Pirané fire, December 2021 Pirané
The fire started on 27 December 2021 in Pirané, Argentina, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,108 hectares from heat detections, spread across a single municipality.
It is the 336th largest in Formosa since 2016 (of 620 with a page). Number 114 in Argentina in 2021, of 217.
- Burnt area
- 2,108ha
- GWIS perimeter (Copernicus)
- Duration
- 8days
- 27 Dec 2021 – 3 Jan 2022
- Municipalities hit
- 1
- departments
- Started on
- 27 Dec
- 2021
- Heat detections
- 65
- in a single hotspot: 37 MW
- Danger at start
- 23
- High · FWI index
- Energy released
- 554MW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 4 days without rain (1 mm or more) when it started.
This area had burned before
75% of the perimeter overlaps earlier fires recorded since 2016: 151 ha in 2017, 1,544 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 1,588 ha that had burned before.
What happened to each town
-
Pirané where it started2,108 ha reached on 27 Dec0.2 %
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) |
|---|---|---|---|---|---|
| 27 Dec | 36.6 °C | 23 % | 27 km/h | 0.0 mm | High 23 |
| 28 Dec | 36.7 °C | 25 % | 36 km/h | 0.0 mm | High 27 |
| 29 Dec | 38.3 °C | 20 % | 22 km/h | 0.0 mm | High 24 |
| 30 Dec | 39.6 °C | 25 % | 31 km/h | 0.0 mm | High 27 |
| 31 Dec | 38.6 °C | 28 % | 23 km/h | 0.0 mm | High 27 |
| 1 Jan | 40.4 °C | 26 % | 45 km/h | 0.0 mm | High 38 |
| 2 Jan | 35.7 °C | 43 % | 38 km/h | 0.6 mm | High 25 |
| 3 Jan | 31.4 °C | 66 % | 36 km/h | 12.6 mm | Very low 2 |
| 4 Jan after | 35.6 °C | 38 % | 25 km/h | 0.0 mm | Moderate 11 |
| 5 Jan after | 34.7 °C | 44 % | 42 km/h | 0.4 mm | Moderate 19 |
| 6 Jan after | 33.8 °C | 36 % | 36 km/h | 0.0 mm | Moderate 19 |
| 7 Jan after | 35.1 °C | 37 % | 32 km/h | 0.0 mm | Moderate 19 |
| 8 Jan after | 36.6 °C | 28 % | 26 km/h | 0.0 mm | Moderate 21 |
| 9 Jan after | 35.7 °C | 37 % | 39 km/h | 0.4 mm | High 24 |
| 10 Jan after | 35.3 °C | 36 % | 29 km/h | 0.0 mm | High 23 |
| 11 Jan after | 37.1 °C | 28 % | 28 km/h | 0.0 mm | High 24 |
| 12 Jan after | 38.6 °C | 26 % | 24 km/h | 0.0 mm | High 25 |
| 13 Jan after | 38.6 °C | 24 % | 29 km/h | 0.0 mm | High 31 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · 65Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 9,366 haPatiño1 August 2020 · 10 days · 10 km away
- 8,957 haPirané20 August 2020 · 11 days · 14 km away
- 7,625 haPatiño8 November 2023 · 5 days · 15 km away
- 9,964 haPilagás20 August 2020 · 9 days · 22 km away
- 43,200 haPatiño7 January 2022 · 17 days · 26 km away
- 6,751 haPatiño30 September 2020 · 13 days · 32 km away
Frequently asked questions
- How long did the Pirané fire last?
- GWIS (Copernicus) dates it between 27 December 2021 and 3 January 2022: 8 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 2,108 hectares (21.1 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Pirané (2,108 ha, 0.2 %).
- What was the weather like?
- During the fire the temperature reached 40.4 °C, humidity dropped to 20 % and gusts hit 45 km/h. The fire danger index (FWI) reached 38, class High.
- 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
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.
Report an error
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.