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MZ · Mozambique · –

Mocuba fire, 9 September 2020 Milange, Lugela, Mocuba

Out · last detection 11 Oct 2020, 11:24 UTC

The fire started on 9 September 2020 in Mocuba, Mozambique, and satellites saw it burning for 33 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 41,024 hectares from heat detections, spread across 3 municipalities.

It is the 16th largest in Zambézia since 2016 (of 562 with a page). Number 3 in Mozambique in 2020, of 193.

Compare with…
Burnt area
41,024ha
GWIS perimeter (Copernicus)
Duration
33days
9 Sept 2020 – 11 Oct 2020
Municipalities hit
3
districts
Started on
9 Sept
2020
Heat detections
2,403
in a single hotspot: 137 MW
Danger at start
22
High · FWI index
Average daily power
831MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 9 Sept11 Oct
11 Oct 2020

How it evolved, day by day

9 Sept 2020 · 29 MW · 3 10 Sept 2020 · 29 MW · 5 11 Sept 2020 · 4 MW · 1 13 Sept 2020 · 182 MW · 16 14 Sept 2020 · 122 MW · 17 15 Sept 2020 · 257 MW · 35 16 Sept 2020 · 376 MW · 24 17 Sept 2020 · 635 MW · 64 18 Sept 2020 · 1,303 MW · 101 19 Sept 2020 · 575 MW · 69 20 Sept 2020 · 993 MW · 96 21 Sept 2020 · 1,927 MW · 163 22 Sept 2020 · 207 MW · 10 24 Sept 2020 · 497 MW · 35 25 Sept 2020 · 758 MW · 75 26 Sept 2020 · 1,847 MW · 164 27 Sept 2020 · 2,600 MW · 218 28 Sept 2020 · 2,254 MW · 222 29 Sept 2020 · 871 MW · 115 30 Sept 2020 · 778 MW · 104 1 Oct 2020 · 1,110 MW · 119 2 Oct 2020 · 1,955 MW · 117 3 Oct 2020 · 1,510 MW · 157 4 Oct 2020 · 1,226 MW · 125 5 Oct 2020 · 29 MW · 3 6 Oct 2020 · 448 MW · 48 7 Oct 2020 · 701 MW · 70 8 Oct 2020 · 775 MW · 83 9 Oct 2020 · 295 MW · 36 10 Oct 2020 · 525 MW · 42 11 Oct 2020 · 940 MW · 66
9 Sept 17 Sept 27 Sept 2 Oct 9 Oct

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

The weather it burned in

39°high
50km/h · peak gust
19%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 3.3 mm on 12 Oct.

This area had burned before

94% of the perimeter overlaps earlier fires recorded since 2016: 26,868 ha in 2016, 23,451 ha in 2017, 23,373 ha in 2018, 25,595 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 38,624 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 26% of the area of London (410 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. 25,230 ha
    4.6 %
  2. 13,010 ha
    2.1 %
  3. Mocuba where it started
    3,854 ha
    0.4 %

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)

