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Formoso do Araguaia fire, June 2016 Formoso do Araguaia

Out · last detection 19 Jul 2016, 05:06 UTC

The fire started on 30 June 2016 in Formoso do Araguaia, Brazil, and satellites saw it burning for 20 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 5,152 hectares from heat detections, spread across a single municipality.

It is the 473th largest in Tocantins since 2016 (of 1036 with a page). Number 264 in Brazil in 2016, of 648.

Burnt area
5,152ha
GWIS perimeter (Copernicus)
Duration
20days
30 Jun 2016 – 19 Jul 2016
Municipalities hit
1
municipalities
Started on
30 Jun
2016
Heat detections
214
in a single hotspot: 75 MW
Danger at start
54
Extreme · FWI index
Average daily power
134MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 30 Jun19 Jul
19 Jul 2016

How it evolved, day by day

30 Jun 2016 · 91 MW · 4 1 Jul 2016 · 302 MW · 22 2 Jul 2016 · 511 MW · 41 3 Jul 2016 · 136 MW · 10 4 Jul 2016 · 46 MW · 7 5 Jul 2016 · 167 MW · 19 6 Jul 2016 · 106 MW · 14 7 Jul 2016 · 266 MW · 15 8 Jul 2016 · 59 MW · 8 9 Jul 2016 · 96 MW · 10 10 Jul 2016 · 32 MW · 7 11 Jul 2016 · 257 MW · 29 12 Jul 2016 · 33 MW · 5 13 Jul 2016 · 56 MW · 8 14 Jul 2016 · 107 MW · 12 16 Jul 2016 · 6 MW · 1 19 Jul 2016 · 3 MW · 2
2 Jul 8 Jul 12 Jul 19 Jul

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
44km/h · peak gust
19%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

10 km
It burned the equivalent of 3.3% of the area of London (52 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. Formoso do Araguaia where it started
    5,180 ha reached on 30 Jun
    0.4 %

Burnt area inside each municipality, from crossing the GWIS perimeter with administrative boundaries. The distance runs from the point marking the centre of each area to the nearest fire: staying a kilometre away does not mean it reached the houses.

People and buildings inside the perimeter

GHSL 2015
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2015, satellite-based estimate).

This is an estimate on 100 m cells, made from satellite imagery and census data: it does not mean that homes burned or that anyone was harmed. The perimeter also contains land that never burned.

Source: Global Human Settlement Layer (GHS-BUILT-S and GHS-POP R2023A), European Commission Joint Research Centre (JRC), © European Union, CC BY 4.0. Sum inside the perimeter computed by WorldFires. human-settlement.emergency.copernicus.eu

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)

Started with Extreme FWI: 46 % of the area in Brazil 60 days without rain: 55 % of the area in Brazil

Day High Min. humidity Peak gust Rain Danger (FWI)
30 Jun 33.3 °C 28 % 39 km/h 0.0 mm Extreme 54
1 Jul 33.4 °C 28 % 42 km/h 0.0 mm Extreme 57
2 Jul 33.1 °C 27 % 42 km/h 0.0 mm Extreme 58
3 Jul 33.4 °C 31 % 44 km/h 0.0 mm Extreme 57
4 Jul 34.1 °C 30 % 41 km/h 0.0 mm Extreme 58
5 Jul 34.2 °C 34 % 42 km/h 0.0 mm Extreme 58
6 Jul 34.0 °C 31 % 36 km/h 0.0 mm Extreme 54
7 Jul 34.7 °C 27 % 25 km/h 0.0 mm Very high 43
8 Jul 35.8 °C 25 % 19 km/h 0.0 mm Very high 40
9 Jul 36.6 °C 24 % 25 km/h 0.0 mm Extreme 52
10 Jul 35.8 °C 26 % 29 km/h 0.0 mm Extreme 53
11 Jul 35.8 °C 26 % 28 km/h 0.0 mm Extreme 53
12 Jul 35.5 °C 26 % 27 km/h 0.0 mm Extreme 52
13 Jul 36.1 °C 24 % 26 km/h 0.0 mm Very high 50
14 Jul 36.4 °C 25 % 24 km/h 0.0 mm Extreme 51
15 Jul 35.0 °C 26 % 20 km/h 0.0 mm Very high 45
16 Jul 36.7 °C 24 % 15 km/h 0.0 mm Very high 41
17 Jul 35.2 °C 24 % 28 km/h 0.0 mm Extreme 50
18 Jul 35.6 °C 27 % 25 km/h 0.0 mm Very high 48
19 Jul 37.5 °C 19 % 27 km/h 0.0 mm Extreme 52
20 Jul after 37.1 °C 20 % 23 km/h 0.0 mm Very high 48
21 Jul after 36.9 °C 19 % 25 km/h 0.0 mm Extreme 54
22 Jul after 36.2 °C 24 % 26 km/h 0.0 mm Extreme 54
23 Jul after 35.6 °C 28 % 29 km/h 0.0 mm Extreme 57
24 Jul after 34.3 °C 27 % 46 km/h 0.0 mm Very extreme 73
25 Jul after 34.3 °C 29 % 36 km/h 0.0 mm Extreme 61
26 Jul after 34.8 °C 27 % 40 km/h 0.0 mm Extreme 66
27 Jul after 34.3 °C 30 % 26 km/h 0.0 mm Very high 48
28 Jul after 34.9 °C 24 % 34 km/h 0.0 mm Extreme 56
29 Jul after 35.2 °C 22 % 35 km/h 0.0 mm Extreme 58

Its twins: fires that started in the same weather

It started with an FWI of 53.6, a minimum humidity of 28% and more than two months without rain. Fires in the area that started in weather like this since 2016: 28.

FWI at the start 53.6
Minimum humidity 28 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Luciara fire, August 2016
9,486 ha 17 days FWI 55.2 Min. humidity 28 % 148 km away, in 2016

First rain (1 mm or more) after it ended: 1.0 mm on 21 Sept.

What happened to them

12 days
median duration
6,108 ha
median area
25 %
went past 10,000 ha
1.4 mm
rain at the end (median; 10 of 28 had it)

It burned an area similar to its twins (5,152 ha against a median of 6,108 ha) and lasted 20 days, against 12 days.

In 18 of 28, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 1.4 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

—first rain
—no rain in ten days
44km/h · max. gust

It was considered over on 19 Jul, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 10 of 28, with a median of 1.4 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 23 Jun 2016
After · 26 Jul 2016

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 · 214Every 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 Formoso do Araguaia fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 30 June 2016 to 19 July 2016 (20 days). The perimeter dates it from 30 June 2016 to 14 July 2016.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 5,152 hectares (51.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Formoso do Araguaia (5,180 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 37.5 °C, humidity dropped to 19 % and gusts hit 44 km/h. The fire danger index (FWI) reached 58, 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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 28. Their median duration was 12 days and their median area 6,108 ha; 25 % went past 10,000 ha. In 18 of 28, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 1.4 mm.

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 · Emergency number and official warnings

Satellite cross-check

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 14 July 2016 → 19 July 2016.

RSS Changes to this page With cross-checks and a citable version

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.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 30 June 2016 to 14 July 2016. 214 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.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2015, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

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.