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Nagero fire, 2 January 2022 Nagero, Wau

Out · last detection 10 Jan 2022, 23:18 UTC

The fire started on 2 January 2022 in Nagero, South Sudan, and satellites saw it burning for 9 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,519 hectares from heat detections, spread across 2 municipalities.

It is the 159th largest in Western Equatoria since 2016 (of 359 with a page). Number 54 in South Sudan in 2022, of 124.

Compare with…
Burnt area
8,519ha
GWIS perimeter (Copernicus)
Duration
9days
2 Jan 2022 – 10 Jan 2022
Municipalities hit
2
counties
Started on
2 Jan
2022
Heat detections
292
in a single hotspot: 0 MW
Danger at start
53
Extreme · FWI index
Average daily power
173MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 2 Jan10 Jan
10 Jan 2022

How it evolved, day by day

2 Jan 2022 · 173 MW · 21 3 Jan 2022 · 894 MW · 155 4 Jan 2022 · 213 MW · 60 5 Jan 2022 · 38 MW · 5 6 Jan 2022 · 11 MW · 6 7 Jan 2022 · 31 MW · 9 8 Jan 2022 · 197 MW · 33 9 Jan 2022 · 1 MW · 2 10 Jan 2022 · 1 MW · 1
2 Jan 3 Jan 4 Jan 6 Jan 8 Jan 10 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
40km/h · peak gust
11%lowest humidity

It had gone 50 days without rain (1 mm or more) when it started.

This area had burned before

99% of the perimeter overlaps earlier fires recorded since 2016: 6,881 ha in 2016, 4,057 ha in 2017, 3,922 ha in 2018, 5,345 ha in 2019, 2,426 ha in 2020, 33 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 8,464 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 5.4% of the area of London (85 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. Nagero where it started
    8,565 ha
    0.9 %
  2. Wau
    15 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 2020
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2020, 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.

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)
2 Jan 36.7 °C 11 % 32 km/h 0.0 mm Extreme 53
3 Jan 34.5 °C 11 % 40 km/h 0.0 mm Extreme 56
4 Jan 33.5 °C 13 % 36 km/h 0.0 mm Extreme 54
5 Jan 34.8 °C 12 % 34 km/h 0.0 mm Extreme 53
6 Jan 36.2 °C 11 % 34 km/h 0.0 mm Extreme 52
7 Jan 37.6 °C 14 % 35 km/h 0.0 mm Extreme 54
8 Jan 37.7 °C 14 % 33 km/h 0.0 mm Extreme 52
9 Jan 37.7 °C 15 % 30 km/h 0.0 mm Extreme 50
10 Jan 38.7 °C 16 % 28 km/h 0.0 mm Very high 48
11 Jan after 37.2 °C 21 % 27 km/h 0.0 mm Very high 46
12 Jan after 37.9 °C 19 % 32 km/h 0.0 mm Very high 48
13 Jan after 37.5 °C 20 % 29 km/h 0.0 mm Very high 49
14 Jan after 37.0 °C 23 % 34 km/h 0.6 mm Very high 43
15 Jan after 37.0 °C 24 % 31 km/h 0.1 mm Very high 40
16 Jan after 36.9 °C 22 % 28 km/h 0.0 mm Very high 39
17 Jan after 31.0 °C 33 % 34 km/h 0.0 mm Very high 39
18 Jan after 34.2 °C 28 % 24 km/h 0.0 mm High 34
19 Jan after 34.7 °C 12 % 38 km/h 0.0 mm Extreme 51
20 Jan after 32.9 °C 12 % 37 km/h 0.0 mm Extreme 52

Before and after, from space

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

Before · 26 Dec 2021
After · 17 Jan 2022

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

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 Nagero fire last?
GWIS (Copernicus) dates it between 2 January 2022 and 10 January 2022: 9 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 8,519 hectares (85.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Nagero (8,565 ha, 0.9 %); Wau (15 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 38.7 °C, humidity dropped to 11 % and gusts hit 40 km/h. The fire danger index (FWI) reached 56, class 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 · 4 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 13 January 2022 → 10 January 2022.
  2. Start date: 28 December 2021 → 2 January 2022.
  3. Last day with fire: 10 January 2022 → 13 January 2022.
  4. Start date: 2 January 2022 → 28 December 2021.

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 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.
  • 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 2020, 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.