Burned area
satellite only3,609ha
Perimeter published by GWIS (Copernicus).
- Source
- GWIS (Copernicus)
- Date
- 4 Nov 2023 – 17 Nov 2023
+− cross-check
No official record is matched to this page to compare it with.
BO · Bolivia · –
Concepción fire, 4 November 2023 San Antonio de Lomerío, Concepción
Out · last detection 17 Nov 2023, 17:45 UTC
The fire started on 4 November 2023 in Concepción, Bolivia, and satellites saw it burning for 14 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,609 hectares from heat detections, spread across 2 municipalities.
It is the 603th largest in Santa Cruz since 2016 (of 785 with a page). Number 191 in Bolivia in 2023, of 247.
Use this data
Compare with…
Use this data
Fire page data · version 2026-11-15matches 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 only14days
4 Nov 2023 to 17 Nov 2023: first and last day with fire on the page.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 17 Nov 2023, 17:45 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 only4 Nov 2023
First day with fire seen by the satellites or the perimeter.
- Source
- GWIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 4 Nov 2023
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only190
VIIRS detections at 375 m. Most intense hotspot: 36 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 4 Nov 2023 – 17 Nov 2023
+− 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 only412MW
Total radiative power on 16 November 2023; hotspots that day: 57.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 16 Nov 2023
+− 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
model25.8FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 3.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 4 Nov 2023, 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
model39.6°C · 34% RH
High of 39.6 °C and minimum humidity of 34% on 7 November 2023; gusts of 72 km/h on 17 November 2023.
- Source
- weather model at the fire’s grid cell
- Date
- 4 Nov 2023 – 17 Nov 2023
- 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
-
logName: San Antonio de Lomerío → Concepción.
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
logStart date: 11 November 2023 → 4 November 2023.
Area logged each night
Move the slider to see which area the page published each day.
Versioned permanent link
https://worldfires.org/en/fire/concepcion-2023-11-9?v=2026-11-15A 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 concepcion-2023-11-9.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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-11-04 | 2 | 18 | 31 | 21.8 | 29 | 18.3 | 41.8 | 0 | 25.8 | alto | 1 |
| 2023-11-05 | 4 | 7 | 36.3 | 19.3 | 29 | 14.7 | 35.3 | 0 | 28.3 | alto | 1 |
| 2023-11-06 | 2 | 17 | 37.3 | 24.1 | 38 | 9.7 | 28.8 | 0 | 25.1 | alto | 1 |
| 2023-11-07 | 0 | 0 | 39.6 | 26.5 | 34 | 15.6 | 36.4 | 0.1 | 31.9 | alto | 1 |
| 2023-11-08 | 9 | 116 | 39.1 | 28 | 35 | 20.4 | 50 | 0 | 40.4 | muy_alto | 1 |
| 2023-11-09 | 0 | 0 | 38.6 | 27.5 | 37 | 17.5 | 47.9 | 0.2 | 35.5 | alto | 1 |
| 2023-11-10 | 8 | 66 | 37.4 | 26.7 | 40 | 20.2 | 50.8 | 0.3 | 41.1 | muy_alto | 1 |
| 2023-11-11 | 10 | 57 | 38.2 | 27.5 | 38 | 22.7 | 59.8 | 0 | 46.6 | muy_alto | 1 |
| 2023-11-12 | 6 | 120 | 38.2 | 28.4 | 37 | 25.3 | 66.6 | 0 | 50.2 | extremo | 1 |
| 2023-11-13 | 20 | 110 | 39.1 | 28.2 | 36 | 21.5 | 58 | 1 | 45.2 | muy_alto | 1 |
| 2023-11-14 | 10 | 114 | 38 | 28.7 | 38 | 21.9 | 57.6 | 0 | 38.8 | muy_alto | 1 |
| 2023-11-15 | 13 | 54 | 38.2 | 26.8 | 38 | 26.3 | 63.7 | 0.3 | 47.7 | muy_alto | 1 |
| 2023-11-16 | 57 | 412 | 38.9 | 28.2 | 34 | 26.5 | 66.6 | 0.2 | 55.2 | extremo | 1 |
| 2023-11-17 | 49 | 248 | 39 | 28.7 | 32 | 28.8 | 72 | 0 | 62.9 | extremo | 1 |
| 2023-11-18 | 0 | 0 | 37.8 | 29.9 | 34 | 34.6 | 75.2 | 0 | 68.9 | extremo | 0 |
| 2023-11-19 | 0 | 0 | 33.9 | 25.9 | 50 | 17.3 | 53.3 | 4.9 | 21.6 | 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). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 3,609ha
- GWIS perimeter (Copernicus)
- Duration
- 14days
- 4 Nov 2023 – 17 Nov 2023
- Municipalities hit
- 2
- municipalities
- Started on
- 4 Nov
- 2023
- Heat detections
- 190
- in a single hotspot: 36 MW
- Danger at start
- 26
- High · FWI index
- Average daily power
- 111MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
4 Nov17 Nov
17 Nov 2023
How it evolved, day by day
4 Nov
8 Nov
12 Nov
16 Nov
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
40°high
72km/h · peak gust
29%lowest humidity
It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 4.9 mm on 19 Nov.
This area had burned before
81% of the perimeter overlaps earlier fires recorded since 2016: 73 ha in 2016, 1,979 ha in 2018, 2,766 ha in 2020, 834 ha in 2022. Part of it burned more than once, so the yearly figures add up to more than the 2,925 ha that had burned before.
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
-
San Antonio de Lomerío 6,364 inhabitants2,910 ha1.2 %
-
726 ha0.0 %
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.
