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Gouraya fire, July 2019 قوراية · Gouraya, Messelmoun

Out · last detection 29 Jul 2019, 12:31 UTC

The fire started on 27 July 2019 in Gouraya, Algeria, and satellites saw it burning for 2 days. Copernicus mapped a burnt perimeter of 657 hectares from satellite imagery, spread across 2 municipalities.

It is the 10th largest in Tipaza since 2016 (of 59 with a page). Number 16 in Algeria in 2019, of 78.

Burnt area
657ha
Copernicus perimeter
Duration
2days
27 Jul 2019 – 28 Jul 2019
Municipalities hit
2
communes
Started on
27 Jul
2019
Heat detections
25
in a single hotspot: 117 MW
Danger at start
52
Extreme · FWI index
Energy released
292MW
sum of detected power

Where it burned

29 Jul 2019
HOTSPOTS BY DAY 27 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

30°high
56km/h · peak gust
23%lowest humidity

It had gone 19 days without rain (1 mm or more) when it started.

This area had burned before

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

What happened to each town

  1. Gouraya قوراية 20,144 inhabitants · 3.9 km from the town where it started
    657 ha reached on 27 Jul
    7.5 %
  2. 2 ha
    0.0 %

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

  • Mixed forest76 %
  • Other natural land21 %
  • Agricultural areas1.8 %
  • Broadleaved forest0.6 %
  • Artificial surfaces0.6 %

Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).

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 Jul 29.5 °C 23 % 56 km/h 0.0 mm Extreme 52
28 Jul 27.6 °C 45 % 46 km/h 0.0 mm High 37
29 Jul after 28.7 °C 53 % 27 km/h 0.0 mm High 24
30 Jul after 28.3 °C 55 % 28 km/h 0.0 mm High 24
31 Jul after 28.8 °C 65 % 50 km/h 0.0 mm High 27
1 Aug after 31.5 °C 47 % 35 km/h 0.0 mm High 25
2 Aug after 29.5 °C 62 % 28 km/h 0.0 mm Moderate 20
3 Aug after 29.2 °C 64 % 27 km/h 0.0 mm Moderate 20
4 Aug after 30.2 °C 60 % 27 km/h 0.0 mm Moderate 20
5 Aug after 31.7 °C 56 % 23 km/h 0.0 mm Moderate 21
6 Aug after 33.3 °C 45 % 28 km/h 0.0 mm High 24
7 Aug after 34.5 °C 32 % 23 km/h 0.0 mm High 33

Before and after, from space

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

Before · 20 Jul 2019
After · 4 Aug 2019

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 1 August 2019 the air beside the fire reached 31 µg/m³ of PM2.5. That day averaged 20: 1.3 times the WHO daily guideline (15).

PM2.5 peak31 µg/m³
Days over the guideline3 days
PM1073 µg/m³
252627282930311
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 · 25Every 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 Algeria ›

Frequently asked questions

How long did the Gouraya fire last?
Copernicus dates it between 27 July 2019 and 28 July 2019: 2 days between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 657 hectares (6.6 km²). Official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Gouraya (657 ha, 7.5 %); Messelmoun (2 ha, 0.0 %).
Did the fire reach a town?
The closest fire to a town centre came within 3.9 km of Gouraya. 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 29.5 °C, humidity dropped to 23 % and gusts hit 56 km/h. The fire danger index (FWI) reached 52, class Extreme.
Where does this data come from?
From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Algeria (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: 14 · 1021

Satellite cross-check

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 14 · 1021.

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-ShareAlike 2.0). 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.