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BR · Brazil · –

Padre Bernardo fire, 11 September 2021 Padre Bernardo

Out · last detection 20 Sept 2021, 17:20 UTC

The fire started on 11 September 2021 in Padre Bernardo, Brazil, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,708 hectares from heat detections, spread across a single municipality.

It is the 372th largest in Goiás since 2016 (of 488 with a page). Number 614 in Brazil in 2021, of 814.

Burnt area
3,708ha
GWIS perimeter (Copernicus)
Duration
10days
11 Sept 2021 – 20 Sept 2021
Municipalities hit
1
municipalities
Started on
11 Sept
2021
Heat detections
101
in a single hotspot: 53 MW
Danger at start
45
Very high · FWI index
Average daily power
104MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 11 Sept20 Sept
20 Sept 2021

How it evolved, day by day

11 Sept 2021 · 115 MW · 13 12 Sept 2021 · 167 MW · 16 13 Sept 2021 · 12 MW · 3 14 Sept 2021 · 19 MW · 12 15 Sept 2021 · 220 MW · 34 16 Sept 2021 · 30 MW · 13 17 Sept 2021 · 12 MW · 1 20 Sept 2021 · 260 MW · 9
11 Sept 13 Sept 15 Sept 20 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

36°high
43km/h · peak gust
12%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 2.5 mm on 26 Sept.

This area had burned before

72% of the perimeter overlaps earlier fires recorded since 2016: 565 ha in 2017, 2,383 ha in 2018. Part of it burned more than once, so the yearly figures add up to more than the 2,670 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 2.3% of the area of London (37 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. Padre Bernardo 34,967 inhabitants where it started
    3,731 ha reached on 11 Sept
    1.2 %

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 area0.40 ha
Residents≈ 70

Inside the perimeter there were about 0.40 hectares of built-up land and about 70 residents (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 Very dry air: 6.4 % of the area in Brazil 60 days without rain: 55 % of the area in Brazil

Day High Min. humidity Peak gust Rain Danger (FWI)
11 Sept 35.6 °C 13 % 28 km/h 0.0 mm Very high 45
12 Sept 34.3 °C 19 % 40 km/h 0.0 mm Extreme 52
13 Sept 33.5 °C 19 % 36 km/h 0.0 mm Very high 48
14 Sept 33.8 °C 18 % 26 km/h 0.0 mm Very high 43
15 Sept 34.9 °C 17 % 28 km/h 0.0 mm Very high 46
16 Sept 35.2 °C 15 % 38 km/h 0.0 mm Extreme 52
17 Sept 32.5 °C 18 % 43 km/h 0.0 mm Extreme 56
18 Sept 33.1 °C 14 % 39 km/h 0.0 mm Extreme 52
19 Sept 35.0 °C 12 % 27 km/h 0.0 mm Very high 46
20 Sept 35.5 °C 15 % 31 km/h 0.0 mm Very high 48
21 Sept after 35.8 °C 18 % 34 km/h 0.0 mm Very high 48
22 Sept after 35.9 °C 19 % 28 km/h 0.0 mm Very high 47
23 Sept after 34.5 °C 27 % 42 km/h 0.0 mm Very high 48
24 Sept after 32.8 °C 30 % 30 km/h 0.0 mm High 38
25 Sept after 32.5 °C 28 % 22 km/h 0.5 mm Very high 39
26 Sept after 27.9 °C 42 % 28 km/h 2.5 mm Low 9

Its twins: fires that started in the same weather

It started with an FWI of 45.2, a minimum humidity of 13% and more than two months without rain. Fires in the area that started in weather like this since 2016: 28.

FWI at the start 45.2
Minimum humidity 13 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Padre Bernardo fire, September 2022
3,271 ha 7 days FWI 43.9 Min. humidity 12 % 25 km away, in 2022

First rain (1 mm or more) after it ended: 1.4 mm on 18 Sept.

What happened to them

7 days
median duration
4,520 ha
median area
11 %
went past 10,000 ha
2.3 mm
rain at the end (median; 13 of 28 had it)

It burned an area similar to its twins (3,708 ha against a median of 4,520 ha) and lasted 10 days, against 7 days.

In 15 of 28, 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 2.3 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

2.5 mmfirst rain
26 Sept6 days after it ended
43km/h · max. gust

It was considered over on 20 Sept, and on 26 Sept 2.5 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 13 of 28, with a median of 2.3 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 · 4 Sept 2021
After · 27 Sept 2021

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 · 101Every 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 Brazil

Frequently asked questions

How long did the Padre Bernardo fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 11 September 2021 to 20 September 2021 (10 days). The perimeter dates it from 11 September 2021 to 17 September 2021.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,708 hectares (37.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Padre Bernardo (3,731 ha, 1.2 %).
What was the weather like?
During the fire the temperature reached 35.6 °C, humidity dropped to 12 % and gusts hit 43 km/h. The fire danger index (FWI) reached 56, class Extreme.
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.
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: 28. Their median duration was 7 days and their median area 4,520 ha; 11 % went past 10,000 ha. In 15 of 28, 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 2.3 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: 193 · 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.
  1. Last day with fire: 17 September 2021 → 20 September 2021.

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
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 193.

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 11 September 2021 to 17 September 2021. 101 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.