Sour fire, October 2024 Sour
The fire started on 22 October 2024 in Sour, Lebanon, and satellites saw it burning for 3 days. Copernicus mapped a burnt perimeter of 253 hectares from satellite imagery, spread across a single municipality.
Number 4 in Lebanon in 2024, of 30.
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- Burnt area
- 253ha
- Copernicus perimeter
- Duration
- 3days
- 22 Oct 2024 – 24 Oct 2024
- Municipalities hit
- 1
- districts
- Started on
- 22 Oct
- 2024
- Heat detections
- 9
- in a single hotspot: 130 MW
- Danger at start
- 27
- High · FWI index
- Average daily power
- 23MW
- 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 4 days without rain (1 mm or more) when it started. Rain came after the fire: 3.5 mm on 2 Nov.
This area had burned before
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
What happened to each town
-
Sour where it started254 ha reached on 22 Oct0.6 %
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
- Other natural land85 %
- Mixed forest12 %
- Artificial surfaces2.8 %
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) |
|---|---|---|---|---|---|
| 22 Oct | 20.6 °C | 37 % | 52 km/h | 0.0 mm | High 27 |
| 23 Oct | 20.8 °C | 22 % | 32 km/h | 0.0 mm | High 26 |
| 24 Oct | 21.0 °C | 21 % | 31 km/h | 0.0 mm | High 27 |
| 25 Oct after | 22.5 °C | 17 % | 34 km/h | 0.0 mm | High 31 |
| 26 Oct after | 22.9 °C | 25 % | 27 km/h | 0.0 mm | High 29 |
| 27 Oct after | 23.1 °C | 31 % | 26 km/h | 0.0 mm | High 27 |
| 28 Oct after | 23.0 °C | 45 % | 26 km/h | 0.0 mm | High 22 |
| 29 Oct after | 21.5 °C | 46 % | 25 km/h | 0.0 mm | Moderate 20 |
| 30 Oct after | 20.4 °C | 58 % | 19 km/h | 0.0 mm | Moderate 15 |
| 31 Oct after | 20.7 °C | 61 % | 23 km/h | 0.0 mm | Moderate 14 |
| 1 Nov after | 23.1 °C | 40 % | 34 km/h | 0.0 mm | Moderate 20 |
| 2 Nov after | 22.6 °C | 55 % | 28 km/h | 3.5 mm | Very low 5 |
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.
The smoke
CAMS · CopernicusOn 27 October 2024 the air beside the fire reached 30 µg/m³ of PM2.5. That day averaged 21: 1.4 times the WHO daily guideline (15).
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 · 9Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
Frequently asked questions
- How long did the Sour fire last?
- Copernicus dates it between 22 October 2024 and 24 October 2024: 3 days between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 253 hectares (2.5 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Sour (254 ha, 0.6 %).
- What was the weather like?
- During the fire the temperature reached 21.0 °C, humidity dropped to 21 % and gusts hit 52 km/h. The fire danger index (FWI) reached 27, class High.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Lebanon (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.
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
How we know this
- Perimeter: EFFIS (Copernicus), mapped on satellite imagery.
- Dates from the perimeter: the VIIRS detections inside it did not change them. 9 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 ADM2 (Public Domain). 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.