Skip to content
worldfires
SS · South Sudan · →

Nyirol fire, May 2024 Nyirol, Ulang

Out · last detection 13 May 2024, 10:29 UTC

The fire started on 6 May 2024 in Nyirol, South Sudan, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,808 hectares from heat detections, spread across 2 municipalities.

It is the 328th largest in Jonglei since 2016 (of 428 with a page). Number 129 in South Sudan in 2024, of 180.

Compare with…
Burnt area
5,808ha
GWIS perimeter (Copernicus)
Duration
8days
6 May 2024 – 13 May 2024
Municipalities hit
2
counties
Started on
6 May
2024
Heat detections
187
in a single hotspot: 0 MW
Average daily power
307MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 6 May13 May
13 May 2024

How it evolved, day by day

6 May 2024 · 187 MW · 20 7 May 2024 · 832 MW · 45 8 May 2024 · 83 MW · 12 9 May 2024 · 104 MW · 17 10 May 2024 · 123 MW · 10 11 May 2024 · 840 MW · 52 12 May 2024 · 213 MW · 19 13 May 2024 · 74 MW · 12
6 May 8 May 10 May 11 May 12 May

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

This area had burned before

80% of the perimeter overlaps earlier fires recorded since 2016: 456 ha in 2016, 488 ha in 2017, 2,158 ha in 2019, 1,467 ha in 2022, 4,449 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 4,663 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 3.7% of the area of London (58 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
    5,850 ha
    0.8 %
  2. 0 ha
    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

Before and after, from space

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

Before · 29 Apr 2024
After · 20 May 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 May 2024 the air beside the fire reached 48 µg/m³ of PM2.5. That day averaged 23: 1.5 times the WHO daily guideline (15).

PM2.5 peak48 µg/m³
Days over the guideline6 days
PM1085 µg/m³
Optical depth0.82
45678910111213141516
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 · 0Every 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?
GWIS (Copernicus) dates it between 6 May 2024 and 13 May 2024: 8 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 5,808 hectares (58.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Nyirol (5,850 ha, 0.8 %); Ulang (0 ha, 0.0 %).
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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 30 April 2024 → 6 May 2024.
  2. Start date: 6 May 2024 → 30 April 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.

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. No Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.
  • 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.