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Juína fire, 3 September 2024 Juína, Comodoro

Out · last detection 11 Sept 2024, 17:40 UTC

The fire started on 3 September 2024 in Juína, Brazil, and satellites saw it burning for 9 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,209 hectares from heat detections, spread across 2 municipalities.

It is the 1834th largest in Mato Grosso since 2016 (of 1996 with a page). Number 1193 in Brazil in 2024, of 1301.

Compare with…

Suggestions: Juína · 2024Vilhena · 2019Juína · 2024

Burnt area
3,209ha
GWIS perimeter (Copernicus)
Duration
9days
3 Sept 2024 – 11 Sept 2024
Municipalities hit
2
municipalities
Started on
3 Sept
2024
Heat detections
204
in a single hotspot: 47 MW
Danger at start
48
Very high · FWI index
Average daily power
258MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 3 Sept11 Sept
11 Sept 2024

How it evolved, day by day

3 Sept 2024 · 29 MW · 4 4 Sept 2024 · 2 MW · 1 5 Sept 2024 · 1 MW · 1 7 Sept 2024 · 6 MW · 5 8 Sept 2024 · 1,104 MW · 80 9 Sept 2024 · 688 MW · 49 10 Sept 2024 · 117 MW · 44 11 Sept 2024 · 115 MW · 12
3 Sept 5 Sept 8 Sept 10 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
41km/h · peak gust
17%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 24 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 2% of the area of London (32 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. Juína 45,869 inhabitants where it started
    2,945 ha reached on 30 Aug
    0.1 %
  2. Comodoro 18,238 inhabitants
    291 ha reached on 9 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)
30 Aug 34.7 °C 20 % 41 km/h 0.0 mm Very high 48
31 Aug 35.2 °C 23 % 27 km/h 0.0 mm Very high 40
1 Sept 35.1 °C 23 % 32 km/h 0.0 mm Very high 44
2 Sept 35.3 °C 17 % 35 km/h 0.0 mm Very high 45
3 Sept 36.2 °C 21 % 38 km/h 0.0 mm Very high 46
4 Sept 34.4 °C 31 % 29 km/h 0.0 mm Very high 38
5 Sept 35.1 °C 23 % 34 km/h 0.0 mm Very high 43
6 Sept 35.2 °C 18 % 31 km/h 0.0 mm Very high 43
7 Sept 35.3 °C 18 % 24 km/h 0.0 mm Very high 42
8 Sept 35.3 °C 21 % 24 km/h 0.0 mm Very high 41
9 Sept 36.4 °C 17 % 29 km/h 0.0 mm Very high 42
10 Sept 35.1 °C 25 % 27 km/h 0.0 mm Very high 42
11 Sept 35.0 °C 30 % 33 km/h 0.0 mm Very high 41
12 Sept after 34.3 °C 32 % 26 km/h 0.0 mm High 36
13 Sept after 34.8 °C 31 % 23 km/h 0.0 mm High 37
14 Sept after 34.3 °C 32 % 18 km/h 0.3 mm High 36
15 Sept after 30.7 °C 50 % 25 km/h 0.9 mm Moderate 19
16 Sept after 31.4 °C 43 % 32 km/h 0.0 mm High 26
17 Sept after 34.4 °C 32 % 27 km/h 0.0 mm High 31
18 Sept after 34.5 °C 33 % 23 km/h 0.0 mm High 30
19 Sept after 33.3 °C 37 % 38 km/h 0.0 mm High 36
20 Sept after 35.5 °C 28 % 32 km/h 0.0 mm High 36
21 Sept after 35.0 °C 30 % 22 km/h 0.0 mm High 32
22 Sept after 35.1 °C 32 % 29 km/h 0.0 mm High 34
23 Sept after 35.6 °C 31 % 30 km/h 0.0 mm High 34
24 Sept after 34.4 °C 35 % 26 km/h 1.4 mm High 24

Before and after, from space

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

Before · 27 Aug 2024
After · 18 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 8 September 2024 the air beside the fire reached 190 µg/m³ of PM2.5. That day averaged 162: 11 times the WHO daily guideline (15).

PM2.5 peak190 µg/m³
Days over the guideline14 days
PM10274 µg/m³
Optical depth3.66
1234567891011121314
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 · 204Every 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 3 September 2024 and 11 September 2024: 9 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 3,209 hectares (32.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Juína (2,945 ha, 0.1 %); Comodoro (291 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 36.4 °C, humidity dropped to 17 % and gusts hit 41 km/h. The fire danger index (FWI) reached 48, 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. 204 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.