Skip to content
worldfires
BR · Brazil · →

Corrente fire, October 2025 Corrente, Formosa do Rio Preto

Out · last detection 10 Oct 2025, 16:15 UTC

The fire started on 5 October 2025 in Corrente, Brazil, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,481 hectares from heat detections, spread across 2 municipalities.

It is the 635th largest in Piaui since 2016 (of 804 with a page). Number 580 in Brazil in 2025, of 714.

Burnt area
3,481ha
GWIS perimeter (Copernicus)
Duration
6days
5 Oct 2025 – 10 Oct 2025
Municipalities hit
2
municipalities
Started on
5 Oct
2025
Heat detections
88
in a single hotspot: 77 MW
Danger at start
50
Extreme · FWI index
Energy released
1.1GW
sum of detected power

Where it burned

10 Oct 2025
HOTSPOTS BY DAY 5 Oct10 Oct

How it evolved, day by day

5678910

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
46km/h · peak gust
20%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 1.3 mm on 19 Oct.

This area had burned before

8% of the perimeter overlaps earlier fires recorded since 2016: 183 ha in 2017, 65 ha in 2020, 36 ha in 2021.

What happened to each town

  1. Corrente 27,278 inhabitants where it started
    3,465 ha reached on 5 Oct
    1.1 %
  2. Formosa do Rio Preto 25,899 inhabitants
    38 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)
5 Oct 33.5 °C 20 % 45 km/h 0.0 mm Extreme 50
6 Oct 34.1 °C 26 % 46 km/h 0.0 mm Very high 48
7 Oct 34.4 °C 25 % 39 km/h 0.0 mm Very high 45
8 Oct 35.0 °C 22 % 39 km/h 0.0 mm Very high 46
9 Oct 33.2 °C 27 % 38 km/h 0.0 mm Very high 45
10 Oct 34.0 °C 26 % 42 km/h 0.0 mm Very high 46
11 Oct after 33.7 °C 25 % 42 km/h 0.0 mm Very high 47
12 Oct after 32.3 °C 30 % 37 km/h 0.0 mm Very high 42
13 Oct after 33.5 °C 27 % 39 km/h 0.0 mm Very high 41
14 Oct after 32.2 °C 30 % 42 km/h 0.0 mm Very high 42
15 Oct after 33.8 °C 24 % 39 km/h 0.0 mm Very high 40
16 Oct after 34.9 °C 22 % 38 km/h 0.0 mm Very high 42
17 Oct after 35.3 °C 22 % 45 km/h 0.0 mm Very high 47
18 Oct after 34.9 °C 21 % 33 km/h 0.0 mm Very high 42
19 Oct after 31.8 °C 39 % 34 km/h 1.3 mm High 23

Before and after, from space

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

Before · 28 Sept 2025
After · 17 Oct 2025

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

The smoke

CAMS · Copernicus

On 8 October 2025 the air beside the fire reached 31 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak31 µg/m³
Days over the guideline0 days
PM1032 µg/m³
Optical depth0.52
345678910111213
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Detections table · 88Every 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 Corrente fire last?
GWIS (Copernicus) dates it between 5 October 2025 and 10 October 2025: 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 3,481 hectares (34.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Corrente (3,465 ha, 1.1 %); Formosa do Rio Preto (38 ha, 0.0 %).
What was the weather like?
During the fire the temperature reached 35.0 °C, humidity dropped to 20 % and gusts hit 46 km/h. The fire danger index (FWI) reached 50, 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

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.