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Rapale fire, September 2021 Rapale, Murrupula

Out · last detection 3 Oct 2021, 22:40 UTC

The fire started on 14 September 2021 in Rapale, Mozambique, and satellites saw it burning for 19 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 17,139 hectares from heat detections, spread across 2 municipalities.

It is the 18th largest in Nampula since 2016 (of 392 with a page). Number 7 in Mozambique in 2021, of 233.

Burnt area
17,139ha
GWIS perimeter (Copernicus)
Duration
19days
14 Sept 2021 – 2 Oct 2021
Municipalities hit
2
districts
Started on
14 Sept
2021
Heat detections
752
in a single hotspot: 82 MW
Danger at start
31
High · FWI index
Energy released
8.6GW
sum of detected power

Where it burned

3 Oct 2021
HOTSPOTS BY DAY 14 Sept2 Oct

How it evolved, day by day

1415161720212224252627282930123

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

The weather it burned in

34°high
45km/h · peak gust
22%lowest humidity

It had gone one day without rain (1 mm or more) when it started.

This area had burned before

95% of the perimeter overlaps earlier fires recorded since 2016: 10,515 ha in 2016, 8,949 ha in 2017, 7,177 ha in 2018, 6,948 ha in 2019, 7,955 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 16,326 ha that had burned before.

What happened to each town

  1. Rapale where it started
    14,880 ha reached on 14 Sept
    4.0 %
  2. 2,356 ha reached on 26 Sept
    0.8 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance is from the town centre 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)
14 Sept 30.7 °C 27 % 35 km/h 0.0 mm High 31
15 Sept 32.4 °C 25 % 32 km/h 0.0 mm High 35
16 Sept 32.8 °C 33 % 33 km/h 0.0 mm High 36
17 Sept 33.1 °C 33 % 35 km/h 0.0 mm High 36
18 Sept 27.6 °C 51 % 42 km/h 0.0 mm High 28
19 Sept 23.9 °C 49 % 42 km/h 1.0 mm Moderate 18
20 Sept 26.9 °C 35 % 34 km/h 0.0 mm High 24
21 Sept 31.8 °C 27 % 32 km/h 0.0 mm High 34
22 Sept 30.6 °C 34 % 36 km/h 0.0 mm High 35
23 Sept 27.1 °C 48 % 36 km/h 0.6 mm High 27
24 Sept 29.2 °C 39 % 31 km/h 0.0 mm High 26
25 Sept 28.9 °C 40 % 32 km/h 0.0 mm High 25
26 Sept 29.9 °C 38 % 37 km/h 0.2 mm High 26
27 Sept 31.1 °C 33 % 33 km/h 0.0 mm High 29
28 Sept 33.5 °C 22 % 38 km/h 0.0 mm Very high 41
29 Sept 33.6 °C 24 % 37 km/h 0.0 mm Very high 39
30 Sept 32.4 °C 33 % 35 km/h 0.0 mm High 36
1 Oct 31.4 °C 34 % 31 km/h 0.0 mm High 35
2 Oct 32.7 °C 32 % 38 km/h 0.0 mm High 37
3 Oct after 32.8 °C 33 % 43 km/h 0.0 mm Very high 40
4 Oct after 33.9 °C 30 % 36 km/h 0.0 mm High 37
5 Oct after 31.4 °C 34 % 31 km/h 0.0 mm High 37
6 Oct after 31.1 °C 38 % 37 km/h 0.0 mm High 34
7 Oct after 30.6 °C 33 % 45 km/h 0.0 mm High 38
8 Oct after 27.7 °C 36 % 38 km/h 0.1 mm High 35
9 Oct after 31.7 °C 28 % 24 km/h 0.0 mm High 33
10 Oct after 33.2 °C 28 % 41 km/h 0.0 mm Very high 38
11 Oct after 30.7 °C 35 % 40 km/h 0.0 mm Very high 40
12 Oct after 26.5 °C 48 % 47 km/h 0.8 mm High 26
13 Oct after 29.9 °C 35 % 30 km/h 0.0 mm High 28
14 Oct after 30.8 °C 39 % 42 km/h 0.0 mm High 30
15 Oct after 34.4 °C 27 % 35 km/h 0.0 mm High 37
16 Oct after 34.6 °C 26 % 44 km/h 0.0 mm Very high 42
17 Oct after 33.6 °C 29 % 44 km/h 0.0 mm Very high 43
18 Oct after 32.1 °C 35 % 40 km/h 0.0 mm Very high 38
19 Oct after 31.2 °C 32 % 41 km/h 0.0 mm Very high 40

Before and after, from space

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

Before · 7 Sept 2021
After · 9 Oct 2021

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 · 752Every 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 Rapale fire last?
GWIS (Copernicus) dates it between 14 September 2021 and 2 October 2021: 19 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 17,139 hectares (171.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Rapale (14,880 ha, 4.0 %); Murrupula (2,356 ha, 0.8 %).
What was the weather like?
During the fire the temperature reached 33.9 °C, humidity dropped to 22 % and gusts hit 45 km/h. The fire danger index (FWI) reached 41, 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.

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

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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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.