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Ezo fire, 31 December 2023 Ezo

Out · last detection 21 Jan 2024, 10:47 UTC

The fire started on 31 December 2023 in Ezo, South Sudan, and satellites saw it burning for 21 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 26,389 hectares from heat detections, spread across a single municipality.

It is the 37th largest in Western Equatoria since 2016 (of 361 with a page). Number 6 in South Sudan in 2023, of 110.

Compare with…
Burnt area
26,389ha
GWIS perimeter (Copernicus)
Duration
21days
31 Dec 2023 – 20 Jan 2024
Municipalities hit
1
counties
Started on
31 Dec
2023
Heat detections
1,460
in a single hotspot: 105 MW
Danger at start
44
Very high · FWI index
Average daily power
563MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 31 Dec20 Jan
21 Jan 2024

How it evolved, day by day

31 Dec 2023 · 411 MW · 40 1 Jan 2024 · 284 MW · 42 2 Jan 2024 · 689 MW · 56 3 Jan 2024 · 72 MW · 5 4 Jan 2024 · 817 MW · 91 5 Jan 2024 · 275 MW · 48 6 Jan 2024 · 460 MW · 51 7 Jan 2024 · 541 MW · 105 8 Jan 2024 · 2,098 MW · 187 9 Jan 2024 · 928 MW · 162 10 Jan 2024 · 250 MW · 56 11 Jan 2024 · 542 MW · 77 12 Jan 2024 · 3,044 MW · 219 13 Jan 2024 · 586 MW · 100 14 Jan 2024 · 596 MW · 113 15 Jan 2024 · 555 MW · 76 16 Jan 2024 · 125 MW · 20 17 Jan 2024 · 46 MW · 2 18 Jan 2024 · 2 MW · 1 19 Jan 2024 · 40 MW · 6 20 Jan 2024 · 16 MW · 2 21 Jan 2024 · 3 MW · 1
31 Dec 4 Jan 8 Jan 12 Jan 16 Jan 20 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

37°high
36km/h · peak gust
9%lowest humidity

It had gone 27 days without rain (1 mm or more) when it started.

This area had burned before

97% of the perimeter overlaps earlier fires recorded since 2016: 13,412 ha in 2016, 11,271 ha in 2017, 2,989 ha in 2018, 11,967 ha in 2019, 12,247 ha in 2020, 10,132 ha in 2021, 15,418 ha in 2022, 778 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 25,724 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 17% of the area of London (264 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. Ezo where it started
    26,585 ha reached on 31 Dec
    3.3 %

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)
31 Dec 35.6 °C 16 % 34 km/h 0.0 mm Very high 44
1 Jan 35.0 °C 16 % 30 km/h 0.0 mm Very high 42
2 Jan 36.0 °C 17 % 33 km/h 0.0 mm Very high 45
3 Jan 35.7 °C 14 % 35 km/h 0.0 mm Very high 46
4 Jan 35.7 °C 12 % 32 km/h 0.0 mm Very high 46
5 Jan 34.6 °C 12 % 24 km/h 0.0 mm Very high 41
6 Jan 34.8 °C 13 % 33 km/h 0.0 mm Very high 47
7 Jan 34.8 °C 12 % 34 km/h 0.0 mm Very high 48
8 Jan 36.0 °C 13 % 27 km/h 0.0 mm Very high 44
9 Jan 36.2 °C 15 % 31 km/h 0.0 mm Very high 47
10 Jan 36.3 °C 16 % 31 km/h 0.0 mm Very high 47
11 Jan 36.5 °C 17 % 36 km/h 0.0 mm Extreme 51
12 Jan 35.9 °C 16 % 32 km/h 0.0 mm Extreme 50
13 Jan 35.1 °C 15 % 21 km/h 0.0 mm Very high 42
14 Jan 36.9 °C 13 % 30 km/h 0.0 mm Very high 49
15 Jan 35.7 °C 13 % 34 km/h 0.0 mm Extreme 52
16 Jan 35.0 °C 11 % 35 km/h 0.0 mm Extreme 53
17 Jan 33.4 °C 11 % 28 km/h 0.0 mm Extreme 51
18 Jan 34.5 °C 11 % 30 km/h 0.0 mm Very high 50
19 Jan 34.9 °C 11 % 28 km/h 0.0 mm Extreme 51
20 Jan 35.0 °C 9 % 36 km/h 0.0 mm Extreme 54
21 Jan after 35.3 °C 9 % 34 km/h 0.0 mm Extreme 54
22 Jan after 36.4 °C 10 % 23 km/h 0.0 mm Very high 48
23 Jan after 36.9 °C 12 % 22 km/h 0.0 mm Very high 46
24 Jan after 37.2 °C 15 % 24 km/h 0.0 mm Very high 49
25 Jan after 37.1 °C 15 % 22 km/h 0.0 mm Very high 49
26 Jan after 35.4 °C 14 % 36 km/h 0.0 mm Extreme 56
27 Jan after 34.0 °C 13 % 35 km/h 0.0 mm Extreme 56
28 Jan after 33.1 °C 13 % 37 km/h 0.0 mm Extreme 56
29 Jan after 34.7 °C 11 % 34 km/h 0.0 mm Extreme 53
30 Jan after 36.3 °C 13 % 35 km/h 0.0 mm Extreme 55

Before and after, from space

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

Before · 24 Dec 2023
After · 27 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 5 January 2024 the air beside the fire reached 126 µg/m³ of PM2.5. That day averaged 71: 4.8 times the WHO daily guideline (15).

PM2.5 peak126 µg/m³
Days over the guideline15 days
PM10180 µg/m³
Optical depth1.40
5678910111213141516171819
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 · 1,460Every 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 Ezo fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 31 December 2023 to 20 January 2024 (21 days). The perimeter dates it from 7 January 2024 to 16 January 2024.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 26,389 hectares (263.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Ezo (26,585 ha, 3.3 %).
What was the weather like?
During the fire the temperature reached 36.9 °C, humidity dropped to 9 % and gusts hit 36 km/h. The fire danger index (FWI) reached 54, 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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 16 January 2024 → 20 January 2024.
  2. Start date: 7 January 2024 → 31 December 2023.

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; 2 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 7 January 2024 to 16 January 2024. 1,460 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 (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.