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Bosso fire, September 2016 Bosso, N'Guigmi, Gueskérou

Out · last detection 3 Oct 2016, 01:10 UTC

The fire started on 29 September 2016 in Bosso, Niger, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,427 hectares from heat detections, spread across 4 municipalities.

It is the 5th largest in Diffa since 2016 (of 61 with a page). Number 2 in Niger in 2016, of 41.

The power measured by the satellite is low (26.8 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
6,427ha
GWIS perimeter (Copernicus)
Duration
5days
29 Sept 2016 – 3 Oct 2016
Municipalities hit
4
communes
Started on
29 Sept
2016
Heat detections
189
in a single hotspot: 27 MW
Danger at start
51
Extreme · FWI index
Energy released
1.3GW
sum of detected power

Where it burned

3 Oct 2016
HOTSPOTS BY DAY 29 Sept3 Oct

How it evolved, day by day

2930123

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

40°high
39km/h · peak gust
13%lowest humidity

It had gone 6 days without rain (1 mm or more) when it started.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

What happened to each town

  1. Bosso where it started
    5,751 ha reached on 29 Sept
    3.3 %
  2. N'Guigmi
    408 ha reached on 30 Sept
    0.1 %
  3. Gueskérou
    185 ha reached on 30 Sept
    0.1 %
  4. Toumour
    116 ha reached on 29 Sept
    1.6 %

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)
29 Sept 40.2 °C 13 % 39 km/h 0.0 mm Extreme 51
30 Sept 40.5 °C 14 % 28 km/h 0.0 mm Very high 45
1 Oct 40.5 °C 15 % 32 km/h 0.0 mm Very high 47
2 Oct 39.7 °C 16 % 34 km/h 0.0 mm Extreme 51
3 Oct 39.8 °C 14 % 24 km/h 0.0 mm Very high 47
4 Oct after 40.5 °C 12 % 34 km/h 0.0 mm Extreme 54
5 Oct after 39.9 °C 13 % 42 km/h 0.0 mm Extreme 59
6 Oct after 36.2 °C 21 % 37 km/h 0.0 mm Extreme 55
7 Oct after 40.1 °C 16 % 35 km/h 0.0 mm Extreme 52
8 Oct after 41.1 °C 11 % 38 km/h 0.0 mm Extreme 60
9 Oct after 40.5 °C 12 % 36 km/h 0.0 mm Extreme 58
10 Oct after 41.5 °C 14 % 33 km/h 0.0 mm Extreme 57
11 Oct after 40.5 °C 17 % 19 km/h 0.0 mm Very high 48
12 Oct after 38.7 °C 29 % 30 km/h 0.1 mm Very high 47
13 Oct after 40.9 °C 8 % 30 km/h 0.0 mm Extreme 59

Before and after, from space

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

Before · 22 Sept 2016
After · 10 Oct 2016

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 · 189Every 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 Niger ›

Frequently asked questions

How long did the Bosso fire last?
GWIS (Copernicus) dates it between 29 September 2016 and 3 October 2016: 5 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 6,427 hectares (64.3 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 4 municipalities: Bosso (5,751 ha, 3.3 %); N'Guigmi (408 ha, 0.1 %); Gueskérou (185 ha, 0.1 %); Toumour (116 ha, 1.6 %).
What was the weather like?
During the fire the temperature reached 40.5 °C, humidity dropped to 13 % and gusts hit 39 km/h. The fire danger index (FWI) reached 51, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Niger (OCHA COD-AB). 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 OCHA COD-AB (IGNN) (Creative Commons Attribution for Intergovernmental Organisations (CC BY-IGO)). 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.