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CG · Republic of the Congo · –

Owando fire, 10 August 2024 Owando

Out · last detection 15 Aug 2024, 00:04 UTC

The fire started on 10 August 2024 in Owando, Republic of the Congo, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,050 hectares from heat detections, spread across a single municipality.

It is the 20th largest in Cuvette since 2016 (of 26 with a page). Number 85 in Republic of the Congo in 2024, of 103.

The power measured by the satellite is low (29.7 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…
Burnt area
1,050ha
GWIS perimeter (Copernicus)
Duration
6days
10 Aug 2024 – 15 Aug 2024
Municipalities hit
1
districts
Started on
10 Aug
2024
Heat detections
19
in a single hotspot: 30 MW
Danger at start
6
Low · FWI index
Average daily power
50MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 10 Aug15 Aug
15 Aug 2024

How it evolved, day by day

10 Aug 2024 · 78 MW · 5 12 Aug 2024 · 114 MW · 7 14 Aug 2024 · 5 MW · 5 15 Aug 2024 · 2 MW · 2
10 Aug 12 Aug 14 Aug 15 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
29km/h · peak gust
56%lowest humidity

It had gone 16 days without rain (1 mm or more) when it started. Rain came after the fire: 2.1 mm on 16 Aug.

This area had burned before

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

How big is it?

10 km
It burned the equivalent of 0.7% of the area of London (10 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. Owando where it started
    1,057 ha reached on 10 Aug
    0.1 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance runs from the point marking the centre of each area 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)
10 Aug 30.8 °C 64 % 27 km/h 1.3 mm Low 6
11 Aug 29.2 °C 67 % 26 km/h 3.4 mm Very low 3
12 Aug 30.7 °C 63 % 27 km/h 1.7 mm Very low 4
13 Aug 28.2 °C 69 % 29 km/h 2.0 mm Very low 3
14 Aug 30.4 °C 63 % 28 km/h 0.6 mm Low 6
15 Aug 31.9 °C 56 % 26 km/h 3.0 mm Very low 3
16 Aug after 31.3 °C 61 % 30 km/h 2.1 mm Very low 4

Its twins: fires that started in the same weather

It started with an FWI of 6.4, a minimum humidity of 64% and 16 days without rain. Fires in the area that started in weather like this since 2016: 46.

FWI at the start 6.4
Minimum humidity 64 %
Days without rain 16
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Plateaux fire, January 2024
1,309 ha 1 day FWI 7.3 Min. humidity 64 % 147 km away, in 2024

First rain (1 mm or more) after it ended: 1.6 mm on 24 Jan.

What happened to them

3 days
median duration
1,368 ha
median area
100 %
went past 1,000 ha
1.9 mm
rain at the end (median; 35 of 46 had it)

It burned an area similar to its twins (1,050 ha against a median of 1,368 ha) and lasted 6 days, against 3 days.

In 11 of 46, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 1.9 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

2.1 mmfirst rain
16 Augthe day after it ended
29km/h · max. gust

It was considered over on 15 Aug, and on 16 Aug 2.1 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 35 of 46, with a median of 1.9 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 3 Aug 2024
After · 22 Aug 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 10 August 2024 the air beside the fire reached 50 µg/m³ of PM2.5. That day averaged 38: 2.5 times the WHO daily guideline (15).

PM2.5 peak50 µg/m³
Days over the guideline11 days
PM1073 µg/m³
Optical depth1.71
8 Aug11 Aug14 Aug17 Aug
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 · 19Every 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 Republic of the Congo

Frequently asked questions

How long did the Owando fire last?
GWIS (Copernicus) dates it between 10 August 2024 and 15 August 2024: 6 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 1,050 hectares (10.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Owando (1,057 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 31.9 °C, humidity dropped to 56 % and gusts hit 29 km/h. The fire danger index (FWI) reached 6, class Low.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Republic of the Congo (geoBoundaries ADM2). It is not an official report.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 46. Their median duration was 3 days and their median area 1,368 ha; 100 % went past 1,000 ha. In 11 of 46, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 1.9 mm.

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

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

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. 19 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 (Map Library 2007, nombres de Wikidata) (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.