Burned area
satellite only312ha
Perimeter published by EFFIS (Copernicus).
- Source
- EFFIS (Copernicus)
- Date
- perimeter revised on 26 January 2022
+− cross-check
No official record is matched to this page to compare it with.
DZ · Algeria · –
Oued El Aneb fire, August 2020 Oued El Aneb
Out · last detection 12 Aug 2020, 12:05 UTC
The fire started on 5 August 2020 in Oued El Aneb, Algeria, and satellites saw it burning for 10 days. Copernicus mapped a burnt perimeter of 312 hectares from satellite imagery, spread across a single municipality.
It is the 21th largest in Annaba since 2016 (of 50 with a page). Number 97 in Algeria in 2020, of 236.
Use this data
Compare with…
Use this data
Fire page data · version 2026-10-24matches the official recordwith caveatssatellite onlymodel
When copying, the sentence is
Tick the figures you want: they make up the lede and the CSV.
Duration by satellite
satellite only10days
5 Aug 2020 to 14 Aug 2020: first and last day with fire on the page.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- last detection: 12 Aug 2020, 12:05 UTC
+− cross-check
Satellites pass a few times a day and cloud or smoke can hide the fire: a lack of detections is not an official extinction. Each country’s emergency service declares a fire contained or out.
Start
satellite only5 Aug 2020
First day with fire seen by the satellites or the perimeter.
- Source
- EFFIS (Copernicus) · NASA FIRMS · VIIRS
- Date
- 5 Aug 2020
+− cross-check
No official record is matched to this page, so the alert time and the cause are not known here.
Hotspots
satellite only7
VIIRS detections at 375 m. Most intense hotspot: 56 MW.
- Source
- NASA FIRMS · VIIRS (Suomi NPP)
- Date
- 5 Aug 2020 – 14 Aug 2020
+− cross-check
There is no official record to compare with. Each hotspot is a pixel detected in one satellite pass, not a separate fire.
The worst day
satellite only249MW
Total radiative power on 12 August 2020; hotspots that day: 6.
- Source
- NASA FIRMS · VIIRS (FRP)
- Date
- 12 Aug 2020
+− cross-check
Fire radiative power (FRP) measures the energy the fire gives off when the satellite passes. Added up by day, it compares intensity, not area.
Danger at the start
model33.0FWI · high
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 20.
- Source
- WorldFires calculation (Canadian FWI system)
- Date
- 5 Aug 2020, local noon
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
This is an index computed from weather model data, not a measurement of the fire nor an official warning. Danger warnings are issued by each country’s authority. Emergency number and official warnings
Weather during the fire
model40.3°C · 22% RH
High of 40.3 °C and minimum humidity of 22% on 12 August 2020; gusts of 42 km/h on 10 August 2020.
- Source
- weather model at the fire’s grid cell
- Date
- 5 Aug 2020 – 14 Aug 2020
- Model
- ERA5 0,25° (ECMWF · Copernicus C3S) · Open-Meteo.com
+− cross-check
These are model values for a cell of about 25 km, not from a weather station: they may differ from what was measured on the ground.
This page’s change log has been kept since 24 October 2026: every night what it publishes is compared and the difference is logged. Anything earlier is reconstructed from each source’s date and marked as reconstructed.
Show
-
· reconstructed weatherWeather and FWI computed from the ERA5 reanalysis
-
· reconstructed perimeterEFFIS (Copernicus) revises the perimeter
What was saved on 24 October 2026
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
- Area
- 312 ha
- Dates
- 5 Aug 2020 – 14 Aug 2020
- Name
- Oued El Aneb
- Official record
- —
Versioned permanent link
https://worldfires.org/en/fire/oued-el-aneb-2020-08?v=2026-10-24A version keeps the area, dates, name and official record; the area as it was logged (changes under 2% are not logged). The map, hotspots and weather always show today’s data.
