How long did the Manicoré fire last?

GWIS (Copernicus) dates it between 29 July 2021 and 13 August 2021: 16 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 4,187 hectares (41.9 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Manicoré (4,222 ha, 0.1 %).

What was the weather like?

During the fire the temperature reached 38.1 °C, humidity dropped to 17 % and gusts hit 42 km/h. The fire danger index (FWI) reached 43, 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.

BR · Brazil · 2021-07-29 → 2021-08-13

Manicoré fire, 29 July 2021 Manicoré

Out · last detection 13 Aug 2021, 17:35 UTC

The fire started on 29 July 2021 in Manicoré, Brazil, and satellites saw it burning for 16 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,187 hectares from heat detections, spread across a single municipality.

It is the 234th largest in Amazonas since 2016 (of 450 with a page). Number 509 in Brazil in 2021, of 814.

Burnt area: 4,187ha; GWIS perimeter (Copernicus)
Duration: 16days; 29 Jul 2021 – 13 Aug 2021
Municipalities hit: 1; municipalities
Started on: 29 Jul; 2021
Heat detections: 259; in a single hotspot: 163 MW
Danger at start: 41; Very high · FWI index
Energy released: 5.4GW; sum of detected power

Play back 13 Aug 2021

HOTSPOTS BY DAY 29 Jul13 Aug

How it evolved, day by day

29303112345678910111213

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

42km/h · peak gust

17%lowest humidity

It had gone 30 days without rain (1 mm or more) when it started. Rain came after the fire: 5.9 mm on 29 Aug.

This area had burned before

98% of the perimeter overlaps earlier fires recorded since 2016: 834 ha in 2016, 2,620 ha in 2017, 3,790 ha in 2019, 3,666 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 4,096 ha that had burned before.

What happened to each town

Manicoré where it started

4,222 ha reached on 29 Jul

0.1 %

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)
29 Jul	32.1 °C	26 %	42 km/h	0.0 mm	Very high 41
30 Jul	33.0 °C	24 %	33 km/h	0.0 mm	High 37
31 Jul	34.1 °C	23 %	24 km/h	0.0 mm	High 34
1 Aug	36.3 °C	23 %	37 km/h	0.0 mm	Very high 40
2 Aug	35.5 °C	27 %	34 km/h	0.0 mm	Very high 39
3 Aug	34.2 °C	30 %	28 km/h	0.0 mm	High 36
4 Aug	35.6 °C	26 %	28 km/h	0.0 mm	High 36
5 Aug	37.6 °C	17 %	30 km/h	0.0 mm	Very high 43
6 Aug	36.9 °C	22 %	24 km/h	0.0 mm	Very high 41
7 Aug	35.2 °C	28 %	25 km/h	0.0 mm	High 37
8 Aug	35.5 °C	32 %	25 km/h	0.0 mm	High 36
9 Aug	36.6 °C	27 %	24 km/h	0.0 mm	High 35
10 Aug	36.7 °C	23 %	26 km/h	0.0 mm	High 37
11 Aug	37.5 °C	22 %	25 km/h	0.0 mm	High 36
12 Aug	38.1 °C	20 %	27 km/h	0.0 mm	Very high 39
13 Aug	36.4 °C	25 %	26 km/h	0.0 mm	Very high 43
14 Aug after	33.9 °C	34 %	29 km/h	0.0 mm	High 36
15 Aug after	35.3 °C	36 %	24 km/h	0.2 mm	High 34
16 Aug after	36.1 °C	35 %	26 km/h	0.6 mm	High 28
17 Aug after	35.8 °C	34 %	27 km/h	0.0 mm	High 30
18 Aug after	36.7 °C	23 %	26 km/h	0.0 mm	High 36
19 Aug after	36.5 °C	22 %	21 km/h	0.0 mm	High 38
20 Aug after	35.2 °C	31 %	29 km/h	0.0 mm	High 38
21 Aug after	36.4 °C	28 %	30 km/h	0.0 mm	High 35
22 Aug after	38.0 °C	24 %	25 km/h	0.0 mm	High 38
23 Aug after	37.2 °C	21 %	27 km/h	0.0 mm	Very high 40
24 Aug after	36.7 °C	32 %	30 km/h	0.0 mm	Very high 38
25 Aug after	37.0 °C	35 %	32 km/h	0.2 mm	High 35
26 Aug after	38.5 °C	26 %	28 km/h	0.0 mm	High 37
27 Aug after	36.8 °C	32 %	18 km/h	0.0 mm	High 37
28 Aug after	34.7 °C	40 %	36 km/h	0.7 mm	High 27
29 Aug after	30.1 °C	63 %	22 km/h	5.9 mm	Very low 3

Before and after, from space

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

↔

Before · 22 Jul 2021

After · 20 Aug 2021

Before After

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

Detections table · 259Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

All fires in Brazil ›

Frequently asked questions

How long did the Manicoré fire last?: GWIS (Copernicus) dates it between 29 July 2021 and 13 August 2021: 16 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 4,187 hectares (41.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Manicoré (4,222 ha, 0.1 %).
What was the weather like?: During the fire the temperature reached 38.1 °C, humidity dropped to 17 % and gusts hit 42 km/h. The fire danger index (FWI) reached 43, 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

INPE · Programa Queimadas ↗
IBAMA · Prevfogo ↗

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

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.

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What really happened?

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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.

Where it burned