Burned area
satellite only13,040ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 2 Sept 2022 – 15 Sept 2022
+− cross-check
No official record is matched to this page to compare it with.
AO · Angola · –
Rivungo fire, 2 September 2022 Rivungo
Out · last detection 15 Sept 2022, 11:25 UTC
The fire started on 2 September 2022 in Rivungo, Angola, and satellites saw it burning for 14 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 13,040 hectares from heat detections, spread across a single municipality.
It is the 82th largest in Cuando Cubango since 2016 (of 504 with a page). Number 12 in Angola in 2022, of 143.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-27matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only14days
2 Sept 2022 to 15 Sept 2022: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 15 Sept 2022, 11:25 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only2 Sept 2022
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 2 Sept 2022
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
The worst day
satellite only1,733MW
Total radiative power on 5 September 2022; hotspots that day: 45.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 5 Sept 2022
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model45.6FWI · very high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 60.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 2 Sept 2022, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model35.1°C · 12% RH
High of 35.1 °C and minimum humidity of 12% on 6 September 2022; gusts of 46 km/h on 14 September 2022.
- Source
- weather model at the fire’s grid cell
- Date
- 2 Sept 2022 – 15 Sept 2022
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
logStart date: 31 August 2022 → 2 September 2022.
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
logStart date: 2 September 2022 → 31 August 2022.
-
· reconstructed GHSLPopulation and built-up area computed
Area logged each night
Move the slider to see which area the page published each day.
Versioned permanent link
https://worldfires.org/en/fire/rivungo-2022-09-3?v=2026-10-27A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire rivungo-2022-09-3.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022-09-02 | 17 | 294 | 27.6 | 13.9 | 21 | 18.2 | 40.7 | 0 | 45.6 | muy_alto | 1 |
| 2022-09-03 | 8 | 112 | 28 | 8.5 | 20 | 10.5 | 27 | 0 | 38.3 | muy_alto | 1 |
| 2022-09-04 | 9 | 206 | 32 | 10.4 | 20 | 13.5 | 32 | 0 | 41.5 | muy_alto | 1 |
| 2022-09-05 | 45 | 1,733 | 34.1 | 14.2 | 16 | 11.2 | 28.1 | 0 | 41.3 | muy_alto | 1 |
| 2022-09-06 | 31 | 132 | 35.1 | 18.4 | 12 | 15.4 | 34.2 | 0 | 50 | extremo | 1 |
| 2022-09-07 | 28 | 174 | 33.9 | 15.2 | 15 | 20.7 | 43.9 | 0 | 56.9 | extremo | 1 |
| 2022-09-08 | 37 | 296 | 32.3 | 17.8 | 17 | 16 | 36.4 | 0 | 50.9 | extremo | 1 |
| 2022-09-09 | 66 | 1,380 | 32.4 | 16.7 | 18 | 18.8 | 40 | 0 | 53.6 | extremo | 1 |
| 2022-09-10 | 76 | 1,146 | 32.7 | 14.4 | 12 | 16.4 | 39.2 | 0 | 51.1 | extremo | 1 |
| 2022-09-11 | 35 | 331 | 33.6 | 12.9 | 12 | 13.3 | 30.2 | 0 | 47.9 | muy_alto | 1 |
| 2022-09-12 | 15 | 105 | 34.2 | 12.1 | 11 | 12 | 27 | 0 | 47.4 | muy_alto | 1 |
| 2022-09-13 | 20 | 119 | 34.2 | 13.6 | 13 | 16.5 | 40.7 | 0 | 52.9 | extremo | 1 |
| 2022-09-14 | 11 | 42 | 32.9 | 19.3 | 17 | 22.1 | 45.7 | 0 | 59.6 | extremo | 1 |
| 2022-09-15 | 2 | 6 | 30.8 | 17.4 | 16 | 19 | 38.2 | 0 | 55 | extremo | 1 |
| 2022-09-16 | 0 | 0 | 31 | 16.9 | 16 | 16.3 | 36.4 | 0 | 51.8 | extremo | 0 |
| 2022-09-17 | 0 | 0 | 32 | 12.5 | 16 | 12 | 29.9 | 0 | 47.1 | muy_alto | 0 |
| 2022-09-18 | 0 | 0 | 33.6 | 16.3 | 16 | 10.9 | 28.4 | 0 | 46.2 | muy_alto | 0 |
