Burned area
satellite only5,695ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 26 Sept 2020 – 2 Oct 2020
+− cross-check
No official record is matched to this page to compare it with.
AR · Argentina · –
Tapenagá fire, 26 September 2020 Tapenagá
Out · last detection 2 Oct 2020, 17:35 UTC
The fire started on 26 September 2020 in Tapenagá, Argentina, and satellites saw it burning for 7 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,695 hectares from heat detections, spread across a single municipality.
It is the 9th largest in Chaco since 2016 (of 138 with a page). Number 84 in Argentina in 2020, of 669.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-25matches 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 only7days
26 Sept 2020 to 2 Oct 2020: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 2 Oct 2020, 17:35 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 only26 Sept 2020
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 26 Sept 2020
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only197
VIIRS detections at 375 m. Most intense hotspot: 33 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 26 Sept 2020 – 2 Oct 2020
+− 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 only558MW
Total radiative power on 30 September 2020; hotspots that day: 36.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 30 Sept 2020
+− 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
model71.6FWI · very extreme
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 13.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 26 Sept 2020, 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
model41.6°C · 20% RH
High of 41.6 °C and minimum humidity of 20% on 30 September 2020; gusts of 64 km/h on 27 September 2020.
- Source
- weather model at the fire’s grid cell
- Date
- 26 Sept 2020 – 2 Oct 2020
- 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
-
logStart date: 27 September 2020 → 26 September 2020.
-
· reconstructed GHSLPopulation and built-up area computed
What was saved on 25 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 5,695 ha
- Dates
- 26 Sept 2020 – 2 Oct 2020
- Name
- Tapenagá
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/tapenaga-2020-09-3?v=2026-10-25A 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 tapenaga-2020-09-3.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020-09-26 | 0 | 0 | 40.9 | 29 | 22 | 33.6 | 58 | 0 | 71.6 | muy_extremo | 1 |
| 2020-09-27 | 2 | 9 | 27.5 | 16.9 | 42 | 33.4 | 64.4 | 17 | 1.8 | muy_bajo | 1 |
| 2020-09-28 | 6 | 47 | 25.3 | 11.9 | 31 | 13.1 | 25.2 | 0 | 4.9 | muy_bajo | 1 |
| 2020-09-29 | 0 | 0 | 33.5 | 15 | 21 | 16.9 | 36.4 | 0 | 21.4 | alto | 1 |
| 2020-09-30 | 36 | 558 | 41.6 | 22.9 | 20 | 25.1 | 52.2 | 0 | 46.1 | muy_alto | 1 |
| 2020-10-01 | 78 | 281 | 36.3 | 24.8 | 35 | 24.2 | 45.4 | 0 | 30.2 | alto | 1 |
| 2020-10-02 | 75 | 104 | 23.2 | 15.2 | 45 | 27.5 | 51.5 | 0.6 | 29.3 | alto | 1 |
| 2020-10-03 | 0 | 0 | 15.3 | 10.6 | 64 | 25.6 | 48.6 | 0 | 17.2 | moderado | 0 |
| 2020-10-04 | 0 | 0 | 18.9 | 12.4 | 61 | 17.8 | 34.6 | 0 | 8.2 | bajo | 0 |
| 2020-10-05 | 0 | 0 | 19.2 | 11.6 | 53 | 18.4 | 38.9 | 0 | 13.1 | moderado | 0 |
| 2020-10-06 | 0 | 0 | 25.5 | 9.2 | 36 | 11.9 | 27.4 | 0 | 11.9 | moderado | 0 |
| 2020-10-07 | 0 | 0 | 29.9 | 13.3 | 31 | 16.6 | 35.3 | 0.3 | 22 | alto | 0 |
| 2020-10-08 | 0 | 0 | 32.1 | 16.7 | 25 | 20.1 | 38.5 | 0 | 27.6 | alto | 0 |
| 2020-10-09 | 0 | 0 | 32.1 | 17.3 | 14 | 19.6 | 41 | 0 | 46.3 | muy_alto | 0 |
| 2020-10-10 | 0 | 0 | 33.3 | 14.1 | 19 | 14.1 | 32 | 0 | 36.8 | alto | 0 |
| 2020-10-11 | 0 | 0 | 32.9 | 18.2 | 26 | 20.4 | 32.8 | 0 | 32.8 | alto | 0 |
| 2020-10-12 | 0 | 0 | 31.2 | 16.1 | 21 | 19 | 38.5 | 0 | 44.8 | muy_alto | 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
- 5,695ha
- GWIS perimeter (Copernicus)
- Duration
- 7days
- 26 Sept 2020 – 2 Oct 2020
- Municipalities hit
- 1
- departments
- Started on
- 26 Sept
- 2020
- Heat detections
- 197
- in a single hotspot: 33 MW
- Danger at start
- 72
- Very extreme · FWI index
- Average daily power
- 200MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
26 Sept2 Oct
2 Oct 2020
How it evolved, day by day
27 Sept
28 Sept
30 Sept
1 Oct
2 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
42°high
64km/h · peak gust
20%lowest humidity
It had gone 13 days without rain (1 mm or more) when it started.
