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AR · Argentina · –

Patiño fire, 16 August 2022 Patiño

Out · last detection 27 Aug 2022, 17:24 UTC

The fire started on 16 August 2022 in Patiño, Argentina, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,746 hectares from heat detections, spread across a single municipality.

It is the 455th largest in Formosa since 2016 (of 587 with a page). Number 344 in Argentina in 2022, of 441.

Burnt area
1,746ha
GWIS perimeter (Copernicus)
Duration
12days
16 Aug 2022 – 27 Aug 2022
Municipalities hit
1
departments
Started on
16 Aug
2022
Heat detections
108
in a single hotspot: 209 MW
Danger at start
11
Low · FWI index
Average daily power
550MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 16 Aug27 Aug
27 Aug 2022

How it evolved, day by day

16 Aug 2022 · 347 MW · 6 19 Aug 2022 · 77 MW · 2 20 Aug 2022 · 3,481 MW · 39 21 Aug 2022 · 35 MW · 12 24 Aug 2022 · 22 MW · 3 25 Aug 2022 · 130 MW · 11 26 Aug 2022 · 201 MW · 16 27 Aug 2022 · 108 MW · 19
16 Aug 20 Aug 24 Aug 26 Aug

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

38°high
58km/h · peak gust
14%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started.

This area had burned before

50% of the perimeter overlaps earlier fires recorded since 2016: 6 ha in 2017, 1,160 ha in 2020, 8 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 878 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.1% of the area of London (17 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Patiño where it started
    1,746 ha reached on 16 Aug
    0.1 %

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 2020
Built-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)

Day High Min. humidity Peak gust Rain Danger (FWI)
16 Aug 27.9 °C 42 % 48 km/h 3.6 mm Low 11
17 Aug 30.2 °C 56 % 50 km/h 4.7 mm Very low 5
18 Aug 20.6 °C 21 % 58 km/h 1.7 mm Moderate 14
19 Aug 18.4 °C 21 % 34 km/h 0.0 mm Moderate 16
20 Aug 21.0 °C 27 % 30 km/h 0.0 mm Moderate 16
21 Aug 25.2 °C 25 % 25 km/h 0.0 mm Moderate 18
22 Aug 28.5 °C 37 % 30 km/h 0.0 mm Moderate 20
23 Aug 32.5 °C 32 % 41 km/h 0.4 mm High 23
24 Aug 35.2 °C 24 % 39 km/h 0.0 mm High 30
25 Aug 36.7 °C 14 % 44 km/h 0.0 mm Very high 45
26 Aug 37.4 °C 14 % 49 km/h 0.0 mm Very high 49
27 Aug 37.9 °C 14 % 50 km/h 0.0 mm Extreme 52
28 Aug after 27.4 °C 45 % 65 km/h 0.0 mm Very high 43
29 Aug after 18.9 °C 30 % 44 km/h 0.0 mm High 32
30 Aug after 25.7 °C 34 % 27 km/h 0.1 mm High 25
31 Aug after 32.6 °C 27 % 42 km/h 0.0 mm High 36
1 Sept after 36.7 °C 21 % 62 km/h 0.1 mm Extreme 58
2 Sept after 25.6 °C 53 % 55 km/h 0.0 mm High 36
3 Sept after 24.7 °C 23 % 40 km/h 0.0 mm High 35
4 Sept after 21.2 °C 20 % 32 km/h 0.0 mm High 31
5 Sept after 25.7 °C 14 % 24 km/h 0.1 mm High 33
6 Sept after 29.0 °C 16 % 22 km/h 0.0 mm High 33

Its twins: fires that started in the same weather

It started with an FWI of 10.9, a minimum humidity of 42% and rain the day before. Fires in the area that started in weather like this since 2016: 18.

FWI at the start 10.9
Minimum humidity 42 %
Days without rain 0
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Pilagás fire, February 2022
2,901 ha 5 days FWI 11.2 Min. humidity 42 % 89 km away, in 2022

First rain (1 mm or more) after it ended: 9.5 mm on 2 Mar.

What happened to them

7 days
median duration
2,680 ha
median area
100 %
went past 1,000 ha
7.9 mm
rain at the end (median; 17 of 18 had it)

It stayed below its twins: 1,746 ha against a median of 2,680 ha. It lasted 12 days, against 7 days.

In 1 of 18, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 7.9 mm.

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
58km/h · max. gust

It was considered over on 27 Aug, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 17 of 18, with a median of 7.9 mm.

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.

How we calculate it

Before and after, from space

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

Before · 9 Aug 2022
After · 3 Sept 2022

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 · Copernicus

On 17 August 2022 the air beside the fire reached 55 µg/m³ of PM2.5. That day averaged 29: 1.9 times the WHO daily guideline (15).

PM2.5 peak55 µg/m³
Days over the guideline6 days
PM1078 µg/m³
Optical depth2.00
14 Aug18 Aug22 Aug26 Aug30 Aug
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 · 108Every 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 Argentina

Frequently asked questions

How long did the Patiño fire last?
GWIS (Copernicus) dates it between 16 August 2022 and 27 August 2022: 12 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 1,746 hectares (17.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Patiño (1,746 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 37.9 °C, humidity dropped to 14 % and gusts hit 58 km/h. The fire danger index (FWI) reached 52, class 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.
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: 18. Their median duration was 7 days and their median area 2,680 ha; 100 % went past 1,000 ha. In 1 of 18, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 7.9 mm.

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 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

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
What do you think is wrong?

We will only use your email to reply about this report. Privacy. This is not an emergency service: if there is a fire now, call 911 · 100.

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. 108 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.

How we build fire pages: methodology

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.