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Poli fire, 20 January 2020 Poli

Out · last detection 31 Jan 2020, 12:34 UTC

The fire started on 20 January 2020 in Poli, Cameroon, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 7,115 hectares from heat detections, spread across a single municipality.

It is the 11th largest in North since 2016 (of 1648 with a page). Number 4 in Cameroon in 2020, of 268.

Compare with…
Burnt area
7,115ha
GWIS perimeter (Copernicus)
Duration
12days
20 Jan 2020 – 31 Jan 2020
Municipalities hit
1
communes
Started on
20 Jan
2020
Heat detections
198
in a single hotspot: 235 MW
Danger at start
40
Very high · FWI index
Average daily power
351MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 20 Jan31 Jan
31 Jan 2020

How it evolved, day by day

20 Jan 2020 · 12 MW · 1 21 Jan 2020 · 112 MW · 3 22 Jan 2020 · 2,922 MW · 56 23 Jan 2020 · 205 MW · 58 24 Jan 2020 · 157 MW · 42 25 Jan 2020 · 56 MW · 22 26 Jan 2020 · 19 MW · 7 27 Jan 2020 · 16 MW · 5 29 Jan 2020 · 3 MW · 3 31 Jan 2020 · 5 MW · 1
20 Jan 22 Jan 24 Jan 26 Jan 29 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

34°high
39km/h · peak gust
13%lowest humidity

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

This area had burned before

68% of the perimeter overlaps earlier fires recorded since 2016: 2,240 ha in 2016, 1,504 ha in 2017, 2,101 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 4,852 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 4.5% of the area of London (71 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. Poli where it started
    7,154 ha reached on 20 Jan
    0.7 %

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)
21 Jan 33.6 °C 18 % 38 km/h 0.0 mm Very high 40
22 Jan 33.2 °C 15 % 38 km/h 0.0 mm Very high 42
23 Jan 31.8 °C 14 % 38 km/h 0.0 mm Very high 42
24 Jan 31.2 °C 13 % 38 km/h 0.0 mm Very high 42
25 Jan 30.0 °C 14 % 39 km/h 0.0 mm Very high 43
26 Jan 31.6 °C 14 % 32 km/h 0.0 mm Very high 41
27 Jan 32.9 °C 15 % 29 km/h 0.0 mm Very high 41
28 Jan 33.9 °C 15 % 32 km/h 0.0 mm Very high 42
29 Jan 33.5 °C 13 % 32 km/h 0.0 mm Very high 43
30 Jan 32.1 °C 13 % 28 km/h 0.0 mm Very high 43
31 Jan 32.2 °C 15 % 29 km/h 0.0 mm Very high 44
1 Feb after 32.1 °C 15 % 30 km/h 0.0 mm Very high 44
2 Feb after 32.5 °C 16 % 31 km/h 0.0 mm Very high 46
3 Feb after 33.1 °C 15 % 27 km/h 0.0 mm Very high 44
4 Feb after 32.8 °C 15 % 31 km/h 0.0 mm Very high 46
5 Feb after 32.8 °C 15 % 31 km/h 0.0 mm Very high 46
6 Feb after 32.2 °C 17 % 31 km/h 0.0 mm Very high 45

Before and after, from space

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

Before · 13 Jan 2020
After · 7 Feb 2020

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 · 198Every 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 Cameroon ›

Frequently asked questions

How long did the Poli fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 20 January 2020 to 31 January 2020 (12 days). The perimeter dates it from 21 January 2020 to 27 January 2020.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 7,115 hectares (71.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Poli (7,154 ha, 0.7 %).
What was the weather like?
During the fire the temperature reached 33.6 °C, humidity dropped to 13 % and gusts hit 39 km/h. The fire danger index (FWI) reached 43, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Cameroon (geoBoundaries). 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

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: 27 January 2020 → 31 January 2020.
  2. Start date: 21 January 2020 → 20 January 2020.

RSS Changes to this page

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 21 January 2020 to 27 January 2020. 198 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 ADM3 (Open Data Commons Open Database License 1.0). 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.