWI at the start 31.3
Minimum humidity 25 %
Days without rain 22
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Madjoari fire, November 2022
1,016 ha 7 days FWI 29.8 Min. humidity 25 % 31 km away, in 2022

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

What happened to them

6 days
median duration
1,372 ha
median area
100 %
went past 1,000 ha
—
rain at the end (median; 0 of 31 had it)

It was 26.9 times larger than the median of its twins and lasted 20 days, against 6 days.

None of its 31 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
40km/h · max. gust

It was considered over on 12 Dec, and not even 1 mm fell in the following ten days: it went out without rain. None of its 31 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 · 16 Nov 2019
After · 19 Dec 2019

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 · 1,214Every 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 23 November 2019 to 12 December 2019 (20 days). The perimeter dates it from 27 November 2019 to 7 December 2019.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 36,910 hectares (369.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Tanguiéta (37,075 ha, 6.6 %).
What was the weather like?
During the fire the temperature reached 38.9 °C, humidity dropped to 10 % and gusts hit 40 km/h. The fire danger index (FWI) reached 55, class Extreme.
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: 31. Their median duration was 6 days and their median area 1,372 ha; 100 % went past 1,000 ha. None of its 31 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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 8 December 2019 → 12 December 2019.
  2. Start date: 27 November 2019 → 23 November 2019.

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
What do you think is wrong?

We will only use your email to reply about this report. Privacy.

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 27 November 2019 to 7 December 2019. 1,214 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.