Burned area
satellite only5,532ha
Union of 2 GWIS (Copernicus) perimeters: overlapping areas count once.
- Source
- GWIS (Copernicus)
- Date
- 12 Aug 2022 – 6 Sept 2022
+− cross-check
No official record is matched to this page to compare it with.
BR · Brazil · –
Jacareacanga fire, 12 August 2022 Jacareacanga
Out · last detection 6 Sept 2022, 05:04 UTC
The fire started on 12 August 2022 in Jacareacanga, Brazil, and satellites saw it burning for 26 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,532 hectares from heat detections, spread across a single municipality.
We are reviewing this page: some of its data look inconsistent (the place, the dates or the area), so treat them with caution.
Use this data
Compare with…
Use this data
Fire page data · version 2026-11-05matches 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 only26days
12 Aug 2022 to 6 Sept 2022: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 6 Sept 2022, 05:04 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 only12 Aug 2022
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 12 Aug 2022
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only814
VIIRS detections at 375 m. Most intense hotspot: 115 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 12 Aug 2022 – 6 Sept 2022
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only3,845MW
Total radiative power on 14 August 2022; hotspots that day: 151.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 14 Aug 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
model23.0FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 3.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 12 Aug 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 · 36% RH
High of 35.1 °C and minimum humidity of 36% on 31 August 2022; gusts of 36 km/h on 15 August 2022.
- Source
- weather model at the fire’s grid cell
- Date
- 12 Aug 2022 – 6 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
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
logArea: 7,542 → 5,532 ha.
-
logLast day with fire: 5 September 2022 → 6 September 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/jacareacanga-2022-08-2?v=2026-11-05A 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 jacareacanga-2022-08-2.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022-08-12 | 3 | 25 | 32 | 25.6 | 47 | 6.9 | 17.3 | 0 | 23 | alto | 1 |
| 2022-08-13 | 27 | 1,248 | 32.8 | 24.9 | 49 | 8.3 | 28.8 | 0.1 | 23.9 | alto | 1 |
| 2022-08-14 | 151 | 3,845 | 32 | 25.3 | 52 | 10.6 | 34.2 | 1.5 | 24 | alto | 1 |
| 2022-08-15 | 99 | 353 | 32.8 | 22.9 | 50 | 12.1 | 36.4 | 0 | 16.8 | moderado | 1 |
| 2022-08-16 | 83 | 507 | 34.3 | 24 | 40 | 10.5 | 30.2 | 0 | 25.8 | alto | 1 |
| 2022-08-17 | 47 | 329 | 33.1 | 24.4 | 50 | 11 | 25.9 | 0.1 | 26.3 | alto | 1 |
| 2022-08-18 | 24 | 182 | 33.7 | 24.5 | 47 | 8.9 | 29.2 | 0 | 24 | alto | 1 |
| 2022-08-19 | 6 | 28 | 33.4 | 25.3 | 47 | 10.5 | 23.4 | 0 | 24.6 | alto | 1 |
| 2022-08-20 | 33 | 177 | 32.4 | 24.9 | 47 | 10.4 | 20.5 | 0 | 22.8 | alto | 1 |
| 2022-08-21 | 54 | 677 | 33.6 | 24.6 | 32 | 11.4 | 26.3 | 0 | 28.6 | alto | 1 |
| 2022-08-22 | 54 | 275 | 32.3 | 24.7 | 46 | 8.3 | 19.4 | 0 | 23.4 | alto | 1 |
| 2022-08-23 | 8 | 75 | 32.1 | 24.2 | 45 | 7.6 | 20.5 | 0 | 24.2 | alto | 1 |
| 2022-08-24 | 2 | 8 | 33.7 | 26.1 | 45 | 10.6 | 24.5 | 0.1 | 25 | alto | 1 |
| 2022-08-25 | 6 | 9 | 30.6 | 24.6 | 56 | 10.9 | 23.4 | 0.5 | 23.9 | alto | 1 |
| 2022-08-26 | 1 | 3 | 33.2 | 24 | 50 | 8.9 | 24.1 | 0.4 | 26.4 | alto | 1 |
| 2022-08-27 | 17 | 473 | 33.6 | 23.7 | 48 | 8 | 26.6 | 2.2 | 15.9 | moderado | 1 |
| 2022-08-28 | 14 | 73 | 32.4 | 24.4 | 55 | 9.9 | 20.9 | 1.4 | 13.7 | moderado | 1 |
| 2022-08-29 | 33 | 535 | 33.5 | 23.9 | 48 | 9.7 | 27.7 | 0 | 12.5 | moderado | 1 |
