Burned area
satellite only10,910ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 17 Sept 2022 – 27 Sept 2022
+− cross-check
No official record is matched to this page to compare it with.
BO · Bolivia · –
San Ignacio fire, 17 September 2022 San Ignacio
Out · last detection 27 Sept 2022, 17:46 UTC
The fire started on 17 September 2022 in San Ignacio, Bolivia, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 10,910 hectares from heat detections, spread across a single municipality.
It is the 126th largest in Beni since 2016 (of 859 with a page). Number 41 in Bolivia in 2022, of 222.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-24matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only11days
17 Sept 2022 to 27 Sept 2022: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 27 Sept 2022, 17:46 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only17 Sept 2022
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 17 Sept 2022
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only398
VIIRS detections at 375 m. Most intense hotspot: 200 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 17 Sept 2022 – 27 Sept 2022
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only3,674MW
Total radiative power on 22 September 2022; hotspots that day: 116.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 22 Sept 2022
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model17.3FWI · moderate
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 1.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 17 Sept 2022, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model37.2°C · 39% RH
High of 37.2 °C and minimum humidity of 39% on 20 September 2022; gusts of 49 km/h on 19 September 2022.
- Source
- weather model at the fire’s grid cell
- Date
- 17 Sept 2022 – 27 Sept 2022
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed GHSLPopulation and built-up area computed
What was saved on 24 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 10,910 ha
- Dates
- 17 Sept 2022 – 27 Sept 2022
- Name
- San Ignacio
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/san-ignacio-beni-2022-09-2?v=2026-10-24A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire san-ignacio-beni-2022-09-2.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022-09-17 | 5 | 61 | 35.3 | 18.5 | 35 | 12.6 | 27.7 | 0 | 17.3 | moderado | 1 |
| 2022-09-18 | 8 | 68 | 36.8 | 22.2 | 39 | 17 | 41 | 0 | 25.3 | alto | 1 |
| 2022-09-19 | 23 | 218 | 36.8 | 25 | 40 | 17.6 | 48.6 | 0 | 27.4 | alto | 1 |
| 2022-09-20 | 55 | 771 | 37.2 | 25.5 | 39 | 16.5 | 39.2 | 0.1 | 27 | alto | 1 |
| 2022-09-21 | 85 | 1,466 | 37 | 26 | 41 | 19.8 | 47.9 | 0 | 30.8 | alto | 1 |
| 2022-09-22 | 116 | 3,674 | 32 | 23.5 | 49 | 21.2 | 41.4 | 1 | 26.9 | alto | 1 |
| 2022-09-23 | 0 | 0 | 27 | 19.4 | 36 | 21 | 37.8 | 0.5 | 23.2 | alto | 1 |
| 2022-09-24 | 55 | 897 | 31.7 | 20.3 | 46 | 10.6 | 31 | 1.6 | 7.3 | bajo | 1 |
| 2022-09-25 | 36 | 507 | 36.3 | 22.9 | 38 | 14.4 | 38.9 | 0.1 | 25.3 | alto | 1 |
| 2022-09-26 | 0 | 0 | 35.8 | 24.4 | 43 | 12.8 | 38.2 | 0.1 | 25.9 | alto | 1 |
| 2022-09-27 | 15 | 228 | 36 | 23.9 | 42 | 11.4 | 37.8 | 1 | 24.3 | alto | 1 |
| 2022-09-28 | 0 | 0 | 35 | 23.6 | 47 | 18.6 | 36.7 | 17.9 | 26.1 | alto | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: GWIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 10,910ha
- GWIS perimeter (Copernicus)
- Duration
- 11days
- 17 Sept 2022 – 27 Sept 2022
- Municipalities hit
- 1
- municipalities
- Started on
- 17 Sept
- 2022
- Heat detections
- 398
- in a single hotspot: 200 MW
- Danger at start
- 17
- Moderate · FWI index
- Average daily power
- 877MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
17 Sept27 Sept
27 Sept 2022
How it evolved, day by day
17 Sept
19 Sept
22 Sept
27 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
37°high
49km/h · peak gust
35%lowest humidity
It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 17.9 mm on 28 Sept.
This area had burned before
64% of the perimeter overlaps earlier fires recorded since 2016: 1 ha in 2017, 3,607 ha in 2018, 4,842 ha in 2019, 3,437 ha in 2021. Part of it burned more than once, so the yearly figures add up to more than the 7,023 ha that had burned before.
- 4,842 ha San Ignacio fire, September 2019 11,209 ha in total; the hectares shown are those it shares with this fire
- 2,114 ha San Ignacio fire, August 2021 7,979 ha in total; the hectares shown are those it shares with this fire
- 2,007 ha San Ignacio fire, September 2018 9,613 ha in total; the hectares shown are those it shares with this fire
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Paris boundary: geoBoundaries · Institut national de l'information géographique et forestière (IGN-F) (Etalab Open License 2.0).
Madrid boundary: geoBoundaries · Open Data ESRI, IGN Central Registry of Cartography Area (CC BY 4.0).
