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Kunike fire, 15 March 2020 Kunike

Out · last detection 22 Mar 2020, 15:00 UTC

The fire started on 15 March 2020 in Kunike, Sierra Leone, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,593 hectares from heat detections, spread across a single municipality.

It is the 66th largest in Northern since 2016 (of 1112 with a page). Number 3 in Sierra Leone in 2020, of 147.

Compare with…
Burnt area
3,593ha
GWIS perimeter (Copernicus)
Duration
8days
15 Mar 2020 – 22 Mar 2020
Municipalities hit
1
chiefdoms
Started on
15 Mar
2020
Heat detections
125
in a single hotspot: 257 MW
Danger at start
26
High · FWI index
Average daily power
658MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 15 Mar22 Mar
22 Mar 2020

How it evolved, day by day

17 Mar 2020 · 346 MW · 12 18 Mar 2020 · 1,559 MW · 46 19 Mar 2020 · 1,304 MW · 38 20 Mar 2020 · 17 MW · 3 21 Mar 2020 · 693 MW · 13 22 Mar 2020 · 28 MW · 2
17 Mar 18 Mar 19 Mar 20 Mar 21 Mar 22 Mar

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

The weather it burned in

38°high
40km/h · peak gust
23%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 1.9 mm on 25 Mar.

This area had burned before

40% of the perimeter overlaps earlier fires recorded since 2016: 32 ha in 2016, 513 ha in 2017, 163 ha in 2018, 755 ha in 2019.

How big is it?

10 km
It burned the equivalent of 2.3% of the area of London (36 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. Kunike where it started
    3,616 ha reached on 14 Mar
    4.5 %

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 area2.3 ha
Residents≈ 900

Inside the perimeter there were about 2.3 hectares of built-up land and about 900 residents (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)
15 Mar 34.5 °C 34 % 40 km/h 0.0 mm High 26
16 Mar 35.2 °C 31 % 33 km/h 0.0 mm High 25
17 Mar 37.4 °C 30 % 35 km/h 0.0 mm High 28
18 Mar 34.8 °C 35 % 33 km/h 0.0 mm High 27
19 Mar 36.2 °C 25 % 30 km/h 0.0 mm High 30
20 Mar 38.3 °C 23 % 33 km/h 0.0 mm High 33
21 Mar 37.0 °C 23 % 35 km/h 0.0 mm High 35
22 Mar 37.2 °C 32 % 35 km/h 0.0 mm High 35
23 Mar after 31.4 °C 45 % 26 km/h 0.2 mm High 24
24 Mar after 32.8 °C 47 % 30 km/h 0.8 mm Moderate 18
25 Mar after 33.1 °C 45 % 22 km/h 1.9 mm Low 10

Before and after, from space

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

Before · 8 Mar 2020
After · 29 Mar 2020

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 · 125Every 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 Kunike fire last?
GWIS (Copernicus) dates it between 15 March 2020 and 22 March 2020: 8 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 3,593 hectares (35.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Kunike (3,616 ha, 4.5 %).
What was the weather like?
During the fire the temperature reached 38.3 °C, humidity dropped to 23 % and gusts hit 40 km/h. The fire danger index (FWI) reached 35, class High.
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. 125 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 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.