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Dande fire, October 2021 Dande

Out · last detection 15 Oct 2021, 12:50 UTC

The fire started on 3 October 2021 in Dande, Angola, and satellites saw it burning for 13 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,667 hectares from heat detections, spread across a single municipality.

It is the 17th largest in Bengo since 2016 (of 20 with a page). Number 101 in Angola in 2021, of 126.

Burnt area
5,667ha
GWIS perimeter (Copernicus)
Duration
13days
3 Oct 2021 – 15 Oct 2021
Municipalities hit
1
municipalities
Started on
3 Oct
2021
Heat detections
228
in a single hotspot: 92 MW
Danger at start
16
Moderate · FWI index
Energy released
3.1GW
sum of detected power

Where it burned

15 Oct 2021
HOTSPOTS BY DAY 3 Oct15 Oct

How it evolved, day by day

3467891012131415

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

The weather it burned in

33°high
36km/h · peak gust
45%lowest humidity

It had gone 41 days without rain (1 mm or more) when it started. Rain came after the fire: 1.3 mm on 20 Oct.

This area had burned before

48% of the perimeter overlaps earlier fires recorded since 2016: 937 ha in 2018, 2,532 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 2,740 ha that had burned before.

What happened to each town

  1. Dande where it started
    5,704 ha reached on 3 Oct
    0.8 %

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)
3 Oct 28.4 °C 54 % 28 km/h 0.2 mm Moderate 16
4 Oct 27.8 °C 54 % 28 km/h 0.0 mm Moderate 16
5 Oct 29.0 °C 53 % 28 km/h 0.0 mm Moderate 17
6 Oct 30.2 °C 54 % 31 km/h 0.0 mm Moderate 18
7 Oct 31.2 °C 55 % 30 km/h 0.0 mm Moderate 19
8 Oct 31.0 °C 57 % 28 km/h 1.4 mm Low 11
9 Oct 31.4 °C 52 % 34 km/h 0.0 mm Moderate 20
10 Oct 29.7 °C 54 % 32 km/h 0.0 mm Moderate 20
11 Oct 28.4 °C 58 % 29 km/h 0.2 mm Moderate 19
12 Oct 32.7 °C 45 % 33 km/h 0.0 mm High 22
13 Oct 30.7 °C 51 % 36 km/h 0.0 mm High 25
14 Oct 31.4 °C 47 % 30 km/h 0.0 mm High 23
15 Oct 30.8 °C 49 % 27 km/h 0.2 mm High 23
16 Oct after 27.8 °C 62 % 30 km/h 0.0 mm Moderate 19
17 Oct after 30.3 °C 49 % 26 km/h 0.1 mm Moderate 20
18 Oct after 28.9 °C 56 % 32 km/h 0.2 mm Moderate 21
19 Oct after 31.4 °C 51 % 30 km/h 0.4 mm High 22
20 Oct after 28.6 °C 61 % 26 km/h 1.3 mm Low 9

Before and after, from space

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

Before · 26 Sept 2021
After · 22 Oct 2021

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 · 228Every 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 Angola ›

Frequently asked questions

How long did the Dande fire last?
GWIS (Copernicus) dates it between 3 October 2021 and 15 October 2021: 13 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 5,667 hectares (56.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Dande (5,704 ha, 0.8 %).
What was the weather like?
During the fire the temperature reached 32.7 °C, humidity dropped to 45 % and gusts hit 36 km/h. The fire danger index (FWI) reached 25, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Angola (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 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.