Celorico da Beira fire, 27 August 2017 União das Freguesias de Freches e Torres, Fiães, Forno Telheiro
The fire started on 27 August 2017 in Minhocal, Portugal, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 911 hectares from satellite imagery, spread across 4 municipalities.
Number 61 in Portugal in 2017, of 211.
The power measured by the satellite is low (15.1 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.
Compare with…
- Burnt area
- 911ha
- Copernicus perimeter
- Duration
- 1day
- 27 Aug 2017 – 27 Aug 2017
- Municipalities hit
- 4
- freguesias
- Started on
- 27 Aug
- 2017
- Heat detections
- 8
- in a single hotspot: 15 MW
- Danger at start
- 8
- Low · FWI index
- Average daily power
- 82MW
- detected power per day, on average
Where it burned
How it evolved, day by day
27 Aug 2017 · 82 MW · 8
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 1.7 mm on 28 Aug.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
How big is it?
London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).
Lisbon boundary: geoBoundaries · geoBoundaries, DG Territory (CC0 1.0).
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).
This compares size, not location: both shapes are at the same scale, north up, centred on each other.
What happened to each town
-
União das Freguesias de Freches e Torres 450 inhabitants · 1.3 km from the centre502 ha21 %
-
Fiães 181 inhabitants · 0.5 km from the centre166 ha reached on 27 Aug17 %
-
Forno Telheiro 597 inhabitants · 1.8 km from the centre129 ha reached on 27 Aug6.2 %
-
115 ha reached on 27 Aug11 %
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 land67 %
- Scrub and transitional woodland20 %
- Agricultural areas13 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
People and buildings inside the perimeter
GHSL 2015Inside the perimeter there were about 1.4 hectares of built-up land and about 30 residents (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
Official record
According to ICNF, this fire started on 26 August 2017 and burned 668 ha (the satellite measured 911 ha). The two figures differ a lot, so these may not be exactly the same fire: take them as nearby records.
- Celorico da Beira Forno Telheiro 26 August 2017 · 23:15 668 ha · extinguished on 28 August 2017 · cause: negligence
ICNF (Instituto da Conservação da Natureza e das Florestas). This is the agency’s operational record: its figures may be revised when the year’s statistics are closed.
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) |
|---|---|---|---|---|---|
| 27 Aug | 25.6 °C | 36 % | 48 km/h | 4.4 mm | Low 8 |
| 28 Aug after | 23.8 °C | 37 % | 33 km/h | 1.7 mm | Low 8 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 27 August 2017 the air beside the fire reached 17 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
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 · 8Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 9,523 haGuarda Alverca da Beira/Bouça CovaAugust 2025 · 3 days · 15 km away
- 8,554 haPenalva do Castelo Vila Cova do Covelo/MarecoSeptember 2024 · 5 days · 26 km away
- 8,991 haGuarda Rochoso e Monte Margarida17 July 2017 · 3 days · 32 km away
- 5,226 haGuarda CerdeiraJuly 2026 · 3 days · 32 km away
- 25,260 haSerra da Estrela SameiroAugust 2022 · 18 days · 33 km away
- 19,125 haSeia Pamos Da SerraOctober 2017 · 8 days · 35 km away
Frequently asked questions
- How long did the Celorico da Beira fire last?
- Copernicus dates it between 27 August 2017 and 27 August 2017: 1 day between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 911 hectares (9.1 km²). Official national figures may differ.
- Which municipalities burned?
- The fire entered 4 municipalities: União das Freguesias de Freches e Torres (502 ha, 21 %); Fiães (166 ha, 17 %); Forno Telheiro (129 ha, 6.2 %); Minhocal (115 ha, 11 %).
- Did the fire reach a town?
- The fire came within 0.5 km of the centre of Fiães, the closest of the areas it touched. 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 25.6 °C, humidity dropped to 36 % and gusts hit 48 km/h. The fire danger index (FWI) reached 8, class Low.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Portugal (geoBoundaries). It is not an official report.
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 ›
- ICNF · Instituto da Conservação da Natureza e das Florestas ↗
- ANEPC · Proteção Civil ↗
- Fogos.pt (ocorrências em tempo real) ↗
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.
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: EFFIS (Copernicus), mapped on satellite imagery.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 8 Suomi-NPP VIIRS detections on those dates.
- Compared with ICNF: 668 official ha against 911 ha of perimeter; similar, but with reservations.
- 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.
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 (CC0 1.0 Universal (CC0 1.0) Public Domain Dedication). 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.