Citation
A lede of about 60 words figures only, no adjectives
CSV for this fire oued-el-aneb-2020-08.csv · daily, no individual hotspots
| fecha | focos_viirs | frp_mw | tmax_c | tmin_c | hr_min_pct | viento_max_kmh | racha_max_kmh | precip_mm | fwi | clase_fwi | dentro_del_incendio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020-08-05 | 0 | 0 | 31.7 | 20.6 | 32 | 14.1 | 37.4 | 0 | 33 | alto | 1 |
| 2020-08-06 | 0 | 0 | 32.1 | 19.4 | 34 | 14.1 | 37.1 | 0 | 33.2 | alto | 1 |
| 2020-08-07 | 0 | 0 | 32.7 | 19.1 | 36 | 13.4 | 35.6 | 0 | 32.8 | alto | 1 |
| 2020-08-08 | 0 | 0 | 32.8 | 19.2 | 38 | 15.1 | 40 | 0 | 34.3 | alto | 1 |
| 2020-08-09 | 0 | 0 | 33.7 | 20.3 | 32 | 13.2 | 35.6 | 0 | 33.2 | alto | 1 |
| 2020-08-10 | 1 | 8 | 35.4 | 19.6 | 27 | 17.8 | 41.8 | 0 | 41.4 | muy_alto | 1 |
| 2020-08-11 | 0 | 0 | 39.2 | 23.1 | 22 | 16.4 | 39.2 | 0 | 46.5 | muy_alto | 1 |
| 2020-08-12 | 6 | 249 | 40.3 | 24.7 | 22 | 15.3 | 38.5 | 0 | 46.4 | muy_alto | 1 |
| 2020-08-13 | 0 | 0 | 40.3 | 26.1 | 23 | 16.7 | 36.7 | 0.4 | 48.2 | muy_alto | 1 |
| 2020-08-14 | 0 | 0 | 38.4 | 26 | 33 | 15.6 | 34.9 | 0 | 43.6 | muy_alto | 1 |
| 2020-08-15 | 0 | 0 | 39.4 | 25.2 | 21 | 12 | 29.5 | 0 | 43.1 | muy_alto | 0 |
| 2020-08-16 | 0 | 0 | 34.6 | 25 | 43 | 13.4 | 42.5 | 0 | 33.9 | alto | 0 |
| 2020-08-17 | 0 | 0 | 35.1 | 24.2 | 32 | 12.6 | 34.6 | 0 | 33.7 | alto | 0 |
| 2020-08-18 | 0 | 0 | 35.4 | 22.7 | 35 | 11.7 | 31.7 | 0 | 33.1 | alto | 0 |
| 2020-08-19 | 0 | 0 | 36.4 | 22.5 | 25 | 12.8 | 35.3 | 0 | 38.7 | muy_alto | 0 |
| 2020-08-20 | 0 | 0 | 40.7 | 22.8 | 25 | 13 | 36.7 | 0 | 41.9 | muy_alto | 0 |
| 2020-08-21 | 0 | 0 | 43.7 | 25.1 | 20 | 14.3 | 40.3 | 0.2 | 49.5 | muy_alto | 0 |
| 2020-08-22 | 0 | 0 | 36.1 | 25.3 | 41 | 14.2 | 38.5 | 0 | 36.7 | alto | 0 |
| 2020-08-23 | 0 | 0 | 34 | 25 | 44 | 12.6 | 33.1 | 0 | 31.8 | alto | 0 |
| 2020-08-24 | 0 | 0 | 33.1 | 22.7 | 37 | 14.8 | 38.2 | 0 | 33.7 | alto | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
Live widget for your story
It updates itself while the fire is still active and links to this page. Free, with the attribution shown at the bottom.
Sources for this page: EFFIS (Copernicus), NASA FIRMS (VIIRS), ERA5 (ECMWF/Copernicus C3S) · Open-Meteo.com (CC BY 4.0). Open-Meteo.com · How we build fire pages: methodology
- Burnt area
- 312ha
- Copernicus perimeter
- Duration
- 10days
- 5 Aug 2020 – 14 Aug 2020
- Municipalities hit
- 1
- communes
- Started on
- 5 Aug
- 2020
- Heat detections
- 7
- in a single hotspot: 56 MW
- Danger at start
- 33
- High · FWI index
- Average daily power
- 128MW
- detected power per day, on average
Where it burned
HOTSPOTS BY DAY
5 Aug14 Aug
12 Aug 2020
How it evolved, day by day
10 Aug
12 Aug
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
40°high
42km/h · peak gust
22%lowest humidity
It had gone 20 days without rain (1 mm or more) when it started.
This area had burned before
58% of the perimeter overlaps earlier fires recorded since 2016: 181 ha in 2017.
