Camaleño fire, March 2023
Camaleño, Cillorigo de Liébana
Out · last detection 31 Mar 2023, 02:07 UTC
The fire started on 26 March 2023 in Camaleño, Spain, and satellites saw it burning for 6 days. Copernicus mapped a burnt perimeter of 279 hectares from satellite imagery, spread across 2 municipalities. According to EGIF (MITECO), it was detected on 26 March 2023 at 21:40 and declared extinguished on 2 April 2023.
It is the 46th largest in Cantabria since 2016 (of 179 with a page). Number 40 in Spain in 2023, of 124.
The power measured by the satellite is low (7.6 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
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
model
18.8°C · 30% RH
High of 18.8 °C and minimum humidity of 30% on 29 March 2023; gusts of 72 km/h on 26 March 2023.
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
· reconstructedweather
Weather and FWI computed from the ERA5 reanalysis
· reconstructedofficial
Matched with the official EGIF (MITECO) record
Matches: 272 ha in the official record (records: 1).
A 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
Burnt area inside each municipality, from crossing the official 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.
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)
It was 1.5 times larger than the median of its twins and lasted 6 days, against 2 days.
Only 10 of its 48 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. All of them had rain in the ten days after the end: the first rainy day brought a median of 5.8 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
7.3 mmfirst rain
1 Aprthe day after it ended
72km/h · max. gust
It was considered over on 31 Mar, and on 1 Apr 7.3 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 48 of 48, with a median of 5.8 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.
Drag the line to compare the same ground before the fire and after it.
↔
Before · 19 Mar 2023
After · 7 Apr 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 · Copernicus
On 31 March 2023 the air beside the fire reached 30 µg/m³ of PM2.5. That day averaged 15: 1.0 times the WHO daily guideline (15).
PM2.5 peak30µg/m³
Days over the guideline1day
PM1046µg/m³
Optical depth1.04
WHO 15
24 Mar27 Mar30 Mar2 Apr
GoodFairModeratePoorVery poorExtremely 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· 19Every satellite heat detection, one by one, with time, satellite, power and coordinates.›
⬇ Download CSVTimes in UTC. Each detection is a 375 m pixel: a large fire yields hundreds per pass.
According to the heat detections seen by satellite inside the perimeter, it burned from 26 March 2023 to 31 March 2023 (6 days). The perimeter dates it from 26 March 2023 to 28 March 2023. According to EGIF (MITECO), it was detected on 26 March 2023 at 21:40 and declared extinguished on 2 April 2023.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 279 hectares (2.8 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Camaleño (205 ha, 1.3 %); Cillorigo de Liébana (75 ha, 0.7 %).
Did the fire reach a town?
The fire started in Camaleño and came within 3.5 km of its centre. That is the distance from the perimeter, or the nearest hotspot, to the point marking the centre; it does not mean it entered the houses.
What was the weather like?
During the fire the temperature reached 18.8 °C, humidity dropped to 30 % and gusts hit 72 km/h. The fire danger index (FWI) reached 2, class Very low.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Spain (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: 48. Their median duration was 2 days and their median area 184 ha; 0 % went past 1,000 ha. Only 10 of its 48 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. All of them had rain in the ten days after the end: the first rainy day brought a median of 5.8 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.
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 errorHow we know this›
Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
Dates adjusted with the VIIRS detections inside the perimeter, which said 26 March 2023 to 28 March 2023. 19 Suomi-NPP VIIRS detections on those dates.
Compared with EGIF (MITECO): 272 official ha against 279 ha of perimeter; they agree within 25%.
Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
The perimeter and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. 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 (Creative Commons Attribution 4.0 International (CC BY 4.0)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.