Berlin boundary: geoBoundaries · Federal Agency for Cartography and Geodesy (dl-de/by-2-0).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
10,939 ha reached on 17 Sept0.4 %
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 2020Built-up area< 0.1 ha
Residents< 20
Inside the perimeter there was no noticeable built-up land and almost nobody lived there (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) |
|---|---|---|---|---|---|
| 17 Sept | 35.3 °C | 35 % | 28 km/h | 0.0 mm | Moderate 17 |
| 18 Sept | 36.8 °C | 39 % | 41 km/h | 0.0 mm | High 25 |
| 19 Sept | 36.8 °C | 40 % | 49 km/h | 0.0 mm | High 27 |
| 20 Sept | 37.2 °C | 39 % | 39 km/h | 0.1 mm | High 27 |
| 21 Sept | 37.0 °C | 41 % | 48 km/h | 0.0 mm | High 31 |
| 22 Sept | 32.0 °C | 49 % | 41 km/h | 1.0 mm | High 27 |
| 23 Sept | 27.0 °C | 36 % | 38 km/h | 0.5 mm | High 23 |
| 24 Sept | 31.7 °C | 46 % | 31 km/h | 1.6 mm | Low 7 |
| 25 Sept | 36.3 °C | 38 % | 39 km/h | 0.1 mm | High 25 |
| 26 Sept | 35.8 °C | 43 % | 38 km/h | 0.1 mm | High 26 |
| 27 Sept | 36.0 °C | 42 % | 38 km/h | 1.0 mm | High 24 |
| 28 Sept after | 35.0 °C | 47 % | 37 km/h | 17.9 mm | High 26 |
Its twins: fires that started in the same weather
It started with an FWI of 17.3, a minimum humidity of 35% and 1 day without rain. Fires in the area that started in weather like this since 2016: 34.
FWI at the start
17.3
Minimum humidity
35 %
Days without rain
1
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · San Ignacio fire, 17 September 2022
10,910 ha
11 days
FWI 17.3
Min. humidity 35 %
Santa Ana fire, September 2018
7,987 ha
11 days
FWI 15.5
Min. humidity 35 %
50 km away, in 2018
First rain (1 mm or more) after it ended: 20.9 mm on 15 Sept.
San Ignacio fire, September 2019
5,022 ha
13 days
FWI 18.0
Min. humidity 35 %
106 km away, in 2019
First rain (1 mm or more) after it ended: 22.0 mm on 1 Oct.
San Ignacio fire, September 2023
11,611 ha
12 days
FWI 15.2
Min. humidity 36 %
58 km away, in 2023
First rain (1 mm or more) after it ended: 1.5 mm on 2 Oct.
San Ignacio fire, August 2022
15,895 ha
16 days
FWI 16.2
Min. humidity 36 %
50 km away, in 2022
First rain (1 mm or more) after it ended: 6.2 mm on 10 Sept.
Santa Ana fire, September 2019
5,007 ha
11 days
FWI 17.2
Min. humidity 32 %
86 km away, in 2019
First rain (1 mm or more) after it ended: 34.1 mm on 5 Oct.
What happened to them
- 12 days
- median duration
- 7,840 ha
- median area
- 41 %
- went past 10,000 ha
- 6.2 mm
- rain at the end (median; 33 of 34 had it)
It burned an area similar to its twins (10,910 ha against a median of 7,840 ha) and lasted 11 days, against 12 days.
In 1 of 34, 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 6.2 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
17.9 mmfirst rain
28 Septthe day after it ended
49km/h · max. gust
It was considered over on 27 Sept, and on 28 Sept 17.9 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 33 of 34, with a median of 6.2 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.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 10 Sept 2022
After · 4 Oct 2022
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 · CopernicusOn 24 September 2022 the air beside the fire reached 482 µg/m³ of PM2.5. That day averaged 189: 13 times the WHO daily guideline (15).
PM2.5 peak482 µg/m³
Days over the guideline16 days
PM10689 µg/m³
Optical depth2.90
WHO 15
15 Sept19 Sept23 Sept27 Sept
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 · 398Every 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 time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 43,008 haSan Ignacio21 August 2024 · 25 days · 11 km away
- 31,943 haSan Ignacio10 September 2024 · 29 days · 16 km away
- 128,905 haSan Ignacio22 August 2022 · 30 days · 17 km away
- 17,845 haSan Ignacio3 November 2023 · 16 days · 27 km away
- 11,679 haSan Ignacio13 November 2023 · 6 days · 30 km away
- 12,655 haSan Ignacio1 October 2023 · 12 days · 40 km away
Frequently asked questions
- How long did the San Ignacio fire last?
- GWIS (Copernicus) dates it between 17 September 2022 and 27 September 2022: 11 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 10,910 hectares (109.1 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire only entered San Ignacio (10,939 ha, 0.4 %).
- What was the weather like?
- During the fire the temperature reached 37.2 °C, humidity dropped to 35 % and gusts hit 49 km/h. The fire danger index (FWI) reached 31, 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: 34. Their median duration was 12 days and their median area 7,840 ha; 41 % went past 10,000 ha. In 1 of 34, 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 6.2 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.
No changes since 24 October 2026.
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
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. 398 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.
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.