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Rivungo fire, 10 August 2017 Rivungo

Out · last detection 20 Aug 2017, 11:50 UTC

The fire started on 10 August 2017 in Rivungo, Angola, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 7,471 hectares from heat detections, spread across a single municipality.

It is the 334th largest in Cuando Cubango since 2016 (of 659 with a page). Number 58 in Angola in 2017, of 158.

Burnt area
7,471ha
GWIS perimeter (Copernicus)
Duration
10days
10 Aug 2017 – 19 Aug 2017
Municipalities hit
1
municipalities
Started on
10 Aug
2017
Heat detections
300
in a single hotspot: 105 MW
Danger at start
41
Very high · FWI index
Energy released
2.5GW
sum of detected power

Where it burned

20 Aug 2017
HOTSPOTS BY DAY 10 Aug19 Aug

How it evolved, day by day

1011121314151617181920

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
37km/h · peak gust
13%lowest humidity

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

This area had burned before

4% of the perimeter overlaps earlier fires recorded since 2016: 330 ha in 2016.

What happened to each town

  1. Rivungo where it started
    7,532 ha reached on 8 Aug
    0.3 %

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)
10 Aug 26.0 °C 19 % 37 km/h 0.0 mm Very high 41
11 Aug 26.6 °C 18 % 36 km/h 0.0 mm Very high 40
12 Aug 27.6 °C 19 % 32 km/h 0.0 mm Very high 39
13 Aug 28.4 °C 19 % 33 km/h 0.0 mm Very high 39
14 Aug 28.5 °C 18 % 35 km/h 0.0 mm Very high 42
15 Aug 28.6 °C 18 % 31 km/h 0.0 mm Very high 38
16 Aug 30.0 °C 17 % 23 km/h 0.0 mm Very high 39
17 Aug 29.7 °C 13 % 34 km/h 0.0 mm Very high 50
18 Aug 25.0 °C 15 % 37 km/h 0.0 mm Very high 49
19 Aug 29.1 °C 14 % 28 km/h 0.0 mm Very high 43
20 Aug after 29.3 °C 24 % 31 km/h 0.0 mm Very high 41
21 Aug after 29.3 °C 21 % 35 km/h 0.0 mm Very high 44
22 Aug after 29.7 °C 21 % 24 km/h 0.0 mm Very high 38
23 Aug after 31.3 °C 14 % 30 km/h 0.0 mm Very high 44
24 Aug after 32.8 °C 11 % 22 km/h 0.0 mm Very high 44
25 Aug after 33.4 °C 11 % 32 km/h 0.0 mm Very high 48
26 Aug after 33.3 °C 11 % 31 km/h 0.0 mm Very high 46
27 Aug after 33.2 °C 15 % 37 km/h 0.0 mm Extreme 52
28 Aug after 31.7 °C 13 % 46 km/h 0.0 mm Extreme 58
29 Aug after 31.3 °C 15 % 44 km/h 0.0 mm Extreme 58

Before and after, from space

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

Before · 3 Aug 2017
After · 26 Aug 2017

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 · 300Every 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 Angola ›

Frequently asked questions

How long did the Rivungo fire last?
GWIS (Copernicus) dates it between 10 August 2017 and 19 August 2017: 10 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 7,471 hectares (74.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Rivungo (7,532 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 30.0 °C, humidity dropped to 13 % and gusts hit 37 km/h. The fire danger index (FWI) reached 50, class Very high.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Angola (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 (Public Domain). 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.