How long did the Mangualde fire last?

Copernicus dates it between 26 July 2017 and 28 July 2017: 3 days between the first and last image with fire. According to ICNF, it was detected on 26 July 2017 at 11:47 and declared extinguished on 26 July 2017.

How much area did it burn?

The perimeter Copernicus measured from satellite imagery is 1,667 hectares (16.7 km²). Official national figures may differ.

Which municipalities burned?

The fire entered 4 municipalities: Santiago de Cassurrães e Póvoa de Cervães (655 ha, 22 %); Cativelos (614 ha, 43 %); Arcozelo (308 ha, 13 %); Cunha Baixa (91 ha, 5.9 %).

Did the fire reach a town?

The closest fire to a town centre came within 0.5 km of Cativelos. That is the distance to the perimeter or nearest hotspot; it does not mean it entered the houses.

What was the weather like?

During the fire the temperature reached 34.5 °C, humidity dropped to 22 % and gusts hit 40 km/h. The fire danger index (FWI) reached 44, 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.

PT · Portugal · 2017-07-26 → 2017-07-28

Mangualde fire, July 2017 Santiago de Cassurrães e Póvoa de Cervães, Cativelos, Arcozelo

Out · last detection 29 Jul 2017, 02:37 UTC

The fire started on 26 July 2017 in Cativelos, Portugal, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 1,667 hectares from satellite imagery, spread across 4 municipalities. According to ICNF, it was detected on 26 July 2017 at 11:47 and declared extinguished on 26 July 2017.

It is the 2th largest in Gouveia since 2016 (of 10 with a page). Number 39 in Portugal in 2017, of 210.

Burnt area: 1,667ha; Copernicus perimeter
Duration: 3days; 26 Jul 2017 – 28 Jul 2017
Municipalities hit: 4; freguesias
Started on: 26 Jul; 2017
Heat detections: 35; in a single hotspot: 282 MW
Danger at start: 44; Very high · FWI index
Energy released: 1.2GW; sum of detected power

Play back 29 Jul 2017

HOTSPOTS BY DAY 26 Jul28 Jul

How it evolved, day by day

272829

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

The weather it burned in

34°high

40km/h · peak gust

22%lowest humidity

It had gone 6 days without rain (1 mm or more) when it started.

This area had burned before

9% of the perimeter overlaps earlier fires recorded since 2016: 148 ha in 2016.

What happened to each town

Santiago de Cassurrães e Póvoa de Cervães 1,218 inhabitants · 0.6 km from the town

655 ha reached on 27 Jul

22 %
Cativelos 610 inhabitants · 0.5 km from the town

614 ha reached on 28 Jul

43 %
Arcozelo 570 inhabitants · 0.6 km from the town

308 ha

13 %
Cunha Baixa 801 inhabitants · 1.3 km from the town where it started

91 ha reached on 27 Jul

5.9 %

Burnt area inside each municipality, from crossing the official perimeter with administrative boundaries. The distance is from the town centre to the nearest fire: staying a kilometre away does not mean it reached the houses.

What burned

Scrub and transitional woodland70 %
Agricultural areas17 %
Other natural land11 %
Coniferous forest1.9 %

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

Official record

According to ICNF, this fire started on 26 July 2017 and burned 1,439 ha (the satellite measured 1,667 ha).

Mangualde Cunha Baixa 26 July 2017 · 11:47 1,439 ha · extinguished on 26 July 2017 · cause: rekindling

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)
26 Jul	34.5 °C	22 %	40 km/h	0.0 mm	Very high 44
27 Jul	33.1 °C	27 %	35 km/h	0.0 mm	Very high 40
28 Jul	32.6 °C	26 %	35 km/h	0.0 mm	Very high 41
29 Jul after	31.8 °C	40 %	40 km/h	0.0 mm	High 37
30 Jul after	29.5 °C	28 %	35 km/h	0.0 mm	High 33
31 Jul after	24.1 °C	47 %	31 km/h	0.1 mm	High 27
1 Aug after	27.2 °C	29 %	35 km/h	0.0 mm	High 32
2 Aug after	30.6 °C	24 %	33 km/h	0.0 mm	High 36
3 Aug after	32.0 °C	36 %	35 km/h	0.0 mm	High 36
4 Aug after	34.4 °C	31 %	31 km/h	0.0 mm	High 36
5 Aug after	32.3 °C	38 %	37 km/h	0.0 mm	High 36
6 Aug after	32.9 °C	26 %	56 km/h	0.0 mm	Extreme 53
7 Aug after	26.0 °C	41 %	40 km/h	0.0 mm	High 34
8 Aug after	27.4 °C	24 %	43 km/h	0.0 mm	Very high 42

Before and after, from space

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

↔

Before · 19 Jul 2017

After · 4 Aug 2017

Before After

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 27 July 2017 the air beside the fire reached 12 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).

PM2.5 peak12 µg/m³

Days over the guideline0 days

PM1021 µg/m³

24252627282930311

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 · 35Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

All fires in Portugal ›

Frequently asked questions

How long did the Mangualde fire last?: Copernicus dates it between 26 July 2017 and 28 July 2017: 3 days between the first and last image with fire. According to ICNF, it was detected on 26 July 2017 at 11:47 and declared extinguished on 26 July 2017.
How much area did it burn?: The perimeter Copernicus measured from satellite imagery is 1,667 hectares (16.7 km²). Official national figures may differ.
Which municipalities burned?: The fire entered 4 municipalities: Santiago de Cassurrães e Póvoa de Cervães (655 ha, 22 %); Cativelos (614 ha, 43 %); Arcozelo (308 ha, 13 %); Cunha Baixa (91 ha, 5.9 %).
Did the fire reach a town?: The closest fire to a town centre came within 0.5 km of Cativelos. That is the distance to the perimeter or nearest hotspot; it does not mean it entered the houses.
What was the weather like?: During the fire the temperature reached 34.5 °C, humidity dropped to 22 % and gusts hit 40 km/h. The fire danger index (FWI) reached 44, 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

Satellite cross-check

NASA FIRMS ↗
EFFIS · Copernicus ↗

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.

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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.

Where it burned