Nwoya fire, 16 January 2018 Nwoya
The fire started on 16 January 2018 in Nwoya, Uganda, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,027 hectares from heat detections, spread across a single municipality.
It is the 1298th largest in Northern Region since 2016 (of 1377 with a page). Number 80 in Uganda in 2018, of 82.
The power measured by the satellite is low (11.8 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
- 1,027ha
- GWIS perimeter (Copernicus)
- Duration
- 4days
- 16 Jan 2018 – 19 Jan 2018
- Municipalities hit
- 1
- counties
- Started on
- 16 Jan
- 2018
- Heat detections
- 31
- in a single hotspot: 12 MW
- Energy released
- 150MW
- sum of detected power
Where it burned
How it evolved, day by day
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: 970 ha in 2016, 691 ha in 2017. Part of it burned more than once, so the yearly figures add up to more than the 939 ha that had burned before.
- 691 ha Nwoya fire, January 2017 1,646 ha in total; the hectares shown are those it shares with this fire
- 566 ha Nwoya fire, February 2016 2,429 ha in total; the hectares shown are those it shares with this fire
- 404 ha Nwoya fire, December 2016 6,615 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
Nwoya where it started1,034 ha reached on 16 Jan0.2 %
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.
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 · 31Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Nwoya fire last?
- GWIS (Copernicus) dates it between 16 January 2018 and 19 January 2018: 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 1,027 hectares (10.3 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Nwoya (1,034 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
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.