Lábrea fire, 21 July 2024 Lábrea
The fire started on 21 July 2024 in Lábrea, Brazil, and satellites saw it burning for 15 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,347 hectares from heat detections, spread across a single municipality.
It is the 142th largest in Amazonas since 2016 (of 450 with a page). Number 626 in Brazil in 2024, of 1301.
- Burnt area
- 5,347ha
- GWIS perimeter (Copernicus)
- Duration
- 15days
- 21 Jul 2024 – 4 Aug 2024
- Municipalities hit
- 1
- municipalities
- Started on
- 21 Jul
- 2024
- Heat detections
- 368
- in a single hotspot: 251 MW
- Danger at start
- 31
- High · FWI index
- Energy released
- 4.7GW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 10 days without rain (1 mm or more) when it started.
This area had burned before
98% of the perimeter overlaps earlier fires recorded since 2016: 467 ha in 2019, 4,754 ha in 2021, 5,611 ha in 2022, 3,872 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 5,235 ha that had burned before.
- 3,835 ha Lábrea fire, August 2022 26,762 ha in total; the hectares shown are those it shares with this fire
- 3,011 ha Lábrea fire, August 2023 5,065 ha in total; the hectares shown are those it shares with this fire
- 1,884 ha Lábrea fire, August 2021 4,974 ha in total; the hectares shown are those it shares with this fire
What happened to each town
-
5,396 ha reached on 17 Jul0.1 %
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) |
|---|---|---|---|---|---|
| 17 Jul | 33.2 °C | 32 % | 31 km/h | 0.0 mm | High 31 |
| 18 Jul | 34.2 °C | 29 % | 23 km/h | 0.0 mm | High 32 |
| 19 Jul | 33.9 °C | 30 % | 21 km/h | 0.0 mm | High 30 |
| 20 Jul | 36.2 °C | 23 % | 29 km/h | 0.0 mm | High 37 |
| 21 Jul | 36.1 °C | 26 % | 23 km/h | 0.0 mm | High 36 |
| 22 Jul | 36.3 °C | 26 % | 25 km/h | 0.0 mm | High 36 |
| 23 Jul | 36.4 °C | 21 % | 27 km/h | 0.0 mm | Very high 39 |
| 24 Jul | 35.7 °C | 29 % | 21 km/h | 0.0 mm | High 36 |
| 25 Jul | 35.2 °C | 33 % | 17 km/h | 0.0 mm | High 35 |
| 26 Jul | 36.1 °C | 32 % | 20 km/h | 0.0 mm | High 33 |
| 27 Jul | 36.4 °C | 29 % | 21 km/h | 0.0 mm | High 34 |
| 28 Jul | 35.9 °C | 28 % | 24 km/h | 0.0 mm | High 34 |
| 29 Jul | 36.2 °C | 28 % | 24 km/h | 0.0 mm | High 35 |
| 30 Jul | 35.0 °C | 30 % | 30 km/h | 0.0 mm | Very high 38 |
| 31 Jul | 35.2 °C | 32 % | 25 km/h | 0.0 mm | High 37 |
| 1 Aug | 34.9 °C | 37 % | 22 km/h | 0.0 mm | High 34 |
| 2 Aug | 35.7 °C | 37 % | 31 km/h | 0.0 mm | High 34 |
| 3 Aug | 35.0 °C | 45 % | 30 km/h | 0.4 mm | High 29 |
| 4 Aug | 35.3 °C | 37 % | 27 km/h | 0.6 mm | High 28 |
| 5 Aug after | 36.3 °C | 33 % | 28 km/h | 0.2 mm | High 30 |
| 6 Aug after | 34.1 °C | 40 % | 25 km/h | 0.0 mm | High 30 |
| 7 Aug after | 33.4 °C | 44 % | 36 km/h | 0.0 mm | High 28 |
| 8 Aug after | 36.2 °C | 33 % | 26 km/h | 0.1 mm | High 29 |
| 9 Aug after | 26.9 °C | 60 % | 42 km/h | 0.0 mm | High 26 |
| 10 Aug after | 27.6 °C | 36 % | 40 km/h | 0.0 mm | High 30 |
| 11 Aug after | 30.8 °C | 32 % | 22 km/h | 0.0 mm | High 30 |
| 12 Aug after | 33.8 °C | 28 % | 33 km/h | 0.0 mm | High 35 |
| 13 Aug after | 33.7 °C | 19 % | 33 km/h | 0.0 mm | Very high 42 |
| 14 Aug after | 34.3 °C | 25 % | 22 km/h | 0.0 mm | Very high 39 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · CopernicusOn 24 July 2024 the air beside the fire reached 356 µg/m³ of PM2.5. That day averaged 178: 12 times the WHO daily guideline (15).
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 · 368Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Lábrea fire last?
- GWIS (Copernicus) dates it between 21 July 2024 and 4 August 2024: 15 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 5,347 hectares (53.5 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered Lábrea (5,396 ha, 0.1 %).
- What was the weather like?
- During the fire the temperature reached 36.4 °C, humidity dropped to 21 % and gusts hit 31 km/h. The fire danger index (FWI) reached 39, 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
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.