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Juara fire, 21 August 2024 Juara

Out · last detection 22 Sept 2024, 17:34 UTC

The fire started on 21 August 2024 in Juara, Brazil, and satellites saw it burning for 33 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 17,137 hectares from heat detections, spread across a single municipality.

It is the 226th largest in Mato Grosso since 2016 (of 1996 with a page). Number 167 in Brazil in 2024, of 1301.

Burnt area
17,137ha
GWIS perimeter (Copernicus)
Duration
33days
21 Aug 2024 – 22 Sept 2024
Municipalities hit
1
municipalities
Started on
21 Aug
2024
Heat detections
1,084
in a single hotspot: 98 MW
Danger at start
45
Very high · FWI index
Energy released
7.4GW
sum of detected power

Where it burned

22 Sept 2024
HOTSPOTS BY DAY 21 Aug22 Sept

How it evolved, day by day

21222324252627282930311234567891011121314151617182122

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
40km/h · peak gust
13%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 2.0 mm on 27 Sept.

This area had burned before

33% of the perimeter overlaps earlier fires recorded since 2016: 3,006 ha in 2017, 4,421 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 5,634 ha that had burned before.

What happened to each town

  1. Juara 34,906 inhabitants where it started
    17,204 ha reached on 21 Aug
    0.8 %

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)
21 Aug 36.2 °C 20 % 34 km/h 0.0 mm Very high 45
22 Aug 36.8 °C 19 % 33 km/h 0.0 mm Very high 43
23 Aug 37.0 °C 21 % 23 km/h 0.0 mm Very high 40
24 Aug 34.5 °C 32 % 23 km/h 0.0 mm High 37
25 Aug 31.9 °C 36 % 38 km/h 0.0 mm Very high 42
26 Aug 29.7 °C 36 % 38 km/h 0.0 mm Very high 40
27 Aug 34.3 °C 25 % 28 km/h 0.0 mm High 35
28 Aug 37.1 °C 18 % 31 km/h 0.0 mm Very high 44
29 Aug 35.4 °C 23 % 40 km/h 0.0 mm Extreme 50
30 Aug 35.3 °C 20 % 40 km/h 0.0 mm Extreme 51
31 Aug 35.9 °C 24 % 36 km/h 0.0 mm Very high 47
1 Sept 37.3 °C 17 % 35 km/h 0.0 mm Very high 50
2 Sept 36.5 °C 19 % 31 km/h 0.0 mm Very high 46
3 Sept 35.7 °C 26 % 31 km/h 0.0 mm Very high 43
4 Sept 36.4 °C 20 % 32 km/h 0.0 mm Very high 45
5 Sept 38.2 °C 13 % 32 km/h 0.0 mm Extreme 50
6 Sept 36.3 °C 15 % 29 km/h 0.0 mm Extreme 50
7 Sept 35.3 °C 20 % 31 km/h 0.0 mm Extreme 51
8 Sept 36.7 °C 20 % 27 km/h 0.0 mm Very high 47
9 Sept 36.9 °C 18 % 35 km/h 0.0 mm Extreme 53
10 Sept 36.8 °C 20 % 30 km/h 0.0 mm Very high 48
11 Sept 35.4 °C 28 % 33 km/h 0.0 mm Very high 43
12 Sept 36.3 °C 26 % 30 km/h 0.0 mm Very high 41
13 Sept 36.9 °C 24 % 32 km/h 0.0 mm Very high 40
14 Sept 34.9 °C 32 % 23 km/h 0.0 mm High 36
15 Sept 34.5 °C 32 % 24 km/h 0.0 mm High 35
16 Sept 32.9 °C 39 % 32 km/h 0.0 mm High 35
17 Sept 36.4 °C 26 % 29 km/h 0.0 mm Very high 38
18 Sept 35.4 °C 35 % 32 km/h 0.0 mm Very high 40
19 Sept 34.2 °C 31 % 38 km/h 0.0 mm High 36
20 Sept 36.2 °C 26 % 33 km/h 0.0 mm Very high 40
21 Sept 35.9 °C 27 % 31 km/h 0.0 mm Very high 40
22 Sept 36.2 °C 30 % 25 km/h 0.0 mm High 36
23 Sept after 35.8 °C 37 % 27 km/h 0.0 mm High 38
24 Sept after 34.5 °C 39 % 27 km/h 0.0 mm High 31
25 Sept after 36.1 °C 31 % 29 km/h 0.3 mm High 38
26 Sept after 35.2 °C 37 % 26 km/h 0.2 mm High 31
27 Sept after 33.3 °C 45 % 30 km/h 2.0 mm Moderate 16

Before and after, from space

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

Before · 14 Aug 2024
After · 29 Sept 2024

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 4 September 2024 the air beside the fire reached 334 µg/m³ of PM2.5. That day averaged 214: 14 times the WHO daily guideline (15).

PM2.5 peak334 µg/m³
Days over the guideline45 days
PM10479 µg/m³
Optical depth4.72
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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 · 1,084Every 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 Juara fire last?
GWIS (Copernicus) dates it between 21 August 2024 and 22 September 2024: 33 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 17,137 hectares (171.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Juara (17,204 ha, 0.8 %).
What was the weather like?
During the fire the temperature reached 38.2 °C, humidity dropped to 13 % and gusts hit 40 km/h. The fire danger index (FWI) reached 53, 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.

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.