| 2022-09-19 | 0 | 0 | 34.8 | 18.8 | 21 | 17.9 | 38.9 | 0 | 52.6 | extremo | 0 |
| 2022-09-20 | 0 | 0 | 31.8 | 18.9 | 17 | 18.8 | 39.2 | 0 | 54 | extremo | 0 |
| 2022-09-21 | 0 | 0 | 32.1 | 17.3 | 12 | 17.5 | 37.4 | 0 | 52.7 | extremo | 0 |
| 2022-09-22 | 0 | 0 | 33.7 | 14.3 | 8 | 13.4 | 32.4 | 0 | 51.8 | extremo | 0 |
| 2022-09-23 | 0 | 0 | 35.5 | 14.9 | 14 | 13.3 | 31.7 | 0 | 52 | extremo | 0 |
| 2022-09-24 | 0 | 0 | 35.9 | 21 | 15 | 16.4 | 33.1 | 0 | 56.1 | extremo | 0 |
| 2022-09-25 | 0 | 0 | 35.2 | 22.5 | 14 | 22.6 | 46.8 | 0 | 64.8 | extremo | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 13,040ha
- GWIS perimeter (Copernicus)
- Duration
- 14days
- 2 Sept 2022 – 15 Sept 2022
- Municipalities hit
- 1
- municipalities
- Started on
- 2 Sept
- 2022
- Heat detections
- 400
- in a single hotspot: 0 MW
- Danger at start
- 46
- Very high · FWI index
- Average daily power
- 434MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
2 Sept15 Sept
15 Sept 2022
How it evolved, day by day
2 Sept
5 Sept
8 Sept
11 Sept
14 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
35°high
46km/h · peak gust
11%lowest humidity
It had gone more than two months without rain (1 mm or more) when it started.
This area had burned before
82% of the perimeter overlaps earlier fires recorded since 2016: 5,371 ha in 2016, 1,273 ha in 2017, 5,151 ha in 2019, 1,904 ha in 2020, 2,601 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 10,633 ha that had burned before.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
Rivungo where it started13,115 ha0.5 %
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 2020Built-up area< 0.1 ha
Residents< 20
Inside the perimeter there was no noticeable built-up land and almost nobody lived there (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: 84 % of the area in Angola
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 2 Sept | 27.6 °C | 21 % | 41 km/h | 0.0 mm | Very high 46 |
| 3 Sept | 28.0 °C | 20 % | 27 km/h | 0.0 mm | Very high 38 |
| 4 Sept | 32.0 °C | 20 % | 32 km/h | 0.0 mm | Very high 42 |
| 5 Sept | 34.1 °C | 16 % | 28 km/h | 0.0 mm | Very high 41 |
| 6 Sept | 35.1 °C | 12 % | 34 km/h | 0.0 mm | Extreme 50 |
| 7 Sept | 33.9 °C | 15 % | 44 km/h | 0.0 mm | Extreme 57 |
| 8 Sept | 32.3 °C | 17 % | 36 km/h | 0.0 mm | Extreme 51 |
| 9 Sept | 32.4 °C | 18 % | 40 km/h | 0.0 mm | Extreme 54 |
| 10 Sept | 32.7 °C | 12 % | 39 km/h | 0.0 mm | Extreme 51 |
| 11 Sept | 33.6 °C | 12 % | 30 km/h | 0.0 mm | Very high 48 |
| 12 Sept | 34.2 °C | 11 % | 27 km/h | 0.0 mm | Very high 47 |
| 13 Sept | 34.2 °C | 13 % | 41 km/h | 0.0 mm | Extreme 53 |
| 14 Sept | 32.9 °C | 17 % | 46 km/h | 0.0 mm | Extreme 60 |
| 15 Sept | 30.8 °C | 16 % | 38 km/h | 0.0 mm | Extreme 55 |
| 16 Sept after | 31.0 °C | 16 % | 36 km/h | 0.0 mm | Extreme 52 |
| 17 Sept after | 32.0 °C | 16 % | 30 km/h | 0.0 mm | Very high 47 |
| 18 Sept after | 33.6 °C | 16 % | 28 km/h | 0.0 mm | Very high 46 |
| 19 Sept after | 34.8 °C | 21 % | 39 km/h | 0.0 mm | Extreme 53 |
| 20 Sept after | 31.8 °C | 17 % | 39 km/h | 0.0 mm | Extreme 54 |
| 21 Sept after | 32.1 °C | 12 % | 37 km/h | 0.0 mm | Extreme 53 |
| 22 Sept after | 33.7 °C | 8 % | 32 km/h | 0.0 mm | Extreme 52 |
| 23 Sept after | 35.5 °C | 14 % | 32 km/h | 0.0 mm | Extreme 52 |
| 24 Sept after | 35.9 °C | 15 % | 33 km/h | 0.0 mm | Extreme 56 |
| 25 Sept after | 35.2 °C | 14 % | 47 km/h | 0.0 mm | Extreme 65 |
Its twins: fires that started in the same weather
It started with an FWI of 45.6, a minimum humidity of 21% and more than two months without rain. Fires in the area that started in weather like this since 2016: 33.
