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ZM · Zambia · –

Kanchibiya fire, 1 September 2020 Kanchibiya, Shiwang'Andu, Kasama

Out · last detection 14 Sept 2020, 22:39 UTC

The fire started on 1 September 2020 in Kanchibiya, Zambia, and satellites saw it burning for 13 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 45,840 hectares from heat detections, spread across 3 municipalities.

It is the 6th largest in Muchinga since 2016 (of 386 with a page). Number 4 in Zambia in 2020, of 229.

Burnt area
45,840ha
GWIS perimeter (Copernicus)
Duration
13days
1 Sept 2020 – 13 Sept 2020
Municipalities hit
3
districts
Started on
1 Sept
2020
Heat detections
2,767
in a single hotspot: 0 MW
Danger at start
42
Very high · FWI index
Average daily power
2.3GW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 1 Sept13 Sept
14 Sept 2020

How it evolved, day by day

1 Sept 2020 · 2,879 MW · 194 2 Sept 2020 · 1,090 MW · 80 3 Sept 2020 · 2,993 MW · 213 4 Sept 2020 · 2,347 MW · 165 5 Sept 2020 · 3,938 MW · 386 6 Sept 2020 · 3,179 MW · 292 7 Sept 2020 · 2,883 MW · 348 8 Sept 2020 · 5,650 MW · 340 9 Sept 2020 · 3,067 MW · 307 10 Sept 2020 · 2,465 MW · 201 11 Sept 2020 · 1,171 MW · 139 12 Sept 2020 · 522 MW · 76 13 Sept 2020 · 178 MW · 22 14 Sept 2020 · 19 MW · 4
1 Sept 4 Sept 8 Sept 13 Sept

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

The weather it burned in

30°high
51km/h · peak gust
22%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 29% of the area of London (458 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. Kanchibiya where it started
    41,166 ha
    4.7 %
  2. 3,638 ha
    0.4 %
  3. 1,270 ha
    0.1 %

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.

People and buildings inside the perimeter

GHSL 2020
Built-up area37 ha
Residents≈ 5,800

Inside the perimeter there were about 37 hectares of built-up land and about 5,800 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)

Started with 60 days without rain: 91 % of the area in Zambia

Day High Min. humidity Peak gust Rain Danger (FWI)
1 Sept 29.7 °C 23 % 45 km/h 0.0 mm Very high 42
2 Sept 26.6 °C 29 % 51 km/h 0.0 mm Very high 42
3 Sept 26.4 °C 30 % 47 km/h 0.0 mm Very high 39
4 Sept 26.2 °C 27 % 35 km/h 0.0 mm High 36
5 Sept 26.1 °C 28 % 41 km/h 0.0 mm Very high 38
6 Sept 26.9 °C 24 % 41 km/h 0.0 mm Very high 40
7 Sept 27.8 °C 23 % 45 km/h 0.0 mm Very high 43
8 Sept 27.2 °C 22 % 46 km/h 0.0 mm Very high 42
9 Sept 25.6 °C 25 % 47 km/h 0.0 mm Very high 42
10 Sept 26.6 °C 28 % 41 km/h 0.0 mm Very high 39
11 Sept 27.7 °C 26 % 43 km/h 0.0 mm Very high 41
12 Sept 26.8 °C 30 % 49 km/h 0.0 mm Very high 43
13 Sept 28.2 °C 33 % 46 km/h 0.0 mm Very high 40
14 Sept after 29.5 °C 26 % 37 km/h 0.0 mm High 36
15 Sept after 30.9 °C 23 % 35 km/h 0.0 mm High 38
16 Sept after 31.6 °C 21 % 34 km/h 0.0 mm Very high 38
17 Sept after 32.6 °C 22 % 37 km/h 0.0 mm Very high 43
18 Sept after 30.6 °C 23 % 46 km/h 0.0 mm Very high 46
19 Sept after 30.2 °C 23 % 39 km/h 0.0 mm Very high 43
20 Sept after 30.9 °C 23 % 37 km/h 0.0 mm Very high 43
21 Sept after 31.7 °C 22 % 36 km/h 0.0 mm Very high 44
22 Sept after 30.6 °C 20 % 42 km/h 0.0 mm Very high 47
23 Sept after 28.0 °C 32 % 51 km/h 0.0 mm Very high 45

Its twins: fires that started in the same weather

It started with an FWI of 41.8, a minimum humidity of 23% and more than two months without rain. Fires in the area that started in weather like this since 2016: 26.

FWI at the start 41.8
Minimum humidity 23 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Kanchibiya fire, September 2023
3,826 ha 5 days FWI 41.8 Min. humidity 24 % 27 km away, in 2023

First rain (1 mm or more) after it ended: none in the following ten days.

What happened to them

8 days
median duration
4,924 ha
median area
35 %
went past 10,000 ha
1.0 mm
rain at the end (median; 1 of 26 had it)

It was 9.3 times larger than the median of its twins and lasted 13 days, against 8 days.

Only 1 of its 26 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 25 of 26, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 1.0 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

—first rain
—no rain in ten days
51km/h · max. gust

It was considered over on 13 Sept, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 1 of 26, with a median of 1.0 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 25 Aug 2020
After · 20 Sept 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 · 0Every 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 Zambia

Frequently asked questions

How long did the Kanchibiya fire last?
GWIS (Copernicus) dates it between 1 September 2020 and 13 September 2020: 13 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 45,840 hectares (458.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Kanchibiya (41,166 ha, 4.7 %); Shiwang'Andu (3,638 ha, 0.4 %); Kasama (1,270 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 29.7 °C, humidity dropped to 22 % and gusts hit 51 km/h. The fire danger index (FWI) reached 43, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Zambia (geoBoundaries). It is not an official report.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 26. Their median duration was 8 days and their median area 4,924 ha; 35 % went past 10,000 ha. Only 1 of its 26 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 25 of 26, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 1.0 mm.

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 · 4 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 20 September 2020 → 13 September 2020.
  2. Start date: 28 August 2020 → 1 September 2020.
  3. Last day with fire: 13 September 2020 → 20 September 2020.
  4. Start date: 1 September 2020 → 28 August 2020.

RSS Changes to this page With cross-checks and a citable version

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; 5 polygons grouped in this page.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. No 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 ADM2 (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.