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Treat fire, August 2017 تريعات · Treat

Out · last detection 25 Aug 2017, 12:11 UTC

The fire started on 25 August 2017 in Treat, Algeria, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 118 hectares from satellite imagery, spread across a single municipality.

It is the 47th largest in Annaba since 2016 (of 50 with a page). Number 149 in Algeria in 2017, of 173.

Burnt area
118ha
Copernicus perimeter
Duration
1day
25 Aug 2017 – 25 Aug 2017
Municipalities hit
1
communes
Started on
25 Aug
2017
Heat detections
1
in a single hotspot: 45 MW
Danger at start
29
High · FWI index
Energy released
45MW
sum of detected power

Where it burned

HOTSPOTS BY DAY 25 Aug25 Aug

How it evolved, day by day

25

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

The weather it burned in

35°high
33km/h · peak gust
32%lowest humidity

It had gone 12 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. Treat تريعات 6,076 inhabitants · 1.7 km from the town where it started
    118 ha reached on 25 Aug
    0.9 %

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

  • Mixed forest69 %
  • Other natural land31 %

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)
25 Aug 35.3 °C 32 % 33 km/h 0.0 mm High 29
26 Aug after 34.5 °C 41 % 32 km/h 0.0 mm High 29
27 Aug after 35.3 °C 30 % 34 km/h 0.0 mm High 32
28 Aug after 36.1 °C 26 % 32 km/h 0.0 mm High 36
29 Aug after 32.7 °C 44 % 33 km/h 0.0 mm High 30
30 Aug after 32.1 °C 49 % 32 km/h 0.0 mm High 26
31 Aug after 32.1 °C 49 % 32 km/h 0.0 mm High 29
1 Sept after 31.5 °C 55 % 41 km/h 0.0 mm High 29
2 Sept after 28.7 °C 46 % 39 km/h 0.0 mm High 26
3 Sept after 28.0 °C 44 % 34 km/h 0.0 mm High 25
4 Sept after 29.6 °C 42 % 39 km/h 0.0 mm High 28

Before and after, from space

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

Before · 18 Aug 2017
After · 1 Sept 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 26 August 2017 the air beside the fire reached 36 µg/m³ of PM2.5. That day averaged 18: 1.2 times the WHO daily guideline (15).

PM2.5 peak36 µg/m³
Days over the guideline2 days
PM1039 µg/m³
232425262728
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 · 1Every 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 Treat fire last?
Copernicus dates it between 25 August 2017 and 25 August 2017: 1 day between the first and last image with fire.
How much area did it burn?
The perimeter Copernicus measured from satellite imagery is 118 hectares (1.2 km²). Official national figures may differ.
Which municipalities burned?
The fire only entered Treat (118 ha, 0.9 %).
Did the fire reach a town?
The closest fire to a town centre came within 1.7 km of Treat. 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 35.3 °C, humidity dropped to 32 % and gusts hit 33 km/h. The fire danger index (FWI) reached 29, class 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

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.