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) |
|---|---|---|---|---|---|
| 4 Nov | 31.0 °C | 29 % | 42 km/h | 0.0 mm | High 26 |
| 5 Nov | 36.3 °C | 29 % | 35 km/h | 0.0 mm | High 28 |
| 6 Nov | 37.3 °C | 38 % | 29 km/h | 0.0 mm | High 25 |
| 7 Nov | 39.6 °C | 34 % | 36 km/h | 0.1 mm | High 32 |
| 8 Nov | 39.1 °C | 35 % | 50 km/h | 0.0 mm | Very high 40 |
| 9 Nov | 38.6 °C | 37 % | 48 km/h | 0.2 mm | High 36 |
| 10 Nov | 37.4 °C | 40 % | 51 km/h | 0.3 mm | Very high 41 |
| 11 Nov | 38.2 °C | 38 % | 60 km/h | 0.0 mm | Very high 47 |
| 12 Nov | 38.2 °C | 37 % | 67 km/h | 0.0 mm | Extreme 50 |
| 13 Nov | 39.1 °C | 36 % | 58 km/h | 1.0 mm | Very high 45 |
| 14 Nov | 38.0 °C | 38 % | 58 km/h | 0.0 mm | Very high 39 |
| 15 Nov | 38.2 °C | 38 % | 64 km/h | 0.3 mm | Very high 48 |
| 16 Nov | 38.9 °C | 34 % | 67 km/h | 0.2 mm | Extreme 55 |
| 17 Nov | 39.0 °C | 32 % | 72 km/h | 0.0 mm | Extreme 63 |
| 18 Nov after | 37.8 °C | 34 % | 75 km/h | 0.0 mm | Extreme 69 |
| 19 Nov after | 33.9 °C | 50 % | 53 km/h | 4.9 mm | High 22 |
Its twins: fires that started in the same weather
It started with an FWI of 25.8, a minimum humidity of 29% and 3 days without rain. Fires in the area that started in weather like this since 2016: 34.
FWI at the start
25.8
Minimum humidity
29 %
Days without rain
3
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Concepción fire, 4 November 2023
3,609 ha
14 days
FWI 25.8
Min. humidity 29 %
El Puente fire, October 2020
3,327 ha
9 days
FWI 26.0
Min. humidity 29 %
152 km away, in 2020
First rain (1 mm or more) after it ended: 15.1 mm on 9 Nov.
San Miguel fire, August 2024
15,180 ha
29 days
FWI 25.7
Min. humidity 26 %
100 km away, in 2024
First rain (1 mm or more) after it ended: 1.3 mm on 15 Sept.
Concepción fire, July 2024
17,610 ha
45 days
FWI 28.6
Min. humidity 29 %
83 km away, in 2024
First rain (1 mm or more) after it ended: 1.1 mm on 12 Sept.
San Ignacio fire, November 2020
7,126 ha
8 days
FWI 24.8
Min. humidity 29 %
244 km away, in 2020
First rain (1 mm or more) after it ended: 13.4 mm on 10 Nov.
Concepción fire, July 2024
9,582 ha
21 days
FWI 27.2
Min. humidity 32 %
46 km away, in 2024
First rain (1 mm or more) after it ended: 8.5 mm on 7 Aug.
What happened to them
- 15 days
- median duration
- 4,897 ha
- median area
- 24 %
- went past 10,000 ha
- 6.4 mm
- rain at the end (median; 31 of 34 had it)
It burned an area similar to its twins (3,609 ha against a median of 4,897 ha) and lasted 14 days, against 15 days.
In 3 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 6.4 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
4.9 mmfirst rain
19 Nov2 days after it ended
72km/h · max. gust
It was considered over on 17 Nov, and on 19 Nov 4.9 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 31 of 34, with a median of 6.4 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 · 28 Oct 2023
After · 24 Nov 2023
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 16 November 2023 the air beside the fire reached 68 µg/m³ of PM2.5. That day averaged 41: 2.7 times the WHO daily guideline (15).
PM2.5 peak68 µg/m³
Days over the guideline11 days
PM1097 µg/m³
Optical depth2.13
WHO 15
9 Nov12 Nov15 Nov18 Nov
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 · 190Every 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
- 16,947 haConcepción25 October 2020 · 15 days · 6 km away
- 7,278 haSan Antonio de Lomerío19 September 2019 · 13 days · 11 km away
- 6,609 haSan Antonio de LomeríoOctober 2020 · 14 days · 15 km away
- 12,080 haConcepción9 September 2019 · 23 days · 29 km away
- 15,653 haSan Antonio de Lomerío23 July 2016 · 17 days · 31 km away
- 6,478 haSan RamónJuly 2024 · 18 days · 32 km away
Frequently asked questions
- How long did the Concepción fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 4 November 2023 to 17 November 2023 (14 days). The perimeter dates it from 11 November 2023 to 17 November 2023.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,609 hectares (36.1 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: San Antonio de Lomerío (2,910 ha, 1.2 %); Concepción (726 ha, 0.0 %).
- What was the weather like?
- During the fire the temperature reached 39.6 °C, humidity dropped to 29 % and gusts hit 72 km/h. The fire danger index (FWI) reached 63, class Extreme.
- 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 15 days and their median area 4,897 ha; 24 % went past 10,000 ha. In 3 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 6.4 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.
- Name: San Antonio de Lomerío → Concepción.
- Start date: 11 November 2023 → 4 November 2023.
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 adjusted with the VIIRS detections inside the perimeter, which said 11 November 2023 to 17 November 2023. 190 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.
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.