Skip to content
worldfires
CF · Central African Republic · –

Nana-Outa fire, January 2024 Nana-Outa

Out · last detection 29 Jan 2024, 11:38 UTC

The fire started on 20 January 2024 in Nana-Outa, Central African Republic, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 7,149 hectares from heat detections, spread across a single municipality.

Number 43 in Central African Republic in 2024, of 87.

Burnt area
7,149ha
GWIS perimeter (Copernicus)
Duration
10days
20 Jan 2024 – 29 Jan 2024
Municipalities hit
1
sub-prefectures
Started on
20 Jan
2024
Heat detections
180
in a single hotspot: 65 MW
Danger at start
52
Extreme · FWI index
Average daily power
164MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 20 Jan29 Jan
29 Jan 2024

How it evolved, day by day

20 Jan 2024 · 302 MW · 16 22 Jan 2024 · 62 MW · 6 23 Jan 2024 · 109 MW · 20 24 Jan 2024 · 264 MW · 30 25 Jan 2024 · 139 MW · 22 26 Jan 2024 · 93 MW · 12 27 Jan 2024 · 262 MW · 36 28 Jan 2024 · 226 MW · 34 29 Jan 2024 · 19 MW · 4
20 Jan 23 Jan 25 Jan 27 Jan 29 Jan

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

The weather it burned in

39°high
31km/h · peak gust
8%lowest humidity

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

This area had burned before

70% of the perimeter overlaps earlier fires recorded since 2016: 915 ha in 2016, 888 ha in 2017, 1,351 ha in 2018, 2,652 ha in 2019, 2,977 ha in 2020, 517 ha in 2021, 228 ha in 2022, 39 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 4,970 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 4.5% of the area of London (71 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. Nana-Outa where it started
    7,199 ha reached on 20 Jan
    0.9 %

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.

People and buildings inside the perimeter

GHSL 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)

Started with Very dry air: 42 % of the area in Central African Republic 60 days without rain: 30 % of the area in Central African Republic

Day High Min. humidity Peak gust Rain Danger (FWI)
20 Jan 36.7 °C 10 % 27 km/h 0.0 mm Extreme 52
21 Jan 37.1 °C 8 % 29 km/h 0.0 mm Extreme 53
22 Jan 37.4 °C 10 % 24 km/h 0.0 mm Extreme 55
23 Jan 38.7 °C 10 % 20 km/h 0.0 mm Extreme 57
24 Jan 38.7 °C 11 % 27 km/h 0.0 mm Extreme 55
25 Jan 36.9 °C 12 % 31 km/h 0.0 mm Extreme 58
26 Jan 35.7 °C 14 % 29 km/h 0.0 mm Extreme 53
27 Jan 35.3 °C 14 % 30 km/h 0.0 mm Extreme 52
28 Jan 36.7 °C 12 % 26 km/h 0.0 mm Extreme 52
29 Jan 36.9 °C 11 % 23 km/h 0.0 mm Extreme 52
30 Jan after 37.9 °C 12 % 24 km/h 0.0 mm Extreme 53
31 Jan after 37.2 °C 12 % 28 km/h 0.0 mm Extreme 55
1 Feb after 37.2 °C 13 % 30 km/h 0.0 mm Extreme 55
2 Feb after 36.3 °C 13 % 26 km/h 0.0 mm Extreme 55
3 Feb after 37.4 °C 12 % 23 km/h 0.0 mm Extreme 55
4 Feb after 37.5 °C 11 % 26 km/h 0.0 mm Extreme 55
5 Feb after 38.0 °C 11 % 29 km/h 0.0 mm Extreme 54
6 Feb after 38.2 °C 12 % 30 km/h 0.0 mm Extreme 57
7 Feb after 37.4 °C 11 % 26 km/h 0.0 mm Extreme 55
8 Feb after 38.2 °C 12 % 25 km/h 0.0 mm Extreme 55

Its twins: fires that started in the same weather

It started with an FWI of 52.5, a minimum humidity of 10% and more than two months without rain. Fires in the area that started in weather like this since 2016: 18.

FWI at the start 52.5
Minimum humidity 10 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Nana-Outa fire, February 2023
6,183 ha 18 days FWI 53.9 Min. humidity 10 % 62 km away, in 2023

First rain (1 mm or more) after it ended: none in the following ten days.

What happened to them

12 days
median duration
5,899 ha
median area
11 %
went past 10,000 ha
—
rain at the end (median; 0 of 18 had it)

It burned an area similar to its twins (7,149 ha against a median of 5,899 ha) and lasted 10 days, against 12 days.

In none of them did 1 mm fall in the ten days after the end: they all went out without rain.

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

—first rain
—no rain in ten days
31km/h · max. gust

It was considered over on 29 Jan, and not even 1 mm fell in the following ten days: it went out without rain. None of its 18 twins had rain when they ended.

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 · 13 Jan 2024
After · 5 Feb 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 18 January 2024 the air beside the fire reached 92 µg/m³ of PM2.5. That day averaged 56: 3.7 times the WHO daily guideline (15).

PM2.5 peak92 µg/m³
Days over the guideline15 days
PM10134 µg/m³
Optical depth0.94
18 Jan21 Jan24 Jan27 Jan30 Jan
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 · 180Every 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 Central African Republic

Frequently asked questions

How long did the Nana-Outa fire last?
GWIS (Copernicus) dates it between 20 January 2024 and 29 January 2024: 10 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 7,149 hectares (71.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Nana-Outa (7,199 ha, 0.9 %).
What was the weather like?
During the fire the temperature reached 38.7 °C, humidity dropped to 8 % and gusts hit 31 km/h. The fire danger index (FWI) reached 58, class Extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Central African Republic (geoBoundaries). 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: 18. Their median duration was 12 days and their median area 5,899 ha; 11 % went past 10,000 ha. In none of them did 1 mm fall in the ten days after the end: they all went out without rain.

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.

Report an error
What do you think is wrong?

We will only use your email to reply about this report. Privacy.

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. 180 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.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

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 ADM3 (Creative Commons Attribution 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.