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Juara fire, 28 August 2021 Juara, Nova Bandeirantes

Out · last detection 4 Sept 2021, 17:22 UTC

The fire started on 28 August 2021 in Juara, Brazil, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 6,468 hectares from heat detections, spread across 2 municipalities.

It is the 803th largest in Mato Grosso since 2016 (of 1996 with a page). Number 274 in Brazil in 2021, of 814.

Burnt area
6,468ha
GWIS perimeter (Copernicus)
Duration
8days
28 Aug 2021 – 4 Sept 2021
Municipalities hit
2
municipalities
Started on
28 Aug
2021
Heat detections
266
in a single hotspot: 76 MW
Danger at start
33
High · FWI index
Energy released
1.9GW
sum of detected power

Where it burned

4 Sept 2021
HOTSPOTS BY DAY 28 Aug4 Sept

How it evolved, day by day

282930311234

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
36km/h · peak gust
25%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 20.9 mm on 9 Sept.

This area had burned before

22% of the perimeter overlaps earlier fires recorded since 2016: 1,091 ha in 2016, 1,190 ha in 2019, 475 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 1,453 ha that had burned before.

What happened to each town

  1. Juara 34,906 inhabitants where it started
    5,739 ha reached on 28 Aug
    0.2 %
  2. Nova Bandeirantes 13,635 inhabitants
    757 ha reached on 1 Sept
    0.1 %

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)
28 Aug 34.4 °C 32 % 27 km/h 0.0 mm High 33
29 Aug 33.0 °C 35 % 31 km/h 0.1 mm High 33
30 Aug 34.7 °C 25 % 36 km/h 0.0 mm Very high 39
31 Aug 33.5 °C 35 % 32 km/h 0.0 mm High 32
1 Sept 31.2 °C 46 % 29 km/h 0.0 mm High 29
2 Sept 30.4 °C 49 % 23 km/h 0.1 mm High 24
3 Sept 31.0 °C 44 % 27 km/h 0.1 mm High 24
4 Sept 33.3 °C 36 % 30 km/h 0.0 mm High 28
5 Sept after 31.5 °C 40 % 28 km/h 0.4 mm High 28
6 Sept after 31.1 °C 52 % 36 km/h 5.0 mm Low 6
7 Sept after 33.0 °C 44 % 28 km/h 2.3 mm Low 8
8 Sept after 32.6 °C 46 % 22 km/h 2.4 mm Low 7
9 Sept after 24.2 °C 77 % 21 km/h 20.9 mm Very low 0

Before and after, from space

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

Before · 21 Aug 2021
After · 11 Sept 2021

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 · 266Every 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 Juara fire last?
GWIS (Copernicus) dates it between 28 August 2021 and 4 September 2021: 8 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 6,468 hectares (64.7 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Juara (5,739 ha, 0.2 %); Nova Bandeirantes (757 ha, 0.1 %).
What was the weather like?
During the fire the temperature reached 34.7 °C, humidity dropped to 25 % and gusts hit 36 km/h. The fire danger index (FWI) reached 39, 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.