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Cotriguaçu fire, 30 August 2022 Cotriguaçu, Colniza

Out · last detection 10 Sept 2022, 18:06 UTC

The fire started on 30 August 2022 in Cotriguaçu, Brazil, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,607 hectares from heat detections, spread across 2 municipalities.

It is the 955th largest in Mato Grosso since 2016 (of 1996 with a page). Number 260 in Brazil in 2022, of 687.

Burnt area
5,607ha
GWIS perimeter (Copernicus)
Duration
11days
30 Aug 2022 – 9 Sept 2022
Municipalities hit
2
municipalities
Started on
30 Aug
2022
Heat detections
368
in a single hotspot: 99 MW
Danger at start
22
High · FWI index
Average daily power
290MW
detected power per day, on average

Where it burned

10 Sept 2022
HOTSPOTS BY DAY 30 Aug9 Sept

How it evolved, day by day

30 Aug 2022 · 128 MW · 13 31 Aug 2022 · 1,031 MW · 60 1 Sept 2022 · 334 MW · 68 2 Sept 2022 · 186 MW · 23 3 Sept 2022 · 191 MW · 23 4 Sept 2022 · 23 MW · 4 5 Sept 2022 · 606 MW · 21 6 Sept 2022 · 703 MW · 87 7 Sept 2022 · 152 MW · 35 8 Sept 2022 · 94 MW · 19 9 Sept 2022 · 4 MW · 4 10 Sept 2022 · 26 MW · 2
30 Aug 31 Aug 1 Sept 3 Sept 5 Sept 7 Sept 9 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
35km/h · peak gust
22%lowest humidity

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

This area had burned before

55% of the perimeter overlaps earlier fires recorded since 2016: 346 ha in 2016, 2,255 ha in 2019, 1,265 ha in 2020, 1,574 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 3,111 ha that had burned before.

What happened to each town

  1. Cotriguaçu 11,011 inhabitants where it started
    4,286 ha reached on 28 Aug
    0.4 %
  2. Colniza
    1,363 ha reached on 5 Sept
    0.0 %

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)
28 Aug 33.9 °C 44 % 22 km/h 0.1 mm High 22
29 Aug 34.6 °C 27 % 33 km/h 0.0 mm High 32
30 Aug 35.5 °C 28 % 30 km/h 0.0 mm High 34
31 Aug 35.9 °C 28 % 15 km/h 0.0 mm High 30
1 Sept 35.3 °C 31 % 21 km/h 0.0 mm High 30
2 Sept 35.0 °C 31 % 17 km/h 0.0 mm High 32
3 Sept 36.3 °C 22 % 34 km/h 0.0 mm Very high 41
4 Sept 35.2 °C 25 % 35 km/h 0.0 mm Very high 42
5 Sept 36.2 °C 26 % 35 km/h 0.0 mm Very high 42
6 Sept 32.7 °C 43 % 21 km/h 0.0 mm High 31
7 Sept 34.3 °C 44 % 26 km/h 0.3 mm High 27
8 Sept 33.8 °C 49 % 30 km/h 0.3 mm High 25
9 Sept 34.8 °C 46 % 32 km/h 0.1 mm High 26
10 Sept after 33.7 °C 43 % 20 km/h 0.0 mm High 26
11 Sept after 33.7 °C 47 % 23 km/h 0.3 mm High 26
12 Sept after 33.6 °C 47 % 20 km/h 0.2 mm High 25
13 Sept after 33.0 °C 45 % 23 km/h 0.3 mm High 28
14 Sept after 35.3 °C 38 % 30 km/h 0.0 mm High 27
15 Sept after 32.7 °C 45 % 33 km/h 0.2 mm High 31
16 Sept after 35.1 °C 38 % 25 km/h 0.1 mm High 29
17 Sept after 35.1 °C 42 % 22 km/h 0.1 mm High 27
18 Sept after 30.6 °C 59 % 32 km/h 0.7 mm Moderate 19
19 Sept after 35.2 °C 32 % 24 km/h 0.0 mm High 29
20 Sept after 35.5 °C 35 % 21 km/h 0.0 mm High 28
21 Sept after 34.4 °C 40 % 26 km/h 0.3 mm High 31

Before and after, from space

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

Before · 23 Aug 2022
After · 16 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 6 September 2022 the air beside the fire reached 268 µg/m³ of PM2.5. That day averaged 158: 11 times the WHO daily guideline (15).

PM2.5 peak268 µg/m³
Days over the guideline15 days
PM10383 µg/m³
Optical depth2.39
28293031123456789101112
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 · 368Every 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 Cotriguaçu fire last?
GWIS (Copernicus) dates it between 30 August 2022 and 9 September 2022: 11 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 5,607 hectares (56.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Cotriguaçu (4,286 ha, 0.4 %); Colniza (1,363 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 36.3 °C, humidity dropped to 22 % and gusts hit 35 km/h. The fire danger index (FWI) reached 42, 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.

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

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
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. 368 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.

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.