Day High Min. humidity Peak gust Rain Danger (FWI)
9 Sept 28.3 °C 32 % 30 km/h 0.0 mm High 22
10 Sept 30.0 °C 34 % 37 km/h 0.0 mm High 23
11 Sept 28.3 °C 38 % 32 km/h 0.0 mm High 24
12 Sept 28.8 °C 41 % 36 km/h 0.0 mm High 28
13 Sept 30.1 °C 41 % 30 km/h 0.0 mm High 26
14 Sept 33.2 °C 32 % 23 km/h 0.0 mm High 27
15 Sept 34.3 °C 31 % 29 km/h 0.0 mm High 32
16 Sept 34.2 °C 28 % 26 km/h 0.0 mm High 34
17 Sept 35.1 °C 27 % 27 km/h 0.0 mm High 37
18 Sept 32.5 °C 25 % 39 km/h 0.0 mm Very high 45
19 Sept 33.1 °C 26 % 31 km/h 0.0 mm High 36
20 Sept 34.0 °C 23 % 30 km/h 0.0 mm High 38
21 Sept 35.1 °C 21 % 31 km/h 0.0 mm Very high 40
22 Sept 30.2 °C 38 % 45 km/h 0.0 mm Very high 46
23 Sept 27.1 °C 46 % 40 km/h 3.0 mm Low 11
24 Sept 30.3 °C 35 % 26 km/h 0.0 mm High 23
25 Sept 33.6 °C 29 % 23 km/h 0.0 mm High 28
26 Sept 37.1 °C 19 % 47 km/h 0.0 mm Very high 47
27 Sept 37.7 °C 20 % 50 km/h 0.0 mm Very high 48
28 Sept 37.2 °C 25 % 43 km/h 0.0 mm Very high 45
29 Sept 36.1 °C 25 % 27 km/h 0.0 mm Very high 44
30 Sept 34.6 °C 31 % 46 km/h 0.0 mm Very high 40
1 Oct 35.8 °C 27 % 28 km/h 0.0 mm Very high 41
2 Oct 38.0 °C 21 % 45 km/h 0.0 mm Very high 42
3 Oct 36.4 °C 25 % 36 km/h 0.0 mm Very high 45
4 Oct 36.8 °C 30 % 36 km/h 0.0 mm Very high 40
5 Oct 32.4 °C 41 % 35 km/h 0.0 mm Very high 38
6 Oct 28.2 °C 47 % 31 km/h 0.2 mm High 28
7 Oct 30.2 °C 36 % 41 km/h 0.0 mm High 32
8 Oct 30.0 °C 41 % 31 km/h 0.0 mm High 30
9 Oct 33.0 °C 34 % 25 km/h 0.0 mm High 28
10 Oct 38.6 °C 28 % 26 km/h 0.0 mm High 37
11 Oct 35.3 °C 36 % 32 km/h 9.8 mm High 34
12 Oct after 27.6 °C 64 % 33 km/h 3.3 mm Very low 0

Its twins: fires that started in the same weather

It started with an FWI of 21.7, a minimum humidity of 32% and 3 days without rain. Fires in the area that started in weather like this since 2016: 29.

FWI at the start 21.7
Minimum humidity 32 %
Days without rain 3
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Mocuba fire, August 2019
3,219 ha 15 days FWI 23.4 Min. humidity 32 % 53 km away, in 2019

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

What happened to them

15 days
median duration
4,500 ha
median area
3 %
went past 10,000 ha
3.3 mm
rain at the end (median; 25 of 29 had it)

It was 9.1 times larger than the median of its twins and lasted 33 days, against 15 days.

None of its 29 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 4 of 29, 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 3.3 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

3.3 mmfirst rain
12 Octthe day after it ended
50km/h · max. gust

It was considered over on 11 Oct, and on 12 Oct 3.3 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 25 of 29, with a median of 3.3 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 2020
After · 18 Oct 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 · 2,403Every 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 Mozambique

Frequently asked questions

How long did the Mocuba fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 9 September 2020 to 11 October 2020 (33 days). The perimeter dates it from 15 September 2020 to 10 October 2020.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 41,024 hectares (410.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Milange (25,230 ha, 4.6 %); Lugela (13,010 ha, 2.1 %); Mocuba (3,854 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 38.6 °C, humidity dropped to 19 % and gusts hit 50 km/h. The fire danger index (FWI) reached 48, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Mozambique (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: 29. Their median duration was 15 days and their median area 4,500 ha; 3 % went past 10,000 ha. None of its 29 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 4 of 29, 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 3.3 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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 10 October 2020 → 11 October 2020.
  2. Start date: 15 September 2020 → 9 September 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 adjusted with the VIIRS detections inside the perimeter, which said 15 September 2020 to 10 October 2020. 2,403 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 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.