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Nyirol fire, 6 January 2024 Nyirol, Canal/Pigi, Ayod

Out · last detection 19 Jan 2024, 11:25 UTC

The fire started on 6 January 2024 in Nyirol, South Sudan, and satellites saw it burning for 14 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,646 hectares from heat detections, spread across 3 municipalities.

It is the 157th largest in Jonglei since 2016 (of 428 with a page). Number 72 in South Sudan in 2024, of 185.

Compare with…
Burnt area
8,646ha
GWIS perimeter (Copernicus)
Duration
14days
6 Jan 2024 – 19 Jan 2024
Municipalities hit
3
counties
Started on
6 Jan
2024
Heat detections
279
in a single hotspot: 152 MW
Danger at start
63
Extreme · FWI index
Average daily power
230MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 6 Jan19 Jan
19 Jan 2024

How it evolved, day by day

6 Jan 2024 · 4 MW · 2 7 Jan 2024 · 105 MW · 17 8 Jan 2024 · 86 MW · 9 9 Jan 2024 · 127 MW · 22 10 Jan 2024 · 1,693 MW · 77 11 Jan 2024 · 446 MW · 51 12 Jan 2024 · 92 MW · 13 13 Jan 2024 · 82 MW · 10 14 Jan 2024 · 198 MW · 25 15 Jan 2024 · 136 MW · 20 16 Jan 2024 · 152 MW · 20 17 Jan 2024 · 48 MW · 6 18 Jan 2024 · 36 MW · 5 19 Jan 2024 · 7 MW · 2
6 Jan 8 Jan 10 Jan 12 Jan 14 Jan 16 Jan 18 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
49km/h · peak gust
10%lowest humidity

It had gone 52 days without rain (1 mm or more) when it started.

This area had burned before

94% of the perimeter overlaps earlier fires recorded since 2016: 1,188 ha in 2016, 2,311 ha in 2017, 1,890 ha in 2018, 2,176 ha in 2019, 2,353 ha in 2020, 1,861 ha in 2021, 5,605 ha in 2022, 1,214 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 8,164 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 5.5% of the area of London (86 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. Nyirol where it started
    6,325 ha reached on 6 Jan
    0.9 %
  2. 2,110 ha reached on 11 Jan
    0.5 %
  3. 269 ha reached on 14 Jan
    0.0 %

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)

Day High Min. humidity Peak gust Rain Danger (FWI)
6 Jan 36.8 °C 10 % 42 km/h 0.0 mm Extreme 63
7 Jan 36.7 °C 10 % 41 km/h 0.0 mm Extreme 62
8 Jan 37.8 °C 10 % 40 km/h 0.0 mm Extreme 62
9 Jan 38.6 °C 12 % 36 km/h 0.0 mm Extreme 59
10 Jan 38.9 °C 13 % 39 km/h 0.0 mm Extreme 62
11 Jan 38.8 °C 14 % 45 km/h 0.0 mm Extreme 67
12 Jan 37.4 °C 13 % 42 km/h 0.0 mm Extreme 64
13 Jan 37.6 °C 13 % 38 km/h 0.0 mm Extreme 61
14 Jan 38.4 °C 11 % 40 km/h 0.0 mm Extreme 63
15 Jan 37.3 °C 11 % 49 km/h 0.0 mm Very extreme 72
16 Jan 36.4 °C 11 % 42 km/h 0.0 mm Extreme 67
17 Jan 36.6 °C 16 % 41 km/h 0.0 mm Extreme 62
18 Jan 35.5 °C 12 % 41 km/h 0.0 mm Extreme 61
19 Jan 36.7 °C 7 % 38 km/h 0.0 mm Extreme 61
20 Jan after 36.8 °C 8 % 43 km/h 0.0 mm Extreme 65
21 Jan after 37.3 °C 10 % 44 km/h 0.0 mm Extreme 67
22 Jan after 38.5 °C 10 % 34 km/h 0.0 mm Extreme 58
23 Jan after 39.2 °C 12 % 36 km/h 0.0 mm Extreme 59
24 Jan after 38.9 °C 13 % 40 km/h 0.0 mm Extreme 63
25 Jan after 38.5 °C 13 % 39 km/h 0.0 mm Extreme 63
26 Jan after 35.9 °C 11 % 49 km/h 0.0 mm Very extreme 74
27 Jan after 34.0 °C 9 % 42 km/h 0.0 mm Extreme 68
28 Jan after 35.9 °C 10 % 41 km/h 0.0 mm Extreme 67

Before and after, from space

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

Before · 30 Dec 2023
After · 26 Jan 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 14 January 2024 the air beside the fire reached 49 µg/m³ of PM2.5. That day averaged 31: 2.0 times the WHO daily guideline (15).

PM2.5 peak49 µg/m³
Days over the guideline11 days
PM10108 µg/m³
Optical depth0.75
456789101112131415161718192021
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 · 279Every 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 South Sudan ›

Frequently asked questions

How long did the Nyirol fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 6 January 2024 to 19 January 2024 (14 days). The perimeter dates it from 6 January 2024 to 18 January 2024.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 8,646 hectares (86.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Nyirol (6,325 ha, 0.9 %); Canal/Pigi (2,110 ha, 0.5 %); Ayod (269 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 38.9 °C, humidity dropped to 10 % and gusts hit 49 km/h. The fire danger index (FWI) reached 72, class Very extreme.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of South Sudan (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

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 18 January 2024 → 19 January 2024.

RSS Changes to this page

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 adjusted with the VIIRS detections inside the perimeter, which said 6 January 2024 to 18 January 2024. 279 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 ADM2 (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.