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Mansidão fire, 6 October 2022 Mansidão

Out · last detection 23 Oct 2022, 16:19 UTC

The fire started on 6 October 2022 in Mansidão, Brazil, and satellites saw it burning for 18 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,919 hectares from heat detections, spread across a single municipality.

It is the 154th largest in Bahia since 2016 (of 466 with a page). Number 200 in Brazil in 2022, of 687.

Burnt area
6,919ha
GWIS perimeter (Copernicus)
Duration
18days
6 Oct 2022 – 23 Oct 2022
Municipalities hit
1
municipalities
Started on
6 Oct
2022
Heat detections
435
in a single hotspot: 131 MW
Danger at start
49
Very high · FWI index
Energy released
5.6GW
sum of detected power

Where it burned

23 Oct 2022
HOTSPOTS BY DAY 6 Oct23 Oct

How it evolved, day by day

67891011121314151617181920212223

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

The weather it burned in

37°high
49km/h · peak gust
15%lowest humidity

It had gone 10 days without rain (1 mm or more) when it started. Rain came after the fire: 5.0 mm on 24 Oct.

This area had burned before

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

What happened to each town

  1. Mansidão 13,919 inhabitants where it started
    6,958 ha reached on 6 Oct
    2.2 %

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)
6 Oct 36.2 °C 16 % 45 km/h 0.0 mm Very high 49
7 Oct 36.0 °C 21 % 42 km/h 0.0 mm Extreme 51
8 Oct 37.0 °C 21 % 24 km/h 0.0 mm Very high 44
9 Oct 36.3 °C 15 % 43 km/h 0.0 mm Extreme 51
10 Oct 34.0 °C 21 % 47 km/h 0.0 mm Extreme 51
11 Oct 35.0 °C 17 % 49 km/h 0.0 mm Extreme 54
12 Oct 33.7 °C 21 % 44 km/h 0.0 mm Extreme 50
13 Oct 34.6 °C 20 % 44 km/h 0.0 mm Very high 50
14 Oct 35.8 °C 20 % 41 km/h 0.0 mm Very high 50
15 Oct 35.0 °C 21 % 42 km/h 0.0 mm Extreme 50
16 Oct 34.3 °C 21 % 41 km/h 0.0 mm Extreme 51
17 Oct 34.8 °C 18 % 43 km/h 0.0 mm Extreme 51
18 Oct 35.3 °C 18 % 47 km/h 0.0 mm Extreme 54
19 Oct 35.3 °C 17 % 47 km/h 0.0 mm Extreme 54
20 Oct 35.1 °C 18 % 44 km/h 0.0 mm Extreme 53
21 Oct 35.5 °C 20 % 41 km/h 0.0 mm Extreme 53
22 Oct 35.2 °C 24 % 39 km/h 0.0 mm Very high 49
23 Oct 33.9 °C 30 % 28 km/h 0.0 mm Very high 40
24 Oct after 32.4 °C 37 % 36 km/h 5.0 mm Low 9

Before and after, from space

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

Before · 29 Sept 2022
After · 30 Oct 2022

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 17 October 2022 the air beside the fire reached 54 µg/m³ of PM2.5. That day averaged 16: 1.1 times the WHO daily guideline (15).

PM2.5 peak54 µg/m³
Days over the guideline1 day
PM1077 µg/m³
Optical depth0.67
4567891011121314151617181920212223242526
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 · 435Every 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 Mansidão fire last?
GWIS (Copernicus) dates it between 6 October 2022 and 23 October 2022: 18 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 6,919 hectares (69.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Mansidão (6,958 ha, 2.2 %).
What was the weather like?
During the fire the temperature reached 37.0 °C, humidity dropped to 15 % and gusts hit 49 km/h. The fire danger index (FWI) reached 54, 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.