What happened to each town
-
Oued El Aneb where it started313 ha reached on 10 Aug1.6 %
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 land64 %
- Mixed forest36 %
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) |
|---|---|---|---|---|---|
| 5 Aug | 31.7 °C | 32 % | 37 km/h | 0.0 mm | High 33 |
| 6 Aug | 32.1 °C | 34 % | 37 km/h | 0.0 mm | High 33 |
| 7 Aug | 32.7 °C | 36 % | 36 km/h | 0.0 mm | High 33 |
| 8 Aug | 32.8 °C | 38 % | 40 km/h | 0.0 mm | High 34 |
| 9 Aug | 33.7 °C | 32 % | 36 km/h | 0.0 mm | High 33 |
| 10 Aug | 35.4 °C | 27 % | 42 km/h | 0.0 mm | Very high 41 |
| 11 Aug | 39.2 °C | 22 % | 39 km/h | 0.0 mm | Very high 46 |
| 12 Aug | 40.3 °C | 22 % | 38 km/h | 0.0 mm | Very high 46 |
| 13 Aug | 40.3 °C | 23 % | 37 km/h | 0.4 mm | Very high 48 |
| 14 Aug | 38.4 °C | 33 % | 35 km/h | 0.0 mm | Very high 44 |
| 15 Aug after | 39.4 °C | 21 % | 30 km/h | 0.0 mm | Very high 43 |
| 16 Aug after | 34.6 °C | 43 % | 42 km/h | 0.0 mm | High 34 |
| 17 Aug after | 35.1 °C | 32 % | 35 km/h | 0.0 mm | High 34 |
| 18 Aug after | 35.4 °C | 35 % | 32 km/h | 0.0 mm | High 33 |
| 19 Aug after | 36.4 °C | 25 % | 35 km/h | 0.0 mm | Very high 39 |
| 20 Aug after | 40.7 °C | 25 % | 37 km/h | 0.0 mm | Very high 42 |
| 21 Aug after | 43.7 °C | 20 % | 40 km/h | 0.2 mm | Very high 50 |
| 22 Aug after | 36.1 °C | 41 % | 38 km/h | 0.0 mm | High 37 |
| 23 Aug after | 34.0 °C | 44 % | 33 km/h | 0.0 mm | High 32 |
| 24 Aug after | 33.1 °C | 37 % | 38 km/h | 0.0 mm | High 34 |
Its twins: fires that started in the same weather
It started with an FWI of 33.0, a minimum humidity of 32% and 20 days without rain. Fires in the area that started in weather like this since 2016: 16.
FWI at the start
33.0
Minimum humidity
32 %
Days without rain
20
this fire
chosen twins
rest of the area
Almost identicalSimilar
Outlines of the closest twins
This fire · Oued El Aneb fire, August 2020
312 ha
10 days
FWI 33.0
Min. humidity 32 %
Asfour fire, July 2017
460 ha
5 days
FWI 34.3
Min. humidity 32 %
33 km away, in 2017
First rain (1 mm or more) after it ended: 2.8 mm on 11 Aug.
Es Sebt fire, July 2017
265 ha
2 days
FWI 30.3
Min. humidity 32 %
53 km away, in 2017
First rain (1 mm or more) after it ended: none in the following ten days.
Chefia fire, July 2017
154 ha
6 days
FWI 34.9
Min. humidity 32 %
44 km away, in 2017
First rain (1 mm or more) after it ended: 2.8 mm on 11 Aug.
Chefia fire, July 2017
1,092 ha
6 days
FWI 33.8
Min. humidity 31 %
41 km away, in 2017
First rain (1 mm or more) after it ended: 2.8 mm on 11 Aug.
Lac des Oiseaux fire, July 2017
358 ha
7 days
FWI 33.0
Min. humidity 34 %
44 km away, in 2017
First rain (1 mm or more) after it ended: 2.8 mm on 11 Aug.
What happened to them
- 4 days
- median duration
- 253 ha
- median area
- 12 %
- went past 1,000 ha
- 2.8 mm
- rain at the end (median; 6 of 16 had it)
It burned an area similar to its twins (312 ha against a median of 253 ha) and lasted 10 days, against 4 days.
In 10 of 16, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.8 mm.
This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it
How it ended
—first rain
—no rain in ten days
42km/h · max. gust
It was considered over on 14 Aug, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 6 of 16, with a median of 2.8 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
How a twin is chosen
- Same area: fires that have already ended, less than 250 km from this one, since 2016.
- Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
- Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
- Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
- They are sorted by similarity, and the outlines of the first five are drawn.
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
↔
Before · 29 Jul 2020
After · 21 Aug 2020
Sentinel-2 did not pass over on that day. Try another date, or use false colour, which is daily.
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 3 August 2020 the air beside the fire reached 18 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
PM2.5 peak18 µg/m³
Days over the guideline0 days
PM1030 µg/m³
WHO 15
3 Aug5 Aug7 Aug9 Aug11 Aug
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 · 7Every 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
Frequently asked questions
- How long did the Oued El Aneb fire last?
- According to the heat detections seen by satellite inside the perimeter, it burned from 5 August 2020 to 14 August 2020 (10 days). The perimeter dates it from 5 August 2020 to 8 August 2020.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 312 hectares (3.1 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Oued El Aneb (313 ha, 1.6 %).
- What was the weather like?
- During the fire the temperature reached 40.3 °C, humidity dropped to 22 % and gusts hit 42 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 Algeria (geoBoundaries). It is not an official report.
- How did the fires that started in similar weather in this area end?
- Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 16. Their median duration was 4 days and their median area 253 ha; 12 % went past 1,000 ha. In 10 of 16, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.8 mm.
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.
RSS Changes to this page With cross-checks and a citable version
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 5 August 2020 to 8 August 2020. 7 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.
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.