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Pinhel fire, 21 August 2017 Vale do Côa, Freixeda do Torrão, Quintã de Pêro Martins e Penha de Águia

Out · last detection 22 Aug 2017, 03:27 UTC

The fire started on 21 August 2017 in Vale do Côa, Portugal, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 268 hectares from satellite imagery, spread across 2 municipalities.

It is the 9th largest in Pinhel since 2016 (of 11 with a page). Number 128 in Portugal in 2017, of 210.

The power measured by the satellite is low (9.0 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
268ha
Copernicus perimeter
Duration
2days
21 Aug 2017 – 22 Aug 2017
Municipalities hit
2
freguesias
Started on
21 Aug
2017
Heat detections
11
in a single hotspot: 9 MW
Danger at start
48
Very high · FWI index
Average daily power
54MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 21 Aug22 Aug

How it evolved, day by day

22 Aug 2017 · 54 MW · 11

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

The weather it burned in

38°high
37km/h · peak gust
22%lowest humidity

It had gone 44 days without rain (1 mm or more) when it started. Rain came after the fire: 10.3 mm on 27 Aug.

This area had burned before

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

What happened to each town

  1. Vale do Côa 172 inhabitants · 1.0 km from the centre where it started
    188 ha reached on 22 Aug
    3.6 %
  2. Freixeda do Torrão, Quintã de Pêro Martins e Penha de Águia 387 inhabitants · 5.7 km from the centre
    80 ha reached on 22 Aug
    1.4 %

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 land75 %
  • Agricultural areas17 %
  • Scrub and transitional woodland7.7 %

Natura 2000 protected area affected: 100 %

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

Several official records match this area

According to ICNF, 2 fires started inside this perimeter on these dates, totalling 355 ha (the satellite measured 268 ha). The two figures differ a lot, so these may not be exactly the same fire: take them as nearby records.

ICNF records each fire that started at a different time or place separately; the satellite sees a single burned area, so this page groups them together. The numbers on the map show where each one started.

When each one burned

1 246 ha 2 109 ha
21 Aug22 Aug
negligence
  1. 1 Pinhel Cidadelhe 21 August 2017 · 19:52 246 ha · extinguished on 22 August 2017 · cause: negligence
  2. 2 Pinhel Cidadelhe 21 August 2017 · 22:34 109 ha · extinguished on 22 August 2017 · cause: negligence

Total according to ICNF: 355 ha, 132 % of the 268 ha in the satellite perimeter.

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)
21 Aug 38.0 °C 22 % 37 km/h 0.3 mm Very high 48
22 Aug 35.3 °C 26 % 33 km/h 0.0 mm Very high 46
23 Aug after 35.9 °C 22 % 39 km/h 0.0 mm Very high 50
24 Aug after 31.1 °C 25 % 34 km/h 0.0 mm Very high 43
25 Aug after 32.0 °C 17 % 22 km/h 0.0 mm Very high 39
26 Aug after 32.9 °C 23 % 49 km/h 0.4 mm Extreme 56
27 Aug after 27.9 °C 46 % 50 km/h 10.3 mm Low 7

Before and after, from space

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

Before · 14 Aug 2017
After · 29 Aug 2017

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 21 August 2017 the air beside the fire reached 19 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak19 µg/m³
Days over the guideline0 days
PM1031 µg/m³
19202122232425
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 · 11Every 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 Portugal ›

Frequently asked questions

How long did the Pinhel fire last?
Copernicus dates it between 21 August 2017 and 22 August 2017: 2 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 268 hectares (2.7 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Vale do Côa (188 ha, 3.6 %); Freixeda do Torrão, Quintã de Pêro Martins e Penha de Águia (80 ha, 1.4 %).
Did the fire reach a town?
The fire started in Vale do Côa and came within 1.0 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 38.0 °C, humidity dropped to 22 % and gusts hit 37 km/h. The fire danger index (FWI) reached 48, class Very 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 ›

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.

RSS Changes to this page

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
What do you think is wrong?

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 from the perimeter: the VIIRS detections inside it did not change them. 11 Suomi-NPP VIIRS detections on those dates.
  • Compared with ICNF: 355 official ha against 268 ha of perimeter; similar, but with reservations.
  • 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 (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.