FWI at the start
45.6
Minimum humidity
21 %
Days without rain
60+
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Rivungo fire, 2 September 2022
13,040 ha
14 days
FWI 45.6
Min. humidity 21 %
Sesheke fire, August 2019
3,891 ha
10 days
FWI 44.9
Min. humidity 21 %
162 km away, in 2019
First rain (1 mm or more) after it ended: none in the following ten days.
Dirico fire, September 2021
12,969 ha
11 days
FWI 44.2
Min. humidity 21 %
132 km away, in 2021
First rain (1 mm or more) after it ended: none in the following ten days.
Dirico fire, September 2019
19,465 ha
16 days
FWI 45.6
Min. humidity 19 %
77 km away, in 2019
First rain (1 mm or more) after it ended: none in the following ten days.
Mavinga fire, August 2023
5,447 ha
14 days
FWI 46.5
Min. humidity 22 %
100 km away, in 2023
First rain (1 mm or more) after it ended: none in the following ten days.
Dirico fire, September 2019
5,007 ha
11 days
FWI 46.7
Min. humidity 20 %
107 km away, in 2019
First rain (1 mm or more) after it ended: none in the following ten days.
What happened to them
- 12 days
- median duration
- 6,014 ha
- median area
- 21 %
- went past 10,000 ha
- —
- rain at the end (median; 0 of 33 had it)
It was 2.2 times larger than the median of its twins and lasted 14 days, against 12 days.
Only 4 of its 33 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 none of them did 1 mm fall in the ten days after the end: they all went out without rain.
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
46km/h · max. gust
It was considered over on 15 Sept, and not even 1 mm fell in the following ten days: it went out without rain. None of its 33 twins had rain when they ended.
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.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 26 Aug 2022
After · 22 Sept 2022
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 · CopernicusOn 5 September 2022 the air beside the fire reached 58 µg/m³ of PM2.5. That day averaged 34: 2.3 times the WHO daily guideline (15).
PM2.5 peak58 µg/m³
Days over the guideline9 days
PM1083 µg/m³
Optical depth0.80
WHO 15
31 Aug4 Sept8 Sept12 Sept16 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 · 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 time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Rivungo fire last?
- GWIS (Copernicus) dates it between 2 September 2022 and 15 September 2022: 14 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 13,040 hectares (130.4 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Rivungo (13,115 ha, 0.5 %).
- What was the weather like?
- During the fire the temperature reached 35.1 °C, humidity dropped to 11 % and gusts hit 46 km/h. The fire danger index (FWI) reached 60, class Extreme.
- 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.
- 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: 33. Their median duration was 12 days and their median area 6,014 ha; 21 % went past 10,000 ha. Only 4 of its 33 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 none of them did 1 mm fall in the ten days after the end: they all went out without rain.
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.
- Start date: 31 August 2022 → 2 September 2022.
- Start date: 2 September 2022 → 31 August 2022.
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.
Report an error
How we know this
- Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
- 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.
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.