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Rio Sono fire, July 2017 Rio Sono, Centenário

Out · last detection 21 Jul 2017, 16:18 UTC

The fire started on 16 July 2017 in Rio Sono, Brazil, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 4,269 hectares from heat detections, spread across 2 municipalities.

It is the 753th largest in Tocantins since 2016 (of 1242 with a page). Number 588 in Brazil in 2017, of 994.

Burnt area
4,269ha
GWIS perimeter (Copernicus)
Duration
6days
16 Jul 2017 – 21 Jul 2017
Municipalities hit
2
municipalities
Started on
16 Jul
2017
Heat detections
96
in a single hotspot: 107 MW
Danger at start
42
Very high · FWI index
Energy released
1.0GW
sum of detected power

Where it burned

21 Jul 2017
HOTSPOTS BY DAY 16 Jul21 Jul

How it evolved, day by day

161718192021

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

The weather it burned in

35°high
40km/h · peak gust
27%lowest humidity

It had gone 52 days 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.

What happened to each town

  1. Rio Sono 4,841 inhabitants where it started
    4,246 ha reached on 16 Jul
    0.7 %
  2. Centenário 2,131 inhabitants
    45 ha
    0.0 %

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)
16 Jul 32.6 °C 28 % 40 km/h 0.0 mm Very high 42
17 Jul 33.5 °C 33 % 36 km/h 0.0 mm Very high 38
18 Jul 33.3 °C 36 % 35 km/h 0.0 mm Very high 39
19 Jul 34.4 °C 27 % 36 km/h 0.0 mm Very high 40
20 Jul 34.3 °C 29 % 40 km/h 0.0 mm Very high 42
21 Jul 35.1 °C 33 % 34 km/h 0.0 mm Very high 39
22 Jul after 34.9 °C 34 % 34 km/h 0.0 mm Very high 40
23 Jul after 34.6 °C 30 % 42 km/h 0.0 mm Very high 45
24 Jul after 34.6 °C 30 % 44 km/h 0.0 mm Very high 46
25 Jul after 33.9 °C 31 % 47 km/h 0.0 mm Very high 48
26 Jul after 32.8 °C 29 % 44 km/h 0.0 mm Very high 47
27 Jul after 32.5 °C 34 % 45 km/h 0.0 mm Very high 46
28 Jul after 33.1 °C 26 % 48 km/h 0.0 mm Very high 47
29 Jul after 33.9 °C 33 % 47 km/h 0.0 mm Very high 46
30 Jul after 32.7 °C 31 % 48 km/h 0.0 mm Very high 48
31 Jul after 32.9 °C 31 % 43 km/h 0.0 mm Very high 45

Before and after, from space

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

Before · 9 Jul 2017
After · 28 Jul 2017

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 · 96Every 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 Rio Sono fire last?
GWIS (Copernicus) dates it between 16 July 2017 and 21 July 2017: 6 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 4,269 hectares (42.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Rio Sono (4,246 ha, 0.7 %); Centenário (45 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 35.1 °C, humidity dropped to 27 % and gusts hit 40 km/h. The fire danger index (FWI) reached 42, 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

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.

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.