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AO · Angola · →

Cuilo fire, June 2024 Cuilo

Out · last detection 6 Jul 2024, 11:52 UTC

The fire started on 25 June 2024 in Cuilo, Angola, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 9,734 hectares from heat detections, spread across a single municipality.

It is the 93th largest in Lunda Norte since 2016 (of 411 with a page). Number 29 in Angola in 2024, of 135.

Burnt area
9,734ha
GWIS perimeter (Copernicus)
Duration
11days
25 Jun 2024 – 5 Jul 2024
Municipalities hit
1
municipalities
Started on
25 Jun
2024
Heat detections
384
in a single hotspot: 46 MW
Danger at start
42
Very high · FWI index
Energy released
2.2GW
sum of detected power

Where it burned

6 Jul 2024
HOTSPOTS BY DAY 25 Jun5 Jul

How it evolved, day by day

252627282930123456

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
41km/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

97% of the perimeter overlaps earlier fires recorded since 2016: 7,134 ha in 2016, 4,363 ha in 2017, 822 ha in 2018, 2,899 ha in 2019, 2,899 ha in 2020, 4,757 ha in 2021, 1,314 ha in 2022, 1,845 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 9,450 ha that had burned before.

What happened to each town

  1. Cuilo where it started
    9,800 ha reached on 25 Jun
    1.0 %

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)
25 Jun 29.7 °C 24 % 39 km/h 0.0 mm Very high 42
26 Jun 29.4 °C 24 % 38 km/h 0.0 mm Very high 42
27 Jun 29.5 °C 22 % 41 km/h 0.0 mm Very high 43
28 Jun 29.8 °C 21 % 41 km/h 0.0 mm Very high 42
29 Jun 30.6 °C 23 % 36 km/h 0.0 mm Very high 41
30 Jun 30.5 °C 24 % 37 km/h 0.0 mm Very high 41
1 Jul 31.6 °C 22 % 38 km/h 0.0 mm Very high 42
2 Jul 31.3 °C 21 % 34 km/h 0.0 mm Very high 41
3 Jul 31.0 °C 20 % 39 km/h 0.0 mm Very high 44
4 Jul 31.6 °C 20 % 37 km/h 0.0 mm Very high 42
5 Jul 31.7 °C 19 % 39 km/h 0.0 mm Very high 44
6 Jul after 31.6 °C 17 % 37 km/h 0.0 mm Very high 44
7 Jul after 30.4 °C 20 % 30 km/h 0.0 mm Very high 41
8 Jul after 30.0 °C 22 % 23 km/h 0.0 mm Very high 38
9 Jul after 31.1 °C 17 % 30 km/h 0.0 mm Very high 41
10 Jul after 30.9 °C 14 % 44 km/h 0.0 mm Very high 50
11 Jul after 30.7 °C 15 % 35 km/h 0.0 mm Very high 47
12 Jul after 31.7 °C 15 % 30 km/h 0.0 mm Very high 45
13 Jul after 32.5 °C 19 % 25 km/h 0.0 mm Very high 41
14 Jul after 33.3 °C 13 % 31 km/h 0.0 mm Very high 44
15 Jul after 32.7 °C 13 % 34 km/h 0.0 mm Very high 46
16 Jul after 31.4 °C 23 % 28 km/h 0.0 mm Very high 42

Before and after, from space

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

Before · 18 Jun 2024
After · 12 Jul 2024

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

The smoke

CAMS · Copernicus

On 8 July 2024 the air beside the fire reached 90 µg/m³ of PM2.5. That day averaged 65: 4.3 times the WHO daily guideline (15).

PM2.5 peak90 µg/m³
Days over the guideline16 days
PM10129 µg/m³
Optical depth1.04
232425262728293012345678
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Detections table · 384Every 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 Cuilo fire last?
GWIS (Copernicus) dates it between 25 June 2024 and 5 July 2024: 11 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 9,734 hectares (97.3 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Cuilo (9,800 ha, 1.0 %).
What was the weather like?
During the fire the temperature reached 31.7 °C, humidity dropped to 17 % and gusts hit 41 km/h. The fire danger index (FWI) reached 44, 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.