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Apuí fire, 13 July 2024 Apuí

Out · last detection 15 Aug 2024, 17:48 UTC

The fire started on 13 July 2024 in Apuí, Brazil, and satellites saw it burning for 34 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 22,593 hectares from heat detections, spread across a single municipality.

It is the 9th largest in Amazonas since 2016 (of 450 with a page). Number 131 in Brazil in 2024, of 1301.

Burnt area
22,593ha
GWIS perimeter (Copernicus)
Duration
34days
13 Jul 2024 – 15 Aug 2024
Municipalities hit
1
municipalities
Started on
13 Jul
2024
Heat detections
2,435
in a single hotspot: 504 MW
Danger at start
28
High · FWI index
Energy released
42.3GW
sum of detected power

Where it burned

15 Aug 2024
HOTSPOTS BY DAY 13 Jul15 Aug

How it evolved, day by day

1718192021222324293031123456789101112131415

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
37km/h · peak gust
21%lowest humidity

It had gone one day without rain (1 mm or more) when it started.

This area had burned before

83% of the perimeter overlaps earlier fires recorded since 2016: 1,263 ha in 2016, 2,308 ha in 2017, 664 ha in 2018, 3,544 ha in 2019, 3,529 ha in 2020, 11,845 ha in 2021, 2,403 ha in 2022, 11,661 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 18,717 ha that had burned before.

What happened to each town

  1. Apuí 20,647 inhabitants where it started
    22,710 ha reached on 17 Jul
    0.4 %

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)
13 Jul 32.8 °C 40 % 34 km/h 0.0 mm High 28
14 Jul 33.4 °C 37 % 29 km/h 0.0 mm High 29
15 Jul 34.7 °C 29 % 30 km/h 0.0 mm High 33
16 Jul 35.1 °C 26 % 36 km/h 0.0 mm High 37
17 Jul 34.9 °C 29 % 29 km/h 0.0 mm High 35
18 Jul 35.3 °C 24 % 30 km/h 0.0 mm Very high 38
19 Jul 35.9 °C 26 % 24 km/h 0.0 mm High 35
20 Jul 36.0 °C 27 % 29 km/h 0.0 mm High 37
21 Jul 36.2 °C 28 % 32 km/h 0.0 mm Very high 38
22 Jul 35.7 °C 27 % 30 km/h 0.0 mm Very high 38
23 Jul 35.4 °C 28 % 29 km/h 0.0 mm High 38
24 Jul 35.7 °C 28 % 25 km/h 0.0 mm High 37
25 Jul 35.6 °C 29 % 20 km/h 0.0 mm High 36
26 Jul 35.4 °C 28 % 27 km/h 0.0 mm Very high 38
27 Jul 34.9 °C 27 % 29 km/h 0.0 mm Very high 38
28 Jul 35.2 °C 31 % 28 km/h 0.0 mm High 37
29 Jul 36.1 °C 29 % 34 km/h 0.0 mm Very high 39
30 Jul 36.8 °C 26 % 34 km/h 0.0 mm Very high 40
31 Jul 36.1 °C 29 % 27 km/h 0.0 mm Very high 38
1 Aug 36.0 °C 32 % 25 km/h 0.0 mm High 36
2 Aug 35.3 °C 32 % 22 km/h 0.0 mm High 35
3 Aug 35.2 °C 36 % 28 km/h 0.0 mm High 35
4 Aug 35.7 °C 29 % 33 km/h 0.0 mm High 38
5 Aug 35.7 °C 27 % 33 km/h 0.0 mm High 37
6 Aug 34.2 °C 35 % 25 km/h 0.0 mm High 35
7 Aug 37.2 °C 24 % 26 km/h 0.0 mm High 37
8 Aug 37.8 °C 21 % 24 km/h 0.0 mm Very high 39
9 Aug 37.3 °C 25 % 28 km/h 0.0 mm Very high 40
10 Aug 33.9 °C 34 % 37 km/h 0.0 mm Very high 40
11 Aug 34.0 °C 28 % 21 km/h 0.0 mm High 36
12 Aug 34.7 °C 29 % 32 km/h 0.0 mm High 37
13 Aug 34.6 °C 29 % 23 km/h 0.0 mm High 37
14 Aug 34.6 °C 42 % 24 km/h 0.3 mm High 32
15 Aug 34.3 °C 49 % 31 km/h 6.1 mm Low 7
16 Aug after 33.2 °C 52 % 30 km/h 6.3 mm Very low 3
17 Aug after 34.8 °C 39 % 22 km/h 0.0 mm Moderate 14
18 Aug after 34.2 °C 46 % 24 km/h 0.1 mm Moderate 18
19 Aug after 34.5 °C 42 % 31 km/h 0.1 mm Moderate 20
20 Aug after 35.0 °C 37 % 27 km/h 0.0 mm High 23
21 Aug after 34.5 °C 39 % 26 km/h 0.0 mm High 23
22 Aug after 37.1 °C 31 % 26 km/h 0.0 mm High 28
23 Aug after 36.9 °C 32 % 25 km/h 0.0 mm High 29
24 Aug after 36.1 °C 34 % 35 km/h 0.1 mm High 29
25 Aug after 34.9 °C 39 % 31 km/h 0.1 mm High 30
26 Aug after 33.9 °C 33 % 32 km/h 0.0 mm High 32
27 Aug after 35.7 °C 30 % 25 km/h 0.0 mm High 30
28 Aug after 35.8 °C 29 % 22 km/h 0.0 mm High 30
29 Aug after 31.3 °C 52 % 26 km/h 0.8 mm Moderate 18
30 Aug after 36.0 °C 29 % 30 km/h 0.0 mm High 31
31 Aug after 37.0 °C 29 % 29 km/h 0.0 mm High 33
1 Sept after 36.4 °C 30 % 27 km/h 0.0 mm High 33

Before and after, from space

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

Before · 6 Jul 2024
After · 22 Aug 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 6 August 2024 the air beside the fire reached 466 µg/m³ of PM2.5. That day averaged 272: 18 times the WHO daily guideline (15).

PM2.5 peak466 µg/m³
Days over the guideline27 days
PM10665 µg/m³
Optical depth3.33
111213141516171819202122232425262728293031123456789101112131415161718
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 · 2,435Every 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 Apuí fire last?
GWIS (Copernicus) dates it between 13 July 2024 and 15 August 2024: 34 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 22,593 hectares (225.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Apuí (22,710 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 37.8 °C, humidity dropped to 21 % and gusts hit 37 km/h. The fire danger index (FWI) reached 40, 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.