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Cacolo fire, July 2017 Cacolo

Out · last detection 11 Aug 2017, 00:25 UTC

The fire started on 23 July 2017 in Cacolo, Angola, and satellites saw it burning for 20 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,964 hectares from heat detections, spread across a single municipality.

It is the 159th largest in Lunda Sul since 2016 (of 240 with a page). Number 101 in Angola in 2017, of 158.

Burnt area
5,964ha
GWIS perimeter (Copernicus)
Duration
20days
23 Jul 2017 – 11 Aug 2017
Municipalities hit
1
municipalities
Started on
23 Jul
2017
Heat detections
183
in a single hotspot: 242 MW
Danger at start
40
Very high · FWI index
Energy released
2.6GW
sum of detected power

Where it burned

11 Aug 2017
HOTSPOTS BY DAY 23 Jul11 Aug

How it evolved, day by day

232425262728293031234567891011

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

The weather it burned in

30°high
46km/h · peak gust
15%lowest humidity

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

This area had burned before

4% of the perimeter overlaps earlier fires recorded since 2016: 237 ha in 2016.

What happened to each town

  1. Cacolo where it started
    6,002 ha reached on 23 Jul
    0.5 %

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)
23 Jul 29.5 °C 16 % 30 km/h 0.0 mm Very high 40
24 Jul 28.5 °C 19 % 28 km/h 0.0 mm Very high 40
25 Jul 29.2 °C 15 % 36 km/h 0.0 mm Very high 43
26 Jul 27.3 °C 20 % 41 km/h 0.0 mm Very high 46
27 Jul 26.4 °C 24 % 38 km/h 0.0 mm Very high 41
28 Jul 26.1 °C 22 % 46 km/h 0.0 mm Very high 45
29 Jul 24.7 °C 24 % 46 km/h 0.0 mm Very high 44
30 Jul 26.7 °C 22 % 44 km/h 0.0 mm Very high 43
31 Jul 28.2 °C 22 % 39 km/h 0.0 mm Very high 41
1 Aug 28.8 °C 19 % 46 km/h 0.0 mm Very high 44
2 Aug 26.6 °C 27 % 37 km/h 0.0 mm Very high 39
3 Aug 29.1 °C 18 % 45 km/h 0.0 mm Very high 45
4 Aug 30.1 °C 17 % 35 km/h 0.0 mm Very high 43
5 Aug 28.9 °C 19 % 32 km/h 0.0 mm Very high 42
6 Aug 28.4 °C 19 % 38 km/h 0.0 mm Very high 43
7 Aug 28.3 °C 19 % 46 km/h 0.0 mm Very high 47
8 Aug 28.5 °C 24 % 44 km/h 0.0 mm Very high 45
9 Aug 26.8 °C 21 % 46 km/h 0.0 mm Very high 46
10 Aug 26.9 °C 18 % 46 km/h 0.0 mm Very high 46
11 Aug 26.1 °C 20 % 41 km/h 0.0 mm Very high 44
12 Aug after 27.5 °C 20 % 48 km/h 0.0 mm Very high 48
13 Aug after 28.4 °C 20 % 47 km/h 0.0 mm Very high 47
14 Aug after 28.0 °C 20 % 48 km/h 0.0 mm Very high 48
15 Aug after 27.9 °C 17 % 46 km/h 0.0 mm Very high 47
16 Aug after 29.2 °C 16 % 31 km/h 0.0 mm Very high 42
17 Aug after 30.4 °C 14 % 22 km/h 0.0 mm Very high 41
18 Aug after 28.1 °C 24 % 35 km/h 0.0 mm Very high 42
19 Aug after 29.2 °C 18 % 34 km/h 0.0 mm Very high 41
20 Aug after 28.2 °C 26 % 50 km/h 0.0 mm Very high 47
21 Aug after 28.2 °C 20 % 46 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 · 16 Jul 2017
After · 18 Aug 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 · 183Every 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 23 July 2017 and 11 August 2017: 20 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 5,964 hectares (59.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Cacolo (6,002 ha, 0.5 %).
What was the weather like?
During the fire the temperature reached 30.1 °C, humidity dropped to 15 % and gusts hit 46 km/h. The fire danger index (FWI) reached 47, 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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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.