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Juína fire, 7 August 2024 Juína

Out · last detection 30 Aug 2024, 18:05 UTC

The fire started on 7 August 2024 in Juína, Brazil, and satellites saw it burning for 23 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 12,759 hectares from heat detections, spread across a single municipality.

It is the 345th largest in Mato Grosso since 2016 (of 1996 with a page). Number 237 in Brazil in 2024, of 1301.

Burnt area
12,759ha
GWIS perimeter (Copernicus)
Duration
23days
7 Aug 2024 – 29 Aug 2024
Municipalities hit
1
municipalities
Started on
7 Aug
2024
Heat detections
672
in a single hotspot: 270 MW
Danger at start
40
Very high · FWI index
Energy released
10.1GW
sum of detected power

Where it burned

30 Aug 2024
HOTSPOTS BY DAY 7 Aug29 Aug

How it evolved, day by day

89101112131415161718192021222324252627282930

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
43km/h · peak gust
15%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

40% of the perimeter overlaps earlier fires recorded since 2016: 2,899 ha in 2016, 1,347 ha in 2019, 1,888 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 5,126 ha that had burned before.

What happened to each town

  1. Juína 45,869 inhabitants where it started
    12,869 ha reached on 8 Aug
    0.5 %

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)
7 Aug 33.0 °C 26 % 32 km/h 0.0 mm Very high 40
8 Aug 34.4 °C 25 % 22 km/h 0.0 mm High 38
9 Aug 26.7 °C 46 % 42 km/h 0.0 mm High 34
10 Aug 23.3 °C 39 % 42 km/h 0.0 mm High 34
11 Aug 32.0 °C 25 % 23 km/h 0.0 mm High 32
12 Aug 31.9 °C 22 % 33 km/h 0.0 mm Very high 39
13 Aug 32.7 °C 18 % 28 km/h 0.0 mm Very high 42
14 Aug 35.3 °C 15 % 27 km/h 0.0 mm Very high 43
15 Aug 36.4 °C 20 % 23 km/h 0.0 mm Very high 42
16 Aug 34.4 °C 31 % 21 km/h 0.1 mm High 36
17 Aug 35.4 °C 27 % 28 km/h 0.0 mm Very high 38
18 Aug 35.8 °C 24 % 26 km/h 0.0 mm High 38
19 Aug 34.7 °C 27 % 23 km/h 0.0 mm High 36
20 Aug 35.7 °C 21 % 30 km/h 0.0 mm Very high 39
21 Aug 36.1 °C 19 % 34 km/h 0.0 mm Very high 44
22 Aug 35.3 °C 26 % 30 km/h 0.0 mm Very high 40
23 Aug 36.2 °C 23 % 24 km/h 0.0 mm Very high 38
24 Aug 34.3 °C 29 % 32 km/h 0.0 mm Very high 44
25 Aug 27.0 °C 38 % 43 km/h 0.0 mm High 37
26 Aug 29.1 °C 29 % 34 km/h 0.0 mm High 36
27 Aug 32.8 °C 24 % 26 km/h 0.0 mm High 34
28 Aug 35.2 °C 17 % 26 km/h 0.0 mm Very high 40
29 Aug 36.0 °C 21 % 38 km/h 0.0 mm Very high 47
30 Aug after 35.2 °C 20 % 41 km/h 0.0 mm Very high 49
31 Aug after 35.7 °C 23 % 27 km/h 0.0 mm Very high 41
1 Sept after 35.6 °C 23 % 32 km/h 0.0 mm Very high 44
2 Sept after 35.8 °C 17 % 35 km/h 0.0 mm Very high 46
3 Sept after 36.7 °C 21 % 38 km/h 0.0 mm Very high 47
4 Sept after 34.9 °C 32 % 29 km/h 0.0 mm Very high 38
5 Sept after 35.6 °C 23 % 34 km/h 0.0 mm Very high 42
6 Sept after 35.7 °C 18 % 31 km/h 0.0 mm Very high 44
7 Sept after 35.8 °C 19 % 24 km/h 0.0 mm Very high 42
8 Sept after 35.8 °C 21 % 24 km/h 0.0 mm Very high 41
9 Sept after 36.9 °C 17 % 29 km/h 0.0 mm Very high 42
10 Sept after 35.6 °C 25 % 27 km/h 0.0 mm Very high 42
11 Sept after 35.5 °C 30 % 33 km/h 0.0 mm Very high 41
12 Sept after 34.8 °C 32 % 26 km/h 0.0 mm High 37
13 Sept after 35.3 °C 31 % 23 km/h 0.0 mm High 38
14 Sept after 34.8 °C 33 % 18 km/h 0.3 mm High 36
15 Sept after 31.2 °C 51 % 25 km/h 0.9 mm Moderate 19

Before and after, from space

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

Before · 31 Jul 2024
After · 5 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 30 August 2024 the air beside the fire reached 91 µg/m³ of PM2.5. That day averaged 56: 3.7 times the WHO daily guideline (15).

PM2.5 peak91 µg/m³
Days over the guideline25 days
PM10130 µg/m³
Optical depth1.86
56789101112131415161718192021222324252627282930311
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 · 672Every 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 Juína fire last?
GWIS (Copernicus) dates it between 7 August 2024 and 29 August 2024: 23 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 12,759 hectares (127.6 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Juína (12,869 ha, 0.5 %).
What was the weather like?
During the fire the temperature reached 36.7 °C, humidity dropped to 15 % and gusts hit 43 km/h. The fire danger index (FWI) reached 49, 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.

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.