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Aquidauana fire, September 2016 Rio Verde de Mato Grosso, Aquidauana

Out · last detection 3 Oct 2016, 04:42 UTC

The fire started on 22 September 2016 in Aquidauana, Brazil, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,890 hectares from heat detections, spread across 2 municipalities.

It is the 297th largest in Mato Grosso do Sul since 2016 (of 496 with a page). Number 285 in Brazil in 2016, of 648.

Compare with…

Suggestions: Aquidauana · 2017Aquidauana · 2017

Burnt area
4,890ha
GWIS perimeter (Copernicus)
Duration
12days
22 Sept 2016 – 3 Oct 2016
Municipalities hit
2
municipalities
Started on
22 Sept
2016
Heat detections
145
in a single hotspot: 70 MW
Danger at start
27
High · FWI index
Average daily power
182MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 22 Sept3 Oct
3 Oct 2016

How it evolved, day by day

22 Sept 2016 · 19 MW · 4 23 Sept 2016 · 114 MW · 6 24 Sept 2016 · 33 MW · 5 25 Sept 2016 · 5 MW · 1 26 Sept 2016 · 479 MW · 18 28 Sept 2016 · 11 MW · 1 29 Sept 2016 · 324 MW · 25 30 Sept 2016 · 772 MW · 43 1 Oct 2016 · 141 MW · 21 2 Oct 2016 · 97 MW · 19 3 Oct 2016 · 2 MW · 2
22 Sept 25 Sept 30 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

38°high
37km/h · peak gust
19%lowest humidity

It had gone 16 days without rain (1 mm or more) when it started. Rain came after the fire: 7.3 mm on 4 Oct.

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 3.1% of the area of London (49 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. Rio Verde de Mato Grosso 19,818 inhabitants
    3,681 ha reached on 24 Sept
    0.4 %
  2. Aquidauana 46,803 inhabitants where it started
    1,234 ha reached on 22 Sept
    0.1 %

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)

Day High Min. humidity Peak gust Rain Danger (FWI)
22 Sept 35.2 °C 24 % 26 km/h 0.0 mm High 27
23 Sept 37.5 °C 22 % 28 km/h 0.0 mm High 28
24 Sept 33.2 °C 28 % 34 km/h 0.0 mm High 32
25 Sept 33.2 °C 35 % 37 km/h 0.0 mm High 29
26 Sept 34.7 °C 32 % 22 km/h 0.0 mm High 25
27 Sept 36.2 °C 29 % 27 km/h 0.0 mm High 28
28 Sept 36.9 °C 24 % 29 km/h 0.0 mm High 31
29 Sept 38.2 °C 19 % 22 km/h 0.0 mm High 32
30 Sept 38.1 °C 20 % 18 km/h 0.0 mm High 35
1 Oct 37.6 °C 20 % 29 km/h 0.0 mm Very high 40
2 Oct 37.5 °C 26 % 31 km/h 0.0 mm Very high 39
3 Oct 33.7 °C 43 % 34 km/h 4.6 mm Low 8
4 Oct after 29.9 °C 56 % 23 km/h 7.3 mm Very low 2

Its twins: fires that started in the same weather

It started with an FWI of 27.1, a minimum humidity of 24% and 16 days without rain. Fires in the area that started in weather like this since 2016: 18.

FWI at the start 27.1
Minimum humidity 24 %
Days without rain 16
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Aquidauana fire, September 2017
3,616 ha 7 days FWI 28.9 Min. humidity 23 % 162 km away, in 2017

First rain (1 mm or more) after it ended: 2.1 mm on 11 Sept.

What happened to them

10 days
median duration
4,272 ha
median area
6 %
went past 10,000 ha
2.8 mm
rain at the end (median; 15 of 18 had it)

It burned an area similar to its twins (4,890 ha against a median of 4,272 ha) and lasted 12 days, against 10 days.

In 3 of 18, 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 2.8 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

7.3 mmfirst rain
4 Octthe day after it ended
37km/h · max. gust

It was considered over on 3 Oct, and on 4 Oct 7.3 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 15 of 18, with a median of 2.8 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 · 15 Sept 2016
After · 10 Oct 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 · 145Every 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

Frequently asked questions

How long did the Aquidauana fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 22 September 2016 to 3 October 2016 (12 days). The perimeter dates it from 24 September 2016 to 3 October 2016.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 4,890 hectares (48.9 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Rio Verde de Mato Grosso (3,681 ha, 0.4 %); Aquidauana (1,234 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 38.2 °C, humidity dropped to 19 % and gusts hit 37 km/h. The fire danger index (FWI) reached 40, 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.
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: 18. Their median duration was 10 days and their median area 4,272 ha; 6 % went past 10,000 ha. In 3 of 18, 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 2.8 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. Start date: 24 September 2016 → 22 September 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 24 September 2016 to 3 October 2016. 145 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.