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Chua fire, 27 December 2024 Chua

Out · last detection 30 Dec 2024, 11:37 UTC

The fire started on 27 December 2024 in Chua, Uganda, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,009 hectares from heat detections, spread across a single municipality.

It is the 1348th largest in Northern Region since 2016 (of 1377 with a page). Number 57 in Uganda in 2024, of 58.

The power measured by the satellite is low (22.8 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
1,009ha
GWIS perimeter (Copernicus)
Duration
4days
27 Dec 2024 – 30 Dec 2024
Municipalities hit
1
counties
Started on
27 Dec
2024
Heat detections
23
in a single hotspot: 23 MW
Energy released
259MW
sum of detected power

Where it burned

30 Dec 2024
HOTSPOTS BY DAY 27 Dec30 Dec

How it evolved, day by day

282930

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

This area had burned before

91% of the perimeter overlaps earlier fires recorded since 2016: 133 ha in 2016, 499 ha in 2017, 473 ha in 2018, 73 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 915 ha that had burned before.

What happened to each town

  1. Chua where it started
    1,015 ha reached on 28 Dec
    0.2 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

Before and after, from space

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

Before · 20 Dec 2024
After · 6 Jan 2025

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 1 January 2025 the air beside the fire reached 89 µg/m³ of PM2.5. That day averaged 33: 2.2 times the WHO daily guideline (15).

PM2.5 peak89 µg/m³
Days over the guideline5 days
PM1092 µg/m³
Optical depth0.53
2526272829303112
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 · 23Every 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 Uganda ›

Frequently asked questions

How long did the Chua fire last?
GWIS (Copernicus) dates it between 27 December 2024 and 30 December 2024: 4 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 1,009 hectares (10.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Chua (1,015 ha, 0.2 %).
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Uganda (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.

Emergency number: 999 · 112

Satellite cross-check

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. This is not an emergency service: if there is a fire now, call 999 · 112.

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 (Public Domain). 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.