How long did the Maués fire last?

GWIS (Copernicus) dates it between 1 August 2017 and 10 August 2017: 10 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 3,453 hectares (34.5 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire only entered Maués (3,484 ha, 0.1 %).

What was the weather like?

During the fire the temperature reached 41.3 °C, humidity dropped to 14 % and gusts hit 38 km/h. The fire danger index (FWI) reached 51, class Extreme.

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 · 2017-08-01 → 2017-08-10

Maués fire, August 2017 Maués

Out · last detection 9 Aug 2017, 17:03 UTC

The fire started on 1 August 2017 in Maués, Brazil, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,453 hectares from heat detections, spread across a single municipality.

It is the 339th largest in Amazonas since 2016 (of 450 with a page). Number 809 in Brazil in 2017, of 994.

Burnt area: 3,453ha; GWIS perimeter (Copernicus)
Duration: 10days; 1 Aug 2017 – 10 Aug 2017
Municipalities hit: 1; municipalities
Started on: 1 Aug; 2017
Heat detections: 231; in a single hotspot: 192 MW
Danger at start: 43; Very high · FWI index
Energy released: 3.7GW; sum of detected power

Play back 9 Aug 2017

HOTSPOTS BY DAY 1 Aug10 Aug

How it evolved, day by day

123456789

Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.

The weather it burned in

41°high

38km/h · peak gust

14%lowest humidity

It had gone 21 days without rain (1 mm or more) when it started.

This area had burned before

18% of the perimeter overlaps earlier fires recorded since 2016: 633 ha in 2016.

What happened to each town

Maués 61,204 inhabitants where it started

3,484 ha reached on 26 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)
26 Jul	39.1 °C	20 %	32 km/h	0.0 mm	Very high 43
27 Jul	39.4 °C	20 %	38 km/h	0.0 mm	Very high 47
28 Jul	38.7 °C	19 %	38 km/h	0.0 mm	Very high 48
29 Jul	36.7 °C	23 %	34 km/h	0.0 mm	Very high 44
30 Jul	37.6 °C	21 %	34 km/h	0.0 mm	Very high 45
31 Jul	39.0 °C	20 %	36 km/h	0.0 mm	Very high 48
1 Aug	38.6 °C	23 %	31 km/h	0.0 mm	Very high 44
2 Aug	38.7 °C	26 %	27 km/h	0.0 mm	Very high 41
3 Aug	41.3 °C	15 %	34 km/h	0.0 mm	Extreme 51
4 Aug	40.7 °C	14 %	30 km/h	0.0 mm	Very high 48
5 Aug	37.3 °C	21 %	22 km/h	0.0 mm	Very high 45
6 Aug	37.2 °C	28 %	31 km/h	0.0 mm	Very high 40
7 Aug	38.7 °C	28 %	30 km/h	0.0 mm	Very high 42
8 Aug	38.9 °C	29 %	37 km/h	1.0 mm	Very high 38
9 Aug	38.3 °C	33 %	34 km/h	1.3 mm	High 33
10 Aug	38.2 °C	37 %	33 km/h	0.9 mm	High 29
11 Aug after	35.0 °C	41 %	27 km/h	2.5 mm	Moderate 13
12 Aug after	35.5 °C	37 %	30 km/h	0.0 mm	High 24
13 Aug after	36.7 °C	34 %	32 km/h	0.0 mm	High 30
14 Aug after	37.4 °C	36 %	25 km/h	0.1 mm	High 29
15 Aug after	39.9 °C	30 %	21 km/h	0.0 mm	High 31
16 Aug after	37.6 °C	38 %	24 km/h	0.0 mm	High 33
17 Aug after	37.3 °C	35 %	33 km/h	0.0 mm	High 35
18 Aug after	38.5 °C	29 %	28 km/h	0.0 mm	High 34
19 Aug after	37.6 °C	28 %	28 km/h	0.0 mm	High 32
20 Aug after	38.9 °C	23 %	28 km/h	0.0 mm	High 38
21 Aug after	34.4 °C	32 %	32 km/h	0.2 mm	High 35
22 Aug after	36.0 °C	33 %	25 km/h	0.0 mm	High 34
23 Aug after	35.7 °C	33 %	28 km/h	0.4 mm	High 36
24 Aug after	36.7 °C	35 %	41 km/h	0.0 mm	High 38
25 Aug after	38.8 °C	21 %	32 km/h	0.0 mm	Very high 42
26 Aug after	39.8 °C	19 %	32 km/h	0.0 mm	Very high 45
27 Aug after	37.8 °C	26 %	30 km/h	0.0 mm	Very high 42

Before and after, from space

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

↔

Before · 25 Jul 2017

After · 17 Aug 2017

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 · 231Every 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 Maués fire last?: GWIS (Copernicus) dates it between 1 August 2017 and 10 August 2017: 10 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 3,453 hectares (34.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire only entered Maués (3,484 ha, 0.1 %).
What was the weather like?: During the fire the temperature reached 41.3 °C, humidity dropped to 14 % and gusts hit 38 km/h. The fire danger index (FWI) reached 51, class Extreme.
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