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Jaciara fire, August 2021 Dom Aquino, Jaciara, Campo Verde

Out · last detection 31 Aug 2021, 16:55 UTC

The fire started on 8 August 2021 in Jaciara, Brazil, and satellites saw it burning for 24 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 35,091 hectares from heat detections, spread across 3 municipalities.

It is the 79th largest in Mato Grosso since 2016 (of 1996 with a page). Number 20 in Brazil in 2021, of 814.

Compare with…

Suggestions: Jaciara · 2020Dom Aquino · 2020Dom Aquino · 2020

Burnt area
35,091ha
GWIS perimeter (Copernicus)
Duration
24days
8 Aug 2021 – 31 Aug 2021
Municipalities hit
3
municipalities
Started on
8 Aug
2021
Heat detections
1,434
in a single hotspot: 242 MW
Danger at start
37
High · FWI index
Average daily power
921MW
detected power per day, on average

Where it burned

31 Aug 2021
HOTSPOTS BY DAY 8 Aug31 Aug

How it evolved, day by day

8 Aug 2021 · 54 MW · 3 9 Aug 2021 · 43 MW · 12 10 Aug 2021 · 126 MW · 14 11 Aug 2021 · 20 MW · 5 12 Aug 2021 · 44 MW · 14 13 Aug 2021 · 33 MW · 10 14 Aug 2021 · 105 MW · 17 15 Aug 2021 · 390 MW · 24 16 Aug 2021 · 262 MW · 52 17 Aug 2021 · 64 MW · 17 18 Aug 2021 · 110 MW · 31 19 Aug 2021 · 655 MW · 33 20 Aug 2021 · 857 MW · 78 21 Aug 2021 · 88 MW · 12 22 Aug 2021 · 2,215 MW · 129 23 Aug 2021 · 2,219 MW · 171 24 Aug 2021 · 3,662 MW · 233 25 Aug 2021 · 6,943 MW · 260 26 Aug 2021 · 2,440 MW · 220 27 Aug 2021 · 694 MW · 74 28 Aug 2021 · 80 MW · 15 29 Aug 2021 · 21 MW · 7 31 Aug 2021 · 46 MW · 3
8 Aug 12 Aug 16 Aug 20 Aug 24 Aug 25 Aug 28 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

37°high
51km/h · peak gust
15%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 3.0 mm on 9 Sept.

This area had burned before

3% of the perimeter overlaps earlier fires recorded since 2016: 925 ha in 2018.

How big is it?

10 km
It burned the equivalent of 22% of the area of London (351 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. Dom Aquino 7,872 inhabitants
    29,857 ha reached on 17 Aug
    13 %
  2. Jaciara 28,569 inhabitants where it started
    5,282 ha reached on 8 Aug
    2.2 %
  3. Campo Verde 44,585 inhabitants
    147 ha reached on 24 Aug
    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)
8 Aug 31.5 °C 26 % 37 km/h 0.0 mm High 37
9 Aug 31.5 °C 27 % 31 km/h 0.0 mm High 36
10 Aug 31.9 °C 23 % 27 km/h 0.0 mm High 35
11 Aug 29.9 °C 34 % 30 km/h 0.0 mm High 35
12 Aug 27.9 °C 37 % 26 km/h 0.0 mm High 31
13 Aug 30.0 °C 32 % 27 km/h 0.0 mm High 32
14 Aug 31.2 °C 29 % 23 km/h 0.0 mm High 29
15 Aug 32.8 °C 26 % 19 km/h 0.0 mm High 31
16 Aug 34.6 °C 18 % 31 km/h 0.0 mm Very high 44
17 Aug 34.6 °C 17 % 34 km/h 0.0 mm Very high 46
18 Aug 33.7 °C 20 % 51 km/h 0.0 mm Extreme 54
19 Aug 32.7 °C 19 % 45 km/h 0.0 mm Extreme 51
20 Aug 32.8 °C 21 % 36 km/h 0.0 mm Very high 46
21 Aug 33.4 °C 21 % 30 km/h 0.0 mm Very high 43
22 Aug 34.1 °C 20 % 42 km/h 0.0 mm Extreme 50
23 Aug 34.7 °C 20 % 40 km/h 0.0 mm Very high 49
24 Aug 35.0 °C 20 % 32 km/h 0.0 mm Very high 45
25 Aug 36.1 °C 15 % 40 km/h 0.0 mm Extreme 51
26 Aug 33.3 °C 28 % 27 km/h 0.0 mm Very high 42
27 Aug 33.5 °C 29 % 27 km/h 0.0 mm Very high 40
28 Aug 34.7 °C 23 % 28 km/h 0.0 mm High 38
29 Aug 32.6 °C 30 % 50 km/h 0.1 mm Very high 50
30 Aug 32.3 °C 30 % 25 km/h 0.0 mm High 35
31 Aug 33.9 °C 19 % 29 km/h 0.0 mm Very high 39
1 Sept after 34.0 °C 22 % 27 km/h 0.0 mm Very high 39
2 Sept after 33.4 °C 30 % 37 km/h 0.0 mm Very high 41
3 Sept after 32.6 °C 34 % 38 km/h 0.5 mm High 38
4 Sept after 34.3 °C 26 % 27 km/h 0.2 mm High 36
5 Sept after 36.8 °C 16 % 28 km/h 0.0 mm Very high 43
6 Sept after 36.3 °C 20 % 27 km/h 0.0 mm Very high 44
7 Sept after 37.4 °C 19 % 36 km/h 0.0 mm Extreme 51
8 Sept after 35.3 °C 30 % 37 km/h 0.5 mm Very high 44
9 Sept after 29.2 °C 56 % 33 km/h 3.0 mm Low 8

Before and after, from space

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

Before · 1 Aug 2021
After · 7 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 · 1,434Every 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 Jaciara fire last?
GWIS (Copernicus) dates it between 8 August 2021 and 31 August 2021: 24 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 35,091 hectares (350.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 3 municipalities: Dom Aquino (29,857 ha, 13 %); Jaciara (5,282 ha, 2.2 %); Campo Verde (147 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 36.8 °C, humidity dropped to 15 % and gusts hit 51 km/h. The fire danger index (FWI) reached 54, 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.

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; 2 polygons grouped in this page.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 1,434 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.