| 2022-08-30 | 40 | 616 | 34.1 | 24.4 | 44 | 7.5 | 18.4 | 0 | 14.7 | moderado | 1 |
| 2022-08-31 | 54 | 142 | 35.1 | 25.1 | 36 | 9 | 20.9 | 0 | 22.7 | alto | 1 |
| 2022-09-01 | 7 | 63 | 34 | 24.4 | 48 | 10.4 | 25.2 | 0 | 26.6 | alto | 1 |
| 2022-09-02 | 4 | 22 | 33.4 | 25.4 | 50 | 11.5 | 32 | 0 | 27.6 | alto | 1 |
| 2022-09-03 | 30 | 242 | 33.4 | 24.8 | 44 | 12.7 | 26.3 | 0 | 30.3 | alto | 1 |
| 2022-09-04 | 8 | 25 | 34.3 | 23.6 | 38 | 9.6 | 21.6 | 0 | 25.5 | alto | 1 |
| 2022-09-05 | 3 | 13 | 33.9 | 24.4 | 48 | 9.4 | 26.3 | 0.2 | 27.8 | alto | 1 |
| 2022-09-06 | 6 | 11 | 31.6 | 23.8 | 61 | 13 | 29.9 | 3.9 | 14.1 | moderado | 1 |
| 2022-09-07 | 0 | 0 | 33.3 | 22.3 | 51 | 11.3 | 29.5 | 2 | 8 | bajo | 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
- 5,532ha
- GWIS perimeter (Copernicus)
- Duration
- 26days
- 12 Aug 2022 – 6 Sept 2022
- Municipalities hit
- 1
- municipalities
- Started on
- 12 Aug
- 2022
- Heat detections
- 814
- in a single hotspot: 115 MW
- Danger at start
- 23
- High · FWI index
- Average daily power
- 383MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
12 Aug6 Sept
6 Sept 2022
How it evolved, day by day
14 Aug
24 Aug
30 Aug
5 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
36km/h · peak gust
32%lowest humidity
It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 2.0 mm on 7 Sept.
This area had burned before
100% of the perimeter overlaps earlier fires recorded since 2016: 1,248 ha in 2016, 703 ha in 2017, 2,660 ha in 2019, 5,571 ha in 2020, 2,784 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 5,968 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
-
7,568 ha reached on 12 Aug0.1 %
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 area0.10 ha
Residents< 20
Inside the perimeter there were about 0.10 hectares of 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)
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 12 Aug | 32.0 °C | 47 % | 17 km/h | 0.0 mm | High 23 |
| 13 Aug | 32.8 °C | 49 % | 29 km/h | 0.1 mm | High 24 |
| 14 Aug | 32.0 °C | 52 % | 34 km/h | 1.5 mm | High 24 |
| 15 Aug | 32.8 °C | 50 % | 36 km/h | 0.0 mm | Moderate 17 |
| 16 Aug | 34.3 °C | 40 % | 30 km/h | 0.0 mm | High 26 |
| 17 Aug | 33.1 °C | 50 % | 26 km/h | 0.1 mm | High 26 |
| 18 Aug | 33.7 °C | 47 % | 29 km/h | 0.0 mm | High 24 |
| 19 Aug | 33.4 °C | 47 % | 23 km/h | 0.0 mm | High 25 |
| 20 Aug | 32.4 °C | 47 % | 20 km/h | 0.0 mm | High 23 |
| 21 Aug | 33.6 °C | 32 % | 26 km/h | 0.0 mm | High 29 |
| 22 Aug | 32.3 °C | 46 % | 19 km/h | 0.0 mm | High 23 |
| 23 Aug | 32.1 °C | 45 % | 20 km/h | 0.0 mm | High 24 |
| 24 Aug | 33.7 °C | 45 % | 24 km/h | 0.1 mm | High 25 |
| 25 Aug | 30.6 °C | 56 % | 23 km/h | 0.5 mm | High 24 |
| 26 Aug | 33.2 °C | 50 % | 24 km/h | 0.4 mm | High 26 |
| 27 Aug | 33.6 °C | 48 % | 27 km/h | 2.2 mm | Moderate 16 |
| 28 Aug | 32.4 °C | 55 % | 21 km/h | 1.4 mm | Moderate 14 |
| 29 Aug | 33.5 °C | 48 % | 28 km/h | 0.0 mm | Moderate 12 |
| 30 Aug | 34.1 °C | 44 % | 18 km/h | 0.0 mm | Moderate 15 |
| 31 Aug | 35.1 °C | 36 % | 21 km/h | 0.0 mm | High 23 |
| 1 Sept | 34.0 °C | 48 % | 25 km/h | 0.0 mm | High 27 |
| 2 Sept | 33.4 °C | 50 % | 32 km/h | 0.0 mm | High 28 |
| 3 Sept | 33.4 °C | 44 % | 26 km/h | 0.0 mm | High 30 |
| 4 Sept | 34.3 °C | 38 % | 22 km/h | 0.0 mm | High 26 |
| 5 Sept | 33.9 °C | 48 % | 26 km/h | 0.2 mm | High 28 |
| 6 Sept | 31.6 °C | 61 % | 30 km/h | 3.9 mm | Moderate 14 |
| 7 Sept after | 33.3 °C | 51 % | 30 km/h | 2.0 mm | Low 8 |
Its twins: fires that started in the same weather
It started with an FWI of 23.0, a minimum humidity of 47% and 3 days without rain. Fires in the area that started in weather like this since 2016: 12.
