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Gaúcha do Norte fire, 5 September 2020 Querência, Gaúcha do Norte

Out · last detection 19 Sept 2020, 16:43 UTC

The fire started on 5 September 2020 in Gaúcha do Norte, Brazil, and satellites saw it burning for 15 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,487 hectares from heat detections, spread across 2 municipalities.

It is the 921th largest in Mato Grosso since 2016 (of 1874 with a page). Number 458 in Brazil in 2020, of 957.

Burnt area
5,487ha
GWIS perimeter (Copernicus)
Duration
15days
5 Sept 2020 – 19 Sept 2020
Municipalities hit
2
municipalities
Started on
5 Sept
2020
Heat detections
261
in a single hotspot: 0 MW
Danger at start
42
Very high · FWI index
Average daily power
224MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 5 Sept19 Sept
19 Sept 2020

How it evolved, day by day

5 Sept 2020 · 20 MW · 5 6 Sept 2020 · 21 MW · 6 7 Sept 2020 · 56 MW · 12 8 Sept 2020 · 68 MW · 11 9 Sept 2020 · 16 MW · 4 10 Sept 2020 · 200 MW · 12 11 Sept 2020 · 316 MW · 64 12 Sept 2020 · 564 MW · 53 13 Sept 2020 · 1,713 MW · 44 14 Sept 2020 · 195 MW · 19 15 Sept 2020 · 15 MW · 2 16 Sept 2020 · 52 MW · 6 17 Sept 2020 · 60 MW · 11 18 Sept 2020 · 62 MW · 10 19 Sept 2020 · 10 MW · 2
5 Sept 8 Sept 13 Sept 17 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

37°high
40km/h · peak gust
20%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 8.8 mm on 22 Sept.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 3.5% of the area of London (55 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. Querência 26,769 inhabitants
    4,698 ha
    0.3 %
  2. Gaúcha do Norte 8,642 inhabitants where it started
    815 ha
    0.0 %

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 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)

Started with 60 days without rain: 55 % of the area in Brazil

Day High Min. humidity Peak gust Rain Danger (FWI)
5 Sept 35.6 °C 23 % 31 km/h 0.0 mm Very high 42
6 Sept 37.0 °C 23 % 25 km/h 0.0 mm Very high 40
7 Sept 35.7 °C 27 % 25 km/h 0.0 mm Very high 40
8 Sept 36.5 °C 24 % 31 km/h 0.0 mm Very high 41
9 Sept 36.0 °C 27 % 26 km/h 0.0 mm Very high 41
10 Sept 36.7 °C 26 % 28 km/h 0.0 mm Very high 42
11 Sept 36.6 °C 23 % 30 km/h 0.0 mm Very high 42
12 Sept 36.6 °C 24 % 32 km/h 0.0 mm Very high 43
13 Sept 35.8 °C 20 % 40 km/h 0.0 mm Very high 47
14 Sept 34.7 °C 24 % 30 km/h 0.0 mm Very high 43
15 Sept 35.7 °C 24 % 31 km/h 0.0 mm Very high 44
16 Sept 34.6 °C 29 % 22 km/h 0.0 mm High 38
17 Sept 35.2 °C 30 % 20 km/h 0.0 mm High 36
18 Sept 37.3 °C 24 % 25 km/h 0.0 mm Very high 38
19 Sept 35.7 °C 35 % 23 km/h 0.0 mm High 34
20 Sept after 34.6 °C 40 % 35 km/h 0.0 mm High 35
21 Sept after 34.8 °C 40 % 26 km/h 0.2 mm High 33
22 Sept after 28.3 °C 69 % 31 km/h 8.8 mm Very low 2

Its twins: fires that started in the same weather

It started with an FWI of 42.4, a minimum humidity of 23% and more than two months without rain. Fires in the area that started in weather like this since 2016: 22.

FWI at the start 42.4
Minimum humidity 23 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

São Félix do Araguaia fire, August 2021
7,737 ha 21 days FWI 42.2 Min. humidity 23 % 111 km away, in 2021

First rain (1 mm or more) after it ended: 1.0 mm on 13 Sept.

What happened to them

16 days
median duration
5,600 ha
median area
23 %
went past 10,000 ha
3.1 mm
rain at the end (median; 15 of 22 had it)

It burned an area similar to its twins (5,487 ha against a median of 5,600 ha) and lasted 15 days, against 16 days.

In 7 of 22, 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 3.1 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

8.8 mmfirst rain
22 Sept3 days after it ended
40km/h · max. gust

It was considered over on 19 Sept, and on 22 Sept 8.8 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 15 of 22, with a median of 3.1 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 · 29 Aug 2020
After · 26 Sept 2020

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 · 0Every 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 Gaúcha do Norte fire last?
GWIS (Copernicus) dates it between 5 September 2020 and 19 September 2020: 15 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 5,487 hectares (54.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Querência (4,698 ha, 0.3 %); Gaúcha do Norte (815 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 37.3 °C, humidity dropped to 20 % and gusts hit 40 km/h. The fire danger index (FWI) reached 47, class Very 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.
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: 22. Their median duration was 16 days and their median area 5,600 ha; 23 % went past 10,000 ha. In 7 of 22, 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 3.1 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 · 3 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 29 August 2020 → 5 September 2020.
  2. Name: Querência → Gaúcha do Norte.
  3. Start date: 5 September 2020 → 29 August 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
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 from the perimeter: the VIIRS detections inside it did not change them. No 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.