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Cacolo fire, 18 August 2022 Cacolo

Out · last detection 23 Aug 2022, 11:59 UTC

The fire started on 18 August 2022 in Cacolo, Angola, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,266 hectares from heat detections, spread across a single municipality.

It is the 209th largest in Lunda Sul since 2016 (of 240 with a page). Number 128 in Angola in 2022, of 143.

Compare with…
Burnt area
5,266ha
GWIS perimeter (Copernicus)
Duration
5days
18 Aug 2022 – 22 Aug 2022
Municipalities hit
1
municipalities
Started on
18 Aug
2022
Heat detections
263
in a single hotspot: 62 MW
Danger at start
43
Very high · FWI index
Average daily power
258MW
detected power per day, on average

Where it burned

23 Aug 2022
HOTSPOTS BY DAY 18 Aug22 Aug

How it evolved, day by day

18 Aug 2022 · 24 MW · 3 19 Aug 2022 · 89 MW · 18 20 Aug 2022 · 384 MW · 27 21 Aug 2022 · 602 MW · 120 22 Aug 2022 · 66 MW · 13 23 Aug 2022 · 385 MW · 21
18 Aug 19 Aug 20 Aug 21 Aug 22 Aug 23 Aug

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

The weather it burned in

32°high
47km/h · peak gust
17%lowest humidity

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

This area had burned before

91% of the perimeter overlaps earlier fires recorded since 2016: 2,154 ha in 2016, 1,329 ha in 2017, 1,687 ha in 2018, 2,883 ha in 2019, 2,431 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 4,787 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.3% of the area of London (53 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. Cacolo where it started
    5,295 ha reached on 11 Aug
    0.4 %

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)
18 Aug 31.8 °C 17 % 26 km/h 0.0 mm Very high 43
19 Aug 32.1 °C 18 % 33 km/h 0.0 mm Very high 47
20 Aug 30.7 °C 22 % 44 km/h 0.0 mm Very high 48
21 Aug 30.2 °C 18 % 44 km/h 0.0 mm Very high 48
22 Aug 30.8 °C 23 % 47 km/h 0.0 mm Very high 49
23 Aug after 29.8 °C 23 % 48 km/h 0.0 mm Very high 48
24 Aug after 30.6 °C 24 % 48 km/h 0.0 mm Very high 48
25 Aug after 31.2 °C 25 % 38 km/h 0.0 mm Very high 43
26 Aug after 30.0 °C 24 % 23 km/h 0.0 mm Very high 41
27 Aug after 31.0 °C 28 % 21 km/h 0.0 mm High 38
28 Aug after 29.6 °C 31 % 23 km/h 0.1 mm High 35
29 Aug after 28.6 °C 35 % 24 km/h 0.1 mm High 32
30 Aug after 30.0 °C 30 % 23 km/h 0.0 mm High 33
31 Aug after 30.9 °C 26 % 26 km/h 0.0 mm High 35
1 Sept after 30.7 °C 20 % 45 km/h 0.0 mm Very high 43

Before and after, from space

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

Before · 11 Aug 2022
After · 29 Aug 2022

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 · 263Every 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 Cacolo fire last?
GWIS (Copernicus) dates it between 18 August 2022 and 22 August 2022: 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 5,266 hectares (52.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Cacolo (5,295 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 32.1 °C, humidity dropped to 17 % and gusts hit 47 km/h. The fire danger index (FWI) reached 49, class Very 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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How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 263 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.

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.