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Poli fire, 27 November 2017 Poli

Out · last detection 30 Nov 2017, 13:25 UTC

The fire started on 27 November 2017 in Poli, Cameroon, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,855 hectares from heat detections, spread across a single municipality.

It is the 156th largest in North since 2016 (of 1648 with a page). Number 24 in Cameroon in 2017, of 294.

Burnt area
2,855ha
GWIS perimeter (Copernicus)
Duration
4days
27 Nov 2017 – 30 Nov 2017
Municipalities hit
1
communes
Started on
27 Nov
2017
Heat detections
63
in a single hotspot: 68 MW
Danger at start
37
High · FWI index
Energy released
777MW
sum of detected power

Where it burned

30 Nov 2017
HOTSPOTS BY DAY 27 Nov30 Nov

How it evolved, day by day

282930

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
28km/h · peak gust
16%lowest humidity

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

This area had burned before

29% of the perimeter overlaps earlier fires recorded since 2016: 825 ha in 2016.

What happened to each town

  1. Poli where it started
    2,873 ha reached on 28 Nov
    0.3 %

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)
27 Nov 33.7 °C 19 % 23 km/h 0.0 mm High 37
28 Nov 34.6 °C 18 % 25 km/h 0.0 mm Very high 39
29 Nov 34.8 °C 18 % 26 km/h 0.0 mm Very high 39
30 Nov 35.7 °C 16 % 28 km/h 0.0 mm Very high 40
1 Dec after 34.6 °C 20 % 24 km/h 0.0 mm Very high 39
2 Dec after 35.1 °C 19 % 26 km/h 0.0 mm Very high 40
3 Dec after 35.4 °C 16 % 30 km/h 0.0 mm Very high 41
4 Dec after 35.9 °C 14 % 31 km/h 0.0 mm Very high 43
5 Dec after 35.8 °C 15 % 25 km/h 0.0 mm Very high 41
6 Dec after 35.7 °C 16 % 22 km/h 0.0 mm Very high 40
7 Dec after 33.9 °C 21 % 26 km/h 0.0 mm Very high 41
8 Dec after 32.8 °C 23 % 28 km/h 0.0 mm Very high 40
9 Dec after 33.2 °C 23 % 23 km/h 0.0 mm High 37
10 Dec after 33.2 °C 23 % 20 km/h 0.0 mm High 38

Before and after, from space

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

Before · 20 Nov 2017
After · 7 Dec 2017

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 · 63Every 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?
GWIS (Copernicus) dates it between 27 November 2017 and 30 November 2017: 4 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 2,855 hectares (28.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Poli (2,873 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 35.7 °C, humidity dropped to 16 % and gusts hit 28 km/h. The fire danger index (FWI) reached 40, 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

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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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.