This area had burned before
3% of the perimeter overlaps earlier fires recorded since 2016: 166 ha in 2017.
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
-
Tapenagá where it started5,730 ha reached on 27 Sept1.0 %
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 area0.27 ha
Residents< 20
Inside the perimeter there were about 0.27 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)
Started with Strong wind: 25 % of the area in Argentina
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 26 Sept | 40.9 °C | 22 % | 58 km/h | 0.0 mm | Very extreme 72 |
| 27 Sept | 27.5 °C | 42 % | 64 km/h | 17.0 mm | Very low 2 |
| 28 Sept | 25.3 °C | 31 % | 25 km/h | 0.0 mm | Very low 5 |
| 29 Sept | 33.5 °C | 21 % | 36 km/h | 0.0 mm | High 21 |
| 30 Sept | 41.6 °C | 20 % | 52 km/h | 0.0 mm | Very high 46 |
| 1 Oct | 36.3 °C | 35 % | 45 km/h | 0.0 mm | High 30 |
| 2 Oct | 23.2 °C | 45 % | 52 km/h | 0.6 mm | High 29 |
| 3 Oct after | 15.3 °C | 64 % | 49 km/h | 0.0 mm | Moderate 17 |
| 4 Oct after | 18.9 °C | 61 % | 35 km/h | 0.0 mm | Low 8 |
| 5 Oct after | 19.2 °C | 53 % | 39 km/h | 0.0 mm | Moderate 13 |
| 6 Oct after | 25.5 °C | 36 % | 27 km/h | 0.0 mm | Moderate 12 |
| 7 Oct after | 29.9 °C | 31 % | 35 km/h | 0.3 mm | High 22 |
| 8 Oct after | 32.1 °C | 25 % | 38 km/h | 0.0 mm | High 28 |
| 9 Oct after | 32.1 °C | 14 % | 41 km/h | 0.0 mm | Very high 46 |
| 10 Oct after | 33.3 °C | 19 % | 32 km/h | 0.0 mm | High 37 |
| 11 Oct after | 32.9 °C | 26 % | 33 km/h | 0.0 mm | High 33 |
| 12 Oct after | 31.2 °C | 21 % | 38 km/h | 0.0 mm | Very high 45 |
Its twins: fires that started in the same weather
It started with an FWI of 71.6, a minimum humidity of 22% and 13 days without rain. Fires in the area that started in weather like this since 2016: 6.
FWI at the start
71.6
Minimum humidity
22 %
Days without rain
13
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Tapenagá fire, 26 September 2020
5,695 ha
7 days
FWI 71.6
Min. humidity 22 %
Mburucuyá fire, February 2022
3,891 ha
17 days
FWI 63.5
Min. humidity 23 %
190 km away, in 2022
First rain (1 mm or more) after it ended: 1.5 mm on 1 Mar.
Saladas fire, February 2022
4,246 ha
2 days
FWI 66.9
Min. humidity 17 %
132 km away, in 2022
First rain (1 mm or more) after it ended: 1.0 mm on 5 Feb.
San Miguel fire, February 2022
4,591 ha
20 days
FWI 62.2
Min. humidity 22 %
247 km away, in 2022
First rain (1 mm or more) after it ended: 3.2 mm on 7 Mar.
Tapenagá fire, January 2022
7,095 ha
4 days
FWI 61.1
Min. humidity 26 %
27 km away, in 2022
First rain (1 mm or more) after it ended: 1.6 mm on 26 Jan.
9 de Julio fire, September 2021
2,237 ha
1 day
FWI 61.4
Min. humidity 19 %
161 km away, in 2021
First rain (1 mm or more) after it ended: 7.8 mm on 2 Sept.
What happened to them
Fires in the area that started in similar weather: 6. 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
—first rain
—no rain in ten days
64km/h · max. gust
It was considered over on 2 Oct, and not even 1 mm fell in the following ten days: it went out without rain.
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 · 19 Sept 2020
After · 9 Oct 2020
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.
Detections table · 197Every 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 Tapenagá fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 26 September 2020 to 2 October 2020 (7 days). The perimeter dates it from 27 September 2020 to 2 October 2020.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,695 hectares (57.0 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Tapenagá (5,730 ha, 1.0 %).
- What was the weather like?
- During the fire the temperature reached 41.6 °C, humidity dropped to 20 % and gusts hit 64 km/h. The fire danger index (FWI) reached 72, class Very extreme.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Argentina (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: 911 · 100 · Emergency number and official warnings
Satellite cross-check
History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
- Start date: 27 September 2020 → 26 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.
Report an error
How we know this
- Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
- Dates adjusted with the VIIRS detections inside the perimeter, which said 27 September 2020 to 2 October 2020. 197 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.