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BJ · Benin · –

Malanville fire, 30 November 2019 Malanville

Out · last detection 5 Dec 2019, 13:45 UTC

The fire started on 30 November 2019 in Malanville, Benin, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,424 hectares from heat detections, spread across a single municipality.

It is the 249th largest in Alibori since 2016 (of 448 with a page). Number 70 in Benin in 2019, of 120.

The power measured by the satellite is low (8.5 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
1,424ha
GWIS perimeter (Copernicus)
Duration
6days
30 Nov 2019 – 5 Dec 2019
Municipalities hit
1
communes
Started on
30 Nov
2019
Heat detections
45
in a single hotspot: 9 MW
Danger at start
50
Very high · FWI index
Average daily power
35MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 30 Nov5 Dec
5 Dec 2019

How it evolved, day by day

30 Nov 2019 · 25 MW · 7 1 Dec 2019 · 86 MW · 21 2 Dec 2019 · 30 MW · 8 3 Dec 2019 · 27 MW · 7 5 Dec 2019 · 5 MW · 2
30 Nov 1 Dec 2 Dec 3 Dec 5 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

36°high
36km/h · peak gust
15%lowest humidity

It had gone 41 days without rain (1 mm or more) when it started.

This area had burned before

69% of the perimeter overlaps earlier fires recorded since 2016: 976 ha in 2017.

How big is it?

10 km
It burned the equivalent of 0.9% of the area of London (14 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. Malanville where it started
    1,433 ha reached on 30 Nov
    0.4 %

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)
30 Nov 36.2 °C 15 % 36 km/h 0.0 mm Very high 50
1 Dec 36.1 °C 15 % 32 km/h 0.0 mm Very high 48
2 Dec 35.5 °C 18 % 28 km/h 0.0 mm Very high 45
3 Dec 35.2 °C 19 % 31 km/h 0.0 mm Very high 46
4 Dec 34.7 °C 15 % 28 km/h 0.0 mm Very high 46
5 Dec 34.9 °C 15 % 28 km/h 0.0 mm Very high 46
6 Dec after 35.8 °C 22 % 30 km/h 0.0 mm Very high 44
7 Dec after 35.4 °C 18 % 28 km/h 0.0 mm Very high 45
8 Dec after 35.4 °C 15 % 30 km/h 0.0 mm Very high 46
9 Dec after 35.4 °C 19 % 28 km/h 0.0 mm Very high 46
10 Dec after 35.3 °C 16 % 25 km/h 0.0 mm Very high 45
11 Dec after 35.0 °C 14 % 28 km/h 0.0 mm Very high 45
12 Dec after 34.3 °C 13 % 35 km/h 0.0 mm Extreme 50
13 Dec after 33.0 °C 13 % 35 km/h 0.0 mm Extreme 52
14 Dec after 33.2 °C 10 % 33 km/h 0.0 mm Extreme 50
15 Dec after 33.6 °C 14 % 30 km/h 0.0 mm Very high 50

Its twins: fires that started in the same weather

It started with an FWI of 49.7, a minimum humidity of 15% and 41 days without rain. Fires in the area that started in weather like this since 2016: 34.

FWI at the start 49.7
Minimum humidity 15 %
Days without rain 41
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Karimama fire, November 2016
1,523 ha 2 days FWI 49.8 Min. humidity 14 % 26 km away, in 2016

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

What happened to them

4 days
median duration
1,656 ha
median area
97 %
went past 1,000 ha
—
rain at the end (median; 0 of 34 had it)

It burned an area similar to its twins (1,424 ha against a median of 1,656 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
36km/h · max. gust

It was considered over on 5 Dec, and not even 1 mm fell in the following ten days: it went out without rain. None of its 34 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 · 23 Nov 2019
After · 12 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 · 45Every 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 Malanville fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 30 November 2019 to 5 December 2019 (6 days). The perimeter dates it from 30 November 2019 to 3 December 2019.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,424 hectares (14.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Malanville (1,433 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 36.2 °C, humidity dropped to 15 % and gusts hit 36 km/h. The fire danger index (FWI) reached 50, 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: 34. Their median duration was 4 days and their median area 1,656 ha; 97 % 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.

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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 30 November 2019 to 3 December 2019. 45 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.