Outeiro fire, October 2017 Outeiro, Cabril
The fire started on 11 October 2017 in Outeiro, Portugal, and satellites saw it burning for 5 days. Copernicus mapped a burnt perimeter of 895 hectares from satellite imagery, spread across 2 municipalities.
It is the 4th largest in Montalegre since 2016 (of 64 with a page). Number 63 in Portugal in 2017, of 211.
Compare with…
- Burnt area
- 895ha
- Copernicus perimeter
- Duration
- 5days
- 11 Oct 2017 – 15 Oct 2017
- Municipalities hit
- 2
- freguesias
- Started on
- 11 Oct
- 2017
- Heat detections
- 69
- in a single hotspot: 31 MW
- Danger at start
- 28
- High · FWI index
- Average daily power
- 140MW
- detected power per day, on average
Where it burned
How it evolved, day by day
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 19 days without rain (1 mm or more) when it started. Rain came after the fire: 2.2 mm on 16 Oct.
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
-
882 ha reached on 11 Oct17 %
-
Cabril 4.4 km from the centre14 ha reached on 12 Oct0.2 %
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 land100 %
Natura 2000 protected area affected: 1 %
- LIC Baixa Limia ES1130001
- ZEPA Baixa Limia - Serra do Xurés ES0000376
- LIC Peneda / Gerês PTCON0001
- ZEPA Serra do Gerês PTZPE0002
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.
People and buildings inside the perimeter
GHSL 2015Inside the perimeter there was no noticeable built-up land and almost nobody lived there (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
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) |
|---|---|---|---|---|---|
| 11 Oct | 21.5 °C | 18 % | 35 km/h | 0.0 mm | High 28 |
| 12 Oct | 23.7 °C | 23 % | 24 km/h | 0.0 mm | High 26 |
| 13 Oct | 22.6 °C | 26 % | 27 km/h | 0.0 mm | High 24 |
| 14 Oct | 23.8 °C | 27 % | 39 km/h | 0.0 mm | High 27 |
| 15 Oct | 25.2 °C | 27 % | 61 km/h | 0.0 mm | High 35 |
| 16 Oct after | 17.8 °C | 47 % | 53 km/h | 2.2 mm | Low 6 |
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 16 October 2017 the air beside the fire reached 198 µg/m³ of PM2.5. That day averaged 82: 5.4 times the WHO daily 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 · 69Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 3,240 haMuíñosOctober 2017 · 2 days · 9 km away
- 3,074 haEntrimoSeptember 2016 · 7 days · 19 km away
- 7,225 haPonte da Barca Entre Ambos-os-Rios, Ermida e GermilJuly 2025 · 11 days · 22 km away
- 6,662 haArcos de Valdevez Soajo8 August 2016 · 9 days · 28 km away
- 24,471 haMonterreiAugust 2025 · 8 days · 39 km away
Frequently asked questions
- How long did the Outeiro fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 11 October 2017 to 15 October 2017 (5 days). The perimeter dates it from 13 October 2017 to 14 October 2017.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 895 hectares (9.0 km²). Official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Outeiro (882 ha, 17 %); Cabril (14 ha, 0.2 %).
- Did the fire reach a town?
- The fire started in Outeiro and reached its centre: the point marking it was inside the burnt area or less than 500 metres from it. That does not mean houses burned.
- What was the weather like?
- During the fire the temperature reached 25.2 °C, humidity dropped to 18 % and gusts hit 61 km/h. The fire danger index (FWI) reached 35, class High.
- 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 adjusted with the VIIRS detections inside the perimeter, which said 13 October 2017 to 14 October 2017. 69 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 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.