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ZM · Zambia · –

Kasama fire, 9 September 2024 Lunte, Kasama, Mungwi

Out · last detection 25 Sept 2024, 11:32 UTC

The fire started on 9 September 2024 in Kasama, Zambia, and satellites saw it burning for 17 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 8,456 hectares from heat detections, spread across 3 municipalities.

It is the 68th largest in Northern since 2016 (of 437 with a page). Number 39 in Zambia in 2024, of 160.

Compare with…
Burnt area
8,456ha
GWIS perimeter (Copernicus)
Duration
17days
9 Sept 2024 – 25 Sept 2024
Municipalities hit
3
districts
Started on
9 Sept
2024
Heat detections
349
in a single hotspot: 114 MW
Danger at start
34
High · FWI index
Average daily power
371MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 9 Sept25 Sept
25 Sept 2024

How it evolved, day by day

9 Sept 2024 · 67 MW · 5 10 Sept 2024 · 47 MW · 7 11 Sept 2024 · 2,257 MW · 87 12 Sept 2024 · 1,223 MW · 98 13 Sept 2024 · 448 MW · 34 14 Sept 2024 · 312 MW · 20 15 Sept 2024 · 473 MW · 34 16 Sept 2024 · 139 MW · 15 17 Sept 2024 · 220 MW · 21 18 Sept 2024 · 264 MW · 16 19 Sept 2024 · 51 MW · 5 20 Sept 2024 · 14 MW · 2 21 Sept 2024 · 22 MW · 2 24 Sept 2024 · 7 MW · 1 25 Sept 2024 · 16 MW · 2
11 Sept 15 Sept 18 Sept 21 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

31°high
49km/h · peak gust
19%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 2.1 mm on 1 Oct.

This area had burned before

94% of the perimeter overlaps earlier fires recorded since 2016: 4,270 ha in 2016, 5,100 ha in 2017, 4,909 ha in 2018, 3,708 ha in 2019, 3,240 ha in 2020, 4,855 ha in 2021, 4,251 ha in 2022, 3,529 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 7,939 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 5.3% of the area of London (85 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. 5,260 ha
    0.7 %
  2. Kasama where it started
    3,210 ha
    0.3 %
  3. 30 ha
    0.0 %

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.

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)
9 Sept 29.3 °C 32 % 33 km/h 0.0 mm High 34
10 Sept 30.3 °C 28 % 41 km/h 0.0 mm Very high 46
11 Sept 30.6 °C 23 % 45 km/h 0.0 mm Extreme 54
12 Sept 29.4 °C 25 % 42 km/h 0.0 mm Very high 48
13 Sept 30.5 °C 23 % 38 km/h 0.0 mm Very high 45
14 Sept 30.4 °C 19 % 44 km/h 0.0 mm Extreme 54
15 Sept 29.8 °C 19 % 44 km/h 0.0 mm Extreme 54
16 Sept 29.9 °C 23 % 35 km/h 0.0 mm Very high 44
17 Sept 30.7 °C 25 % 33 km/h 0.0 mm Very high 42
18 Sept 30.7 °C 26 % 35 km/h 0.0 mm Very high 44
19 Sept 31.0 °C 26 % 30 km/h 0.0 mm High 35
20 Sept 30.5 °C 33 % 24 km/h 0.0 mm High 33
21 Sept 30.0 °C 33 % 30 km/h 0.0 mm Very high 40
22 Sept 29.7 °C 22 % 43 km/h 0.0 mm Extreme 53
23 Sept 27.0 °C 33 % 49 km/h 0.0 mm Extreme 59
24 Sept 26.1 °C 44 % 45 km/h 0.8 mm Very high 40
25 Sept 28.7 °C 29 % 40 km/h 0.0 mm Very high 40
26 Sept after 31.0 °C 21 % 33 km/h 0.0 mm Very high 42
27 Sept after 32.1 °C 17 % 31 km/h 0.0 mm Extreme 54
28 Sept after 31.9 °C 20 % 35 km/h 0.0 mm Extreme 58
29 Sept after 31.9 °C 22 % 29 km/h 0.0 mm Very high 39
30 Sept after 31.3 °C 30 % 32 km/h 0.0 mm Very high 43
1 Oct after 31.7 °C 32 % 32 km/h 2.1 mm Very high 39

Its twins: fires that started in the same weather

It started with an FWI of 34.0, a minimum humidity of 32% and more than two months without rain. Fires in the area that started in weather like this since 2016: 49.

FWI at the start 34.0
Minimum humidity 32 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Kasama fire, August 2020
6,917 ha 18 days FWI 33.5 Min. humidity 32 % 61 km away, in 2020

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

What happened to them

17 days
median duration
4,774 ha
median area
14 %
went past 10,000 ha
2.1 mm
rain at the end (median; 5 of 49 had it)

It was 1.8 times larger than the median of its twins and lasted 17 days, against 17 days.

Only 10 of its 49 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 44 of 49, 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 2.1 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

2.1 mmfirst rain
1 Oct6 days after it ended
49km/h · max. gust

It was considered over on 25 Sept, and on 1 Oct 2.1 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 5 of 49, with a median of 2.1 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 · 2 Sept 2024
After · 2 Oct 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 20 September 2024 the air beside the fire reached 70 µg/m³ of PM2.5. That day averaged 40: 2.6 times the WHO daily guideline (15).

PM2.5 peak70 µg/m³
Days over the guideline13 days
PM10101 µg/m³
Optical depth0.90
8 Sept11 Sept14 Sept17 Sept20 Sept
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 · 349Every 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 Kasama fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 9 September 2024 to 25 September 2024 (17 days). The perimeter dates it from 10 September 2024 to 18 September 2024.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 8,456 hectares (84.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Lunte (5,260 ha, 0.7 %); Kasama (3,210 ha, 0.3 %); Mungwi (30 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 31.0 °C, humidity dropped to 19 % and gusts hit 49 km/h. The fire danger index (FWI) reached 59, class Extreme.
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: 49. Their median duration was 17 days and their median area 4,774 ha; 14 % went past 10,000 ha. Only 10 of its 49 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 44 of 49, 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 2.1 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 · 3 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Name: Lunte → Kasama.
  2. Last day with fire: 18 September 2024 → 25 September 2024.
  3. Start date: 10 September 2024 → 9 September 2024.

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; 2 polygons grouped in this page.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 10 September 2024 to 18 September 2024. 349 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.

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.