Lac des Oiseaux fire, 31 July 2017 بحيرة الطيور · Chefia, Lac des Oiseaux
The fire started on 31 July 2017 in Lac des Oiseaux, Algeria, and satellites saw it burning for 4 days. Copernicus mapped a burnt perimeter of 289 hectares from satellite imagery, spread across 2 municipalities.
It is the 62th largest in El Tarf since 2016 (of 121 with a page). Number 60 in Algeria in 2017, of 173.
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- Burnt area
- 289ha
- Copernicus perimeter
- Duration
- 4days
- 31 Jul 2017 – 3 Aug 2017
- Municipalities hit
- 2
- communes
- Started on
- 31 Jul
- 2017
- Heat detections
- 27
- in a single hotspot: 152 MW
- Danger at start
- 36
- High · FWI index
- Average daily power
- 570MW
- 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 28 days without rain (1 mm or more) when it started. Rain came after the fire: 2.8 mm on 11 Aug.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
146 ha reached on 31 Jul0.8 %
-
144 ha reached on 31 Jul1.7 %
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
- Mixed forest50 %
- Other natural land48 %
- Agricultural areas1.4 %
Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).
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) |
|---|---|---|---|---|---|
| 31 Jul | 37.7 °C | 28 % | 31 km/h | 0.0 mm | High 36 |
| 1 Aug | 36.6 °C | 29 % | 29 km/h | 0.0 mm | High 38 |
| 2 Aug | 33.9 °C | 44 % | 35 km/h | 0.0 mm | High 33 |
| 3 Aug | 37.3 °C | 25 % | 34 km/h | 0.0 mm | Very high 43 |
| 4 Aug after | 36.3 °C | 30 % | 42 km/h | 0.0 mm | Very high 44 |
| 5 Aug after | 32.6 °C | 51 % | 30 km/h | 0.0 mm | High 28 |
| 6 Aug after | 31.9 °C | 54 % | 30 km/h | 0.0 mm | High 27 |
| 7 Aug after | 32.3 °C | 49 % | 35 km/h | 0.0 mm | High 28 |
| 8 Aug after | 35.8 °C | 36 % | 26 km/h | 0.0 mm | High 28 |
| 9 Aug after | 33.6 °C | 48 % | 38 km/h | 0.0 mm | High 32 |
| 10 Aug after | 28.8 °C | 63 % | 40 km/h | 0.0 mm | High 26 |
| 11 Aug after | 26.2 °C | 55 % | 41 km/h | 2.8 mm | Low 9 |
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.
Detections table · 27Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 6,376 haEl Tarf الطارف25 August 2026 · 4 days · 12 km away
- 6,415 haBouteldja بوثلجةAugust 2022 · 9 days · 20 km away
- 7,171 haBuqus بوقوس23 July 2017 · 13 days · 22 km away
- 2,887 haHammam Beni Salah حمام بني صالح15 August 2022 · 4 days · 25 km away
- 3,193 haMedjez Sfa مجاز الصفاءAugust 2022 · 2 days · 33 km away
- 5,857 haBeni Salah BoucheghoufAugust 2021 · 4 days · 35 km away
Frequently asked questions
- How long did the Lac des Oiseaux fire last?
- Copernicus dates it between 31 July 2017 and 3 August 2017: 4 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 289 hectares (2.9 km²). Official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Chefia (146 ha, 0.8 %); Lac des Oiseaux (144 ha, 1.7 %).
- Did the fire reach a town?
- The fire started in Lac des Oiseaux and came within 3.1 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 37.7 °C, humidity dropped to 25 % and gusts hit 35 km/h. The fire danger index (FWI) reached 43, class Very high.
- 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 · 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.
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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How we know this
- Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 27 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 (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.