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Toli fire, January 2024 Neya, Toli

Out · last detection 26 Jan 2024, 14:17 UTC

The fire started on 22 January 2024 in Toli, Sierra Leone, and satellites saw it burning for 5 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,511 hectares from heat detections, spread across 2 municipalities.

It is the 100th largest in Eastern since 2016 (of 263 with a page). Number 33 in Sierra Leone in 2024, of 140.

Compare with…
Burnt area
1,511ha
GWIS perimeter (Copernicus)
Duration
5days
22 Jan 2024 – 26 Jan 2024
Municipalities hit
2
chiefdoms
Started on
22 Jan
2024
Heat detections
42
in a single hotspot: 32 MW
Average daily power
26MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 22 Jan26 Jan
26 Jan 2024

How it evolved, day by day

22 Jan 2024 · 13 MW · 6 23 Jan 2024 · 17 MW · 9 24 Jan 2024 · 2 MW · 1 25 Jan 2024 · 65 MW · 12 26 Jan 2024 · 32 MW · 10
22 Jan 23 Jan 24 Jan 25 Jan 26 Jan

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

This area had burned before

82% of the perimeter overlaps earlier fires recorded since 2016: 459 ha in 2017, 535 ha in 2018, 695 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 1,245 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1% of the area of London (15 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. 863 ha reached on 23 Jan
    0.6 %
  2. Toli where it started
    642 ha reached on 22 Jan
    6.1 %

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.

Before and after, from space

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

Before · 15 Jan 2024
After · 2 Feb 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 28 January 2024 the air beside the fire reached 167 µg/m³ of PM2.5. That day averaged 131: 8.7 times the WHO daily guideline (15).

PM2.5 peak167 µg/m³
Days over the guideline10 days
PM10244 µg/m³
Optical depth1.48
20212223242526272829
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 · 42Every 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 Sierra Leone ›

Frequently asked questions

How long did the Toli fire last?
GWIS (Copernicus) dates it between 22 January 2024 and 26 January 2024: 5 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 1,511 hectares (15.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Neya (863 ha, 0.6 %); Toli (642 ha, 6.1 %).
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Sierra Leone (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 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

No changes since 24 October 2026.

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. 42 Suomi-NPP VIIRS detections on those dates.
  • We have not matched this page with any official record.

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 ADM3 (Creative Commons Attribution 4.0 (CC BY 4.0)). 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.