FWI at the start
23.0
Minimum humidity
47 %
Days without rain
3
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Jacareacanga fire, 12 August 2022
5,532 ha
26 days
FWI 23.0
Min. humidity 47 %
Apuí fire, August 2017
3,889 ha
21 days
FWI 25.9
Min. humidity 41 %
191 km away, in 2017
First rain (1 mm or more) after it ended: 1.7 mm on 12 Sept.
Apuí fire, October 2024
4,168 ha
7 days
FWI 12.6
Min. humidity 47 %
186 km away, in 2024
First rain (1 mm or more) after it ended: 2.0 mm on 15 Oct.
Jacareacanga fire, August 2024
5,757 ha
26 days
FWI 34.3
Min. humidity 45 %
3 km away, in 2024
First rain (1 mm or more) after it ended: 1.9 mm on 24 Sept.
Novo Aripuanã fire, August 2025
3,397 ha
19 days
FWI 16.0
Min. humidity 50 %
239 km away, in 2025
First rain (1 mm or more) after it ended: 1.6 mm on 27 Aug.
Novo Aripuanã fire, August 2021
3,823 ha
23 days
FWI 22.1
Min. humidity 39 %
235 km away, in 2021
First rain (1 mm or more) after it ended: 10.5 mm on 28 Aug.
What happened to them
Fires in the area that started in similar weather: 12. With fewer than 15 we give no figures: they would be more noise than signal.
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
2.0 mmfirst rain
7 Septthe day after it ended
36km/h · max. gust
It was considered over on 6 Sept, and on 7 Sept 2.0 mm fell. We do not know whether the rain or the firefighters put it out.
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 · 5 Aug 2022
After · 13 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 30 August 2022 the air beside the fire reached 358 µg/m³ of PM2.5. That day averaged 209: 14 times the WHO daily guideline (15).
PM2.5 peak358 µg/m³
Days over the guideline30 days
PM10510 µg/m³
Optical depth1.93
WHO 15
10 Aug16 Aug22 Aug28 Aug3 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 · 814Every 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
- 5,757 haJacareacanga24 August 2024 · 26 days · 3 km away
- 5,561 haJacareacanga14 August 2026 · 24 days · 6 km away
- 3,871 haJacareacanga12 August 2022 · 18 days · 9 km away
- 5,599 haJacareacanga21 August 2026 · 24 days · 10 km away
- 12,091 haJacareacanga15 August 2026 · 51 days · 12 km away
- 4,464 haJacareacanga9 August 2026 · 25 days · 16 km away
Frequently asked questions
- How long did the Jacareacanga fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 12 August 2022 to 6 September 2022 (26 days). The perimeter dates it from 12 August 2022 to 5 September 2022.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,532 hectares (55.3 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Jacareacanga (7,568 ha, 0.1 %).
- What was the weather like?
- During the fire the temperature reached 35.1 °C, humidity dropped to 32 % and gusts hit 36 km/h. The fire danger index (FWI) reached 30, class High.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Brazil (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.
Emergency number: 193 · Emergency number and official warnings
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.
- Area: 7,542 → 5,532 ha.
- Last day with fire: 5 September 2022 → 6 September 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; 2 polygons grouped in this page.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 12 August 2022 to 5 September 2022. 814 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 (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.