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BO · Bolivia · –

Exaltación fire, 23 September 2020 Exaltación

Out · last detection 12 Oct 2020, 05:19 UTC

The fire started on 23 September 2020 in Exaltación, Bolivia, and satellites saw it burning for 21 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 23,098 hectares from heat detections, spread across a single municipality.

It is the 42th largest in Beni since 2016 (of 859 with a page). Number 21 in Bolivia in 2020, of 210.

Burnt area
23,098ha
GWIS perimeter (Copernicus)
Duration
21days
23 Sept 2020 – 13 Oct 2020
Municipalities hit
1
municipalities
Started on
23 Sept
2020
Heat detections
1,021
in a single hotspot: 334 MW
Danger at start
17
Moderate · FWI index
Average daily power
624MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 23 Sept13 Oct
12 Oct 2020

How it evolved, day by day

23 Sept 2020 · 34 MW · 2 24 Sept 2020 · 30 MW · 4 25 Sept 2020 · 2,567 MW · 271 26 Sept 2020 · 2,869 MW · 245 27 Sept 2020 · 2,062 MW · 102 28 Sept 2020 · 332 MW · 70 29 Sept 2020 · 13 MW · 3 30 Sept 2020 · 155 MW · 15 1 Oct 2020 · 1,137 MW · 49 2 Oct 2020 · 431 MW · 42 3 Oct 2020 · 9 MW · 3 5 Oct 2020 · 1 MW · 1 6 Oct 2020 · 11 MW · 2 7 Oct 2020 · 70 MW · 4 8 Oct 2020 · 88 MW · 8 9 Oct 2020 · 856 MW · 48 10 Oct 2020 · 393 MW · 59 11 Oct 2020 · 647 MW · 57 12 Oct 2020 · 148 MW · 36
23 Sept 26 Sept 1 Oct 6 Oct 10 Oct

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
47km/h · peak gust
36%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 15 Oct.

This area had burned before

69% of the perimeter overlaps earlier fires recorded since 2016: 6,822 ha in 2016, 17,867 ha in 2017, 478 ha in 2018, 1,052 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 15,954 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 15% of the area of London (231 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. Exaltación 8,012 inhabitants where it started
    23,269 ha reached on 23 Sept
    0.9 %

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 2020
Built-up area0.90 ha
Residents≈ 60

Inside the perimeter there were about 0.90 hectares of built-up land and about 60 residents (GHSL 2020, 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)
23 Sept 34.5 °C 39 % 25 km/h 0.0 mm Moderate 17
24 Sept 35.4 °C 44 % 17 km/h 0.2 mm Moderate 15
25 Sept 36.6 °C 42 % 30 km/h 0.1 mm High 24
26 Sept 34.9 °C 49 % 47 km/h 0.0 mm High 33
27 Sept 34.5 °C 49 % 43 km/h 0.2 mm High 29
28 Sept 30.8 °C 62 % 32 km/h 2.6 mm Moderate 16
29 Sept 32.6 °C 56 % 28 km/h 1.5 mm Very low 3
30 Sept 33.9 °C 50 % 36 km/h 0.0 mm Moderate 17
1 Oct 35.8 °C 39 % 33 km/h 0.0 mm High 26
2 Oct 36.1 °C 46 % 30 km/h 0.3 mm High 25
3 Oct 33.8 °C 54 % 29 km/h 1.1 mm Moderate 20
4 Oct 36.9 °C 45 % 21 km/h 0.0 mm Moderate 15
5 Oct 35.6 °C 44 % 27 km/h 0.5 mm High 25
6 Oct 34.9 °C 51 % 29 km/h 0.3 mm High 24
7 Oct 33.9 °C 52 % 27 km/h 0.5 mm High 24
8 Oct 36.1 °C 43 % 27 km/h 0.0 mm High 26
9 Oct 37.1 °C 36 % 38 km/h 0.0 mm High 36
10 Oct 37.1 °C 39 % 37 km/h 0.0 mm High 35
11 Oct 36.7 °C 42 % 39 km/h 0.1 mm High 38
12 Oct 34.7 °C 49 % 33 km/h 0.2 mm High 31
13 Oct 35.8 °C 45 % 22 km/h 1.6 mm High 24
14 Oct after 35.3 °C 46 % 25 km/h 0.0 mm Moderate 15
15 Oct after 32.9 °C 62 % 28 km/h 1.4 mm Moderate 20

Its twins: fires that started in the same weather

It started with an FWI of 17.1, a minimum humidity of 39% and rain the day before. Fires in the area that started in weather like this since 2016: 36.

FWI at the start 17.1
Minimum humidity 39 %
Days without rain 0
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Exaltación fire, September 2025
7,574 ha 3 days FWI 16.3 Min. humidity 39 % 24 km away, in 2025

First rain (1 mm or more) after it ended: 5.1 mm on 29 Sept.

What happened to them

9 days
median duration
4,722 ha
median area
17 %
went past 10,000 ha
4.5 mm
rain at the end (median; 35 of 36 had it)

It was 4.9 times larger than the median of its twins and lasted 21 days, against 9 days.

Only 3 of its 36 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 1 of 36, 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 4.5 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

1.4 mmfirst rain
15 Oct2 days after it ended
47km/h · max. gust

It was considered over on 13 Oct, and on 15 Oct 1.4 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 35 of 36, with a median of 4.5 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 · 16 Sept 2020
After · 20 Oct 2020

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 · 1,021Every 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 Bolivia

Frequently asked questions

How long did the Exaltación fire last?
GWIS (Copernicus) dates it between 23 September 2020 and 13 October 2020: 21 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 23,098 hectares (231.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Exaltación (23,269 ha, 0.9 %).
What was the weather like?
During the fire the temperature reached 37.1 °C, humidity dropped to 36 % and gusts hit 47 km/h. The fire danger index (FWI) reached 38, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Bolivia (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: 36. Their median duration was 9 days and their median area 4,722 ha; 17 % went past 10,000 ha. Only 3 of its 36 twins burned more. The weather on the first day does not explain everything: the wind in the following days, the fuel and the firefighting also count. In 1 of 36, 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 4.5 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: 119 · 110 · Emergency number and official warnings

Satellite cross-check

History of this page Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

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 119 · 110.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 1,021 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 2020, 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 ADM3 (Public Domain). 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.