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Lábrea fire, 25 August 2022 Lábrea

Out · last detection 10 Sept 2022, 18:07 UTC

The fire started on 25 August 2022 in Lábrea, Brazil, and satellites saw it burning for 17 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 19,125 hectares from heat detections, spread across a single municipality.

It is the 13th largest in Amazonas since 2016 (of 450 with a page). Number 38 in Brazil in 2022, of 687.

Compare with…
Burnt area
19,125ha
GWIS perimeter (Copernicus)
Duration
17days
25 Aug 2022 – 10 Sept 2022
Municipalities hit
1
municipalities
Started on
25 Aug
2022
Heat detections
1,965
in a single hotspot: 488 MW
Danger at start
19
Moderate · FWI index
Average daily power
1.8GW
detected power per day, on average

Where it burned

10 Sept 2022
HOTSPOTS BY DAY 25 Aug10 Sept

How it evolved, day by day

25 Aug 2022 · 988 MW · 73 26 Aug 2022 · 907 MW · 44 27 Aug 2022 · 879 MW · 69 28 Aug 2022 · 89 MW · 45 30 Aug 2022 · 68 MW · 10 31 Aug 2022 · 237 MW · 28 1 Sept 2022 · 2,849 MW · 89 2 Sept 2022 · 2,152 MW · 143 3 Sept 2022 · 1,300 MW · 133 4 Sept 2022 · 5,601 MW · 203 5 Sept 2022 · 9,128 MW · 383 6 Sept 2022 · 2,522 MW · 149 7 Sept 2022 · 1,065 MW · 117 8 Sept 2022 · 652 MW · 86 9 Sept 2022 · 389 MW · 66 10 Sept 2022 · 449 MW · 69
25 Aug 28 Aug 1 Sept 4 Sept 5 Sept 7 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

37°high
56km/h · peak gust
24%lowest humidity

It had gone 7 days without rain (1 mm or more) when it started. Rain came after the fire: 1.1 mm on 19 Sept.

This area had burned before

84% of the perimeter overlaps earlier fires recorded since 2016: 9,189 ha in 2016, 6,447 ha in 2017, 9,954 ha in 2018, 8,305 ha in 2019, 11,298 ha in 2020, 10,300 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 16,125 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 12% of the area of London (191 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. Lábrea 45,448 inhabitants where it started
    19,270 ha reached on 18 Aug
    0.3 %

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)
18 Aug 35.3 °C 44 % 27 km/h 0.5 mm Moderate 19
19 Aug 25.4 °C 59 % 56 km/h 5.5 mm Very low 4
20 Aug 27.8 °C 33 % 40 km/h 0.0 mm Moderate 12
21 Aug 31.0 °C 31 % 28 km/h 0.0 mm Moderate 19
22 Aug 33.7 °C 29 % 29 km/h 0.0 mm High 23
23 Aug 35.1 °C 29 % 30 km/h 0.0 mm High 24
24 Aug 35.6 °C 31 % 24 km/h 0.0 mm High 24
25 Aug 35.8 °C 29 % 18 km/h 0.0 mm High 25
26 Aug 34.2 °C 44 % 23 km/h 0.0 mm High 22
27 Aug 35.1 °C 44 % 22 km/h 0.2 mm High 23
28 Aug 35.3 °C 42 % 27 km/h 1.6 mm Moderate 14
29 Aug 29.6 °C 42 % 38 km/h 0.4 mm Moderate 21
30 Aug 33.1 °C 33 % 30 km/h 0.0 mm High 25
31 Aug 34.5 °C 35 % 16 km/h 0.0 mm High 23
1 Sept 36.0 °C 33 % 21 km/h 0.0 mm High 27
2 Sept 37.4 °C 28 % 19 km/h 0.0 mm High 31
3 Sept 34.8 °C 39 % 30 km/h 0.0 mm High 29
4 Sept 34.0 °C 33 % 38 km/h 0.0 mm High 34
5 Sept 34.2 °C 30 % 35 km/h 0.0 mm High 31
6 Sept 36.0 °C 24 % 34 km/h 0.0 mm High 35
7 Sept 36.2 °C 30 % 22 km/h 0.0 mm High 35
8 Sept 36.3 °C 36 % 33 km/h 0.0 mm High 33
9 Sept 36.5 °C 39 % 26 km/h 0.3 mm High 31
10 Sept 36.0 °C 43 % 22 km/h 0.5 mm High 27
11 Sept after 27.4 °C 77 % 22 km/h 14.6 mm Very low 0
12 Sept after 33.2 °C 48 % 18 km/h 0.1 mm Very low 4
13 Sept after 36.0 °C 41 % 24 km/h 0.3 mm Moderate 16
14 Sept after 35.9 °C 44 % 24 km/h 3.6 mm Low 7
15 Sept after 25.1 °C 67 % 42 km/h 22.7 mm Very low 0
16 Sept after 31.3 °C 46 % 28 km/h 0.0 mm Very low 4
17 Sept after 34.1 °C 44 % 21 km/h 0.1 mm Low 10
18 Sept after 33.5 °C 52 % 26 km/h 0.5 mm Low 11
19 Sept after 34.6 °C 50 % 25 km/h 1.1 mm Low 9

Before and after, from space

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

Before · 18 Aug 2022
After · 17 Sept 2022

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 26 August 2022 the air beside the fire reached 792 µg/m³ of PM2.5. That day averaged 510: 34 times the WHO daily guideline (15).

PM2.5 peak792 µg/m³
Days over the guideline22 days
PM101,132 µg/m³
Optical depth4.03
23242526272829303112345678910111213
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 · 1,965Every 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 Lábrea fire last?
GWIS (Copernicus) dates it between 25 August 2022 and 10 September 2022: 17 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 19,125 hectares (191.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Lábrea (19,270 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 37.4 °C, humidity dropped to 24 % and gusts hit 56 km/h. The fire danger index (FWI) reached 35, class 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; 2 polygons grouped in this page.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 1,965 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.