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BO · Bolivia · –

San Rafael fire, August 2017 San Rafael

Out · last detection 15 Sept 2017, 04:36 UTC

The fire started on 22 August 2017 in San Rafael, Bolivia, and satellites saw it burning for 25 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,898 hectares from heat detections, spread across a single municipality.

It is the 556th largest in Santa Cruz since 2016 (of 784 with a page). Number 87 in Bolivia in 2017, of 123.

Burnt area
3,898ha
GWIS perimeter (Copernicus)
Duration
25days
22 Aug 2017 – 15 Sept 2017
Municipalities hit
1
municipalities
Started on
22 Aug
2017
Heat detections
287
in a single hotspot: 50 MW
Danger at start
7
Low · FWI index
Average daily power
97MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 22 Aug15 Sept
15 Sept 2017

How it evolved, day by day

25 Aug 2017 · 7 MW · 2 27 Aug 2017 · 53 MW · 2 28 Aug 2017 · 48 MW · 14 29 Aug 2017 · 81 MW · 17 30 Aug 2017 · 37 MW · 7 31 Aug 2017 · 5 MW · 5 2 Sept 2017 · 35 MW · 14 3 Sept 2017 · 248 MW · 24 4 Sept 2017 · 45 MW · 14 5 Sept 2017 · 58 MW · 6 6 Sept 2017 · 5 MW · 5 7 Sept 2017 · 235 MW · 37 8 Sept 2017 · 673 MW · 70 9 Sept 2017 · 129 MW · 30 10 Sept 2017 · 18 MW · 7 12 Sept 2017 · 5 MW · 4 13 Sept 2017 · 37 MW · 13 14 Sept 2017 · 127 MW · 15 15 Sept 2017 · 3 MW · 1
25 Aug 30 Aug 4 Sept 8 Sept 13 Sept

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

The weather it burned in

36°high
58km/h · peak gust
31%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 2.7 mm on 25 Sept.

This area had burned before

5% of the perimeter overlaps earlier fires recorded since 2016: 225 ha in 2016. Part of it burned more than once, so the yearly figures add up to more than the 181 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 2.5% of the area of London (39 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. San Rafael 8,842 inhabitants where it started
    3,919 ha reached on 25 Aug
    0.4 %

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 2015
Built-up area0.15 ha
Residents< 20

Inside the perimeter there were about 0.15 hectares of built-up land and almost nobody lived there (GHSL 2015, 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)
22 Aug 30.1 °C 44 % 25 km/h 0.0 mm Low 7
23 Aug 33.1 °C 45 % 58 km/h 0.0 mm Moderate 12
24 Aug 33.9 °C 49 % 37 km/h 0.2 mm Low 10
25 Aug 34.1 °C 45 % 42 km/h 0.0 mm Moderate 13
26 Aug 34.4 °C 43 % 44 km/h 0.1 mm Moderate 13
27 Aug 34.6 °C 40 % 35 km/h 0.0 mm Moderate 15
28 Aug 35.6 °C 38 % 30 km/h 0.0 mm Moderate 16
29 Aug 36.3 °C 33 % 33 km/h 0.0 mm Moderate 19
30 Aug 32.9 °C 42 % 38 km/h 0.0 mm Moderate 20
31 Aug 30.3 °C 45 % 35 km/h 0.0 mm Moderate 18
1 Sept 35.2 °C 38 % 23 km/h 0.0 mm Moderate 17
2 Sept 36.5 °C 33 % 37 km/h 0.0 mm High 23
3 Sept 36.0 °C 35 % 37 km/h 0.0 mm High 24
4 Sept 36.5 °C 34 % 31 km/h 0.0 mm High 22
5 Sept 27.9 °C 46 % 44 km/h 0.0 mm High 23
6 Sept 33.3 °C 37 % 34 km/h 0.0 mm Moderate 21
7 Sept 34.8 °C 32 % 38 km/h 0.0 mm High 26
8 Sept 35.9 °C 31 % 42 km/h 0.0 mm High 30
9 Sept 35.0 °C 39 % 50 km/h 0.0 mm High 30
10 Sept 36.1 °C 40 % 54 km/h 0.0 mm High 32
11 Sept 27.5 °C 67 % 33 km/h 6.0 mm Very low 2
12 Sept 31.3 °C 48 % 25 km/h 0.0 mm Low 7
13 Sept 35.1 °C 42 % 31 km/h 0.0 mm Moderate 17
14 Sept 35.5 °C 42 % 39 km/h 0.2 mm Moderate 20
15 Sept 31.5 °C 52 % 42 km/h 7.0 mm Very low 4
16 Sept after 26.3 °C 49 % 48 km/h 0.0 mm Moderate 12
17 Sept after 28.3 °C 44 % 41 km/h 0.0 mm Moderate 15
18 Sept after 33.9 °C 37 % 23 km/h 0.0 mm Moderate 16
19 Sept after 36.1 °C 34 % 23 km/h 0.0 mm Moderate 19
20 Sept after 37.0 °C 30 % 26 km/h 0.0 mm High 23
21 Sept after 35.4 °C 39 % 27 km/h 0.1 mm Moderate 21
22 Sept after 32.0 °C 46 % 31 km/h 0.0 mm Moderate 20
23 Sept after 32.4 °C 43 % 35 km/h 0.0 mm High 22
24 Sept after 34.3 °C 43 % 26 km/h 0.0 mm Moderate 21
25 Sept after 35.3 °C 42 % 28 km/h 2.7 mm Low 9

Its twins: fires that started in the same weather

It started with an FWI of 7.3, a minimum humidity of 44% and 1 day without rain. Fires in the area that started in weather like this since 2016: 16.

FWI at the start 7.3
Minimum humidity 44 %
Days without rain 1
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

San José fire, October 2016
4,151 ha 19 days FWI 8.5 Min. humidity 45 % 61 km away, in 2016

First rain (1 mm or more) after it ended: 3.6 mm on 3 Nov.

What happened to them

13 days
median duration
3,992 ha
median area
25 %
went past 10,000 ha
7.1 mm
rain at the end (median; 16 of 16 had it)

It burned an area similar to its twins (3,898 ha against a median of 3,992 ha) and lasted 25 days, against 13 days.

All of them had rain in the ten days after the end: the first rainy day brought a median of 7.1 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

2.7 mmfirst rain
25 Sept10 days after it ended
58km/h · max. gust

It was considered over on 15 Sept, and on 25 Sept 2.7 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 16 of 16, with a median of 7.1 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 · 15 Aug 2017
After · 22 Sept 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 · 287Every 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 San Rafael fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 22 August 2017 to 15 September 2017 (25 days). The perimeter dates it from 25 August 2017 to 14 September 2017.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,898 hectares (39.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered San Rafael (3,919 ha, 0.4 %).
What was the weather like?
During the fire the temperature reached 36.5 °C, humidity dropped to 31 % and gusts hit 58 km/h. The fire danger index (FWI) reached 32, 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: 16. Their median duration was 13 days and their median area 3,992 ha; 25 % went past 10,000 ha. All of them had rain in the ten days after the end: the first rainy day brought a median of 7.1 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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 14 September 2017 → 15 September 2017.
  2. Start date: 25 August 2017 → 22 August 2017.

RSS Changes to this page With cross-checks and a citable version

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 adjusted with the VIIRS detections inside the perimeter, which said 25 August 2017 to 14 September 2017. 287 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 2015, 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.