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ES · Spain · –

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.

Burnt area
279ha
Copernicus perimeter
Duration
6days
26 Mar 2023 – 31 Mar 2023
Municipalities hit
2
municipalities
Started on
26 Mar
2023
Heat detections
19
in a single hotspot: 8 MW
Danger at start
0
Very low · FWI index
Average daily power
17MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 26 Mar31 Mar
31 Mar 2023

How it evolved, day by day

27 Mar 2023 · 41 MW · 10 29 Mar 2023 · 5 MW · 3 30 Mar 2023 · 21 MW · 5 31 Mar 2023 · 1 MW · 1
27 Mar 29 Mar 30 Mar 31 Mar

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

The weather it burned in

19°high
72km/h · peak gust
30%lowest humidity

It had gone one day without rain (1 mm or more) when it started. Rain came after the fire: 7.3 mm on 1 Apr.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

What happened to each town

  1. Camaleño 964 inhabitants · 3.5 km from the centre where it started
    205 ha reached on 27 Mar
    1.3 %
  2. Cillorigo de Liébana 52 inhabitants · 5.3 km from the centre
    75 ha reached on 27 Mar
    0.7 %

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.

What burned

  • Other natural land58 %
  • Broadleaved forest42 %

Natura 2000 protected area affected: 94 %

  • ZEPA + LIC Liébana ES0000198 · ES1300001

Natura 2000 sites (European Environment Agency, 2024 release) crossed by the perimeter.

Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.

Official record

According to EGIF (MITECO), this fire started on 26 March 2023 and burned 272 ha (the satellite measured 279 ha).

MITECO, Estadística General de Incendios Forestales (EGIF). This is the agency’s consolidated statistic: it measures the area in its own way, which is why it can differ from the satellite.

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)

Started with Strong wind: 26 % of the area in Spain

Day High Min. humidity Peak gust Rain Danger (FWI)
26 Mar 8.8 °C 49 % 72 km/h 4.1 mm Very low 0
27 Mar 10.0 °C 50 % 30 km/h 0.2 mm Very low 0
28 Mar 15.3 °C 43 % 30 km/h 0.1 mm Very low 0
29 Mar 18.8 °C 30 % 52 km/h 1.3 mm Very low 1
30 Mar 12.6 °C 54 % 52 km/h 0.3 mm Very low 1
31 Mar 10.7 °C 54 % 49 km/h 0.6 mm Very low 2
1 Apr after 6.4 °C 76 % 70 km/h 7.3 mm Very low 0

Its twins: fires that started in the same weather

It started with an FWI of 0.1, a minimum humidity of 49% and 1 day without rain. Fires in the area that started in weather like this since 2016: 48.

FWI at the start 0.1
Minimum humidity 49 %
Days without rain 1
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Comunidad de Campoo y Cabuérniga fire, March 2021
144 ha 1 day FWI 0.4 Min. humidity 49 % 36 km away, in 2021

First rain (1 mm or more) after it ended: 1.1 mm on 2 Mar.

What happened to them

2 days
median duration
184 ha
median area
0 %
went past 1,000 ha
5.8 mm
rain at the end (median; 48 of 48 had it)

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.

How we calculate it

Before and after, from space

Drag the line to compare the same ground before the fire and after it.

Before · 19 Mar 2023
After · 7 Apr 2023

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 peak30 µg/m³
Days over the guideline1 day
PM1046 µg/m³
Optical depth1.04
24 Mar27 Mar30 Mar2 Apr
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 · 19Every 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 Spain

Frequently asked questions

How long did the Camaleño fire last?
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.

Emergency number: 112 · 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
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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 112.

How 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.

How we build fire pages: methodology

Where this data comes from

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.