Burned area
satellite onlyPerimeter 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.
The fire started on 12 May 2021 in Jebel Saman, Syria, and satellites saw it burning for 5 days. Copernicus mapped a burnt perimeter of 130 hectares from satellite imagery, spread across a single municipality.
It is the 48th largest in Aleppo since 2016 (of 59 with a page). Number 19 in Syria in 2021, of 23.
Perimeter published by EFFIS (Copernicus).
No official record is matched to this page to compare it with.
12 May 2021 to 16 May 2021: first and last day with fire on the page.
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.
First day with fire seen by the satellites or the perimeter.
No official record is matched to this page, so the alert time and the cause are not known here.
Fire Weather Index (Canadian system) computed by WorldFires for the day the fire started. Consecutive days without rain before: 29.
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
High of 33.1 °C and minimum humidity of 15% on 13 May 2021; gusts of 50 km/h on 16 May 2021.
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.
Estimated residents inside the perimeter and 3.4 ha of built-up area (100 m grid, epoch 2020).
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.
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.
Every night a snapshot of what the page shows is saved. If anything changes, it appears in the list as a log entry.
A 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.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021-05-12 | 0 | 0 | 32.3 | 13.4 | 13 | 18.4 | 39.6 | 0 | 55 | extremo | 1 |
| 2021-05-13 | 0 | 0 | 33.1 | 14.1 | 15 | 19.5 | 41.8 | 0 | 56.9 | extremo | 1 |
| 2021-05-14 | 0 | 0 | 33 | 15 | 18 | 21.3 | 48.2 | 0 | 57 | extremo | 1 |
| 2021-05-15 | 0 | 0 | 32.1 | 15.1 | 24 | 23.1 | 49.7 | 0 | 53.7 | extremo | 1 |
| 2021-05-16 | 0 | 0 | 30.3 | 15.8 | 24 | 22.7 | 50.4 | 0 | 51.4 | extremo | 1 |
| 2021-05-17 | 0 | 0 | 30.1 | 13.4 | 22 | 22.7 | 50.4 | 0 | 51.8 | extremo | 0 |
| 2021-05-18 | 0 | 0 | 31.4 | 16 | 27 | 20.9 | 43.9 | 0 | 48 | muy_alto | 0 |
| 2021-05-19 | 0 | 0 | 32.9 | 16.2 | 28 | 18.4 | 38.9 | 0 | 45.3 | muy_alto | 0 |
| 2021-05-20 | 0 | 0 | 37.2 | 15.3 | 14 | 14.6 | 34.2 | 0 | 49.3 | muy_alto | 0 |
| 2021-05-21 | 0 | 0 | 35 | 17.9 | 19 | 25.9 | 50.8 | 0 | 64.2 | extremo | 0 |
| 2021-05-22 | 0 | 0 | 27.1 | 18.1 | 30 | 29 | 60.5 | 0 | 54.1 | extremo | 0 |
| 2021-05-23 | 0 | 0 | 28.8 | 16.9 | 24 | 24.3 | 46.8 | 0 | 48.9 | muy_alto | 0 |
| 2021-05-24 | 0 | 0 | 32.3 | 17.6 | 17 | 17.4 | 38.9 | 0 | 46.6 | muy_alto | 0 |
| 2021-05-25 | 0 | 0 | 34.4 | 18.9 | 21 | 22 | 47.5 | 0 | 52.1 | extremo | 0 |
| 2021-05-26 | 0 | 0 | 36.2 | 17.8 | 12 | 23.8 | 46.8 | 0 | 62.9 | extremo | 0 |
It is generated in your browser from this page’s data: one file per fire, aggregated by day and without individual hotspots.
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), GHSL (JRC). Open-Meteo.com · How we build fire pages: methodology
We have the Copernicus perimeter for this fire, but the VIIRS sensors did not capture it in enough detail: no day-by-day evolution, but the split by municipality is there.
It had gone 29 days without rain (1 mm or more) when it started.
No earlier perimeters overlap this fire since 2016, when the satellite record begins.
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.
Land cover inside the perimeter as reported by Copernicus EFFIS (outside the Corine Land Cover area).
Inside the perimeter there were about 3.4 hectares of built-up land and about 500 residents (GHSL 2020, 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
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)
Started with Very dry air: 52 % of the area in Syria
| Day | High | Min. humidity | Peak gust | Rain | Danger (FWI) |
|---|---|---|---|---|---|
| 12 May | 32.3 °C | 13 % | 40 km/h | 0.0 mm | Extreme 55 |
| 13 May | 33.1 °C | 15 % | 42 km/h | 0.0 mm | Extreme 57 |
| 14 May | 33.0 °C | 18 % | 48 km/h | 0.0 mm | Extreme 57 |
| 15 May | 32.1 °C | 24 % | 50 km/h | 0.0 mm | Extreme 54 |
| 16 May | 30.3 °C | 24 % | 50 km/h | 0.0 mm | Extreme 51 |
| 17 May after | 30.1 °C | 22 % | 50 km/h | 0.0 mm | Extreme 52 |
| 18 May after | 31.4 °C | 27 % | 44 km/h | 0.0 mm | Very high 48 |
| 19 May after | 32.9 °C | 28 % | 39 km/h | 0.0 mm | Very high 45 |
| 20 May after | 37.2 °C | 14 % | 34 km/h | 0.0 mm | Very high 49 |
| 21 May after | 35.0 °C | 19 % | 51 km/h | 0.0 mm | Extreme 64 |
| 22 May after | 27.1 °C | 30 % | 60 km/h | 0.0 mm | Extreme 54 |
| 23 May after | 28.8 °C | 24 % | 47 km/h | 0.0 mm | Very high 49 |
| 24 May after | 32.3 °C | 17 % | 39 km/h | 0.0 mm | Very high 47 |
| 25 May after | 34.4 °C | 21 % | 48 km/h | 0.0 mm | Extreme 52 |
| 26 May after | 36.2 °C | 12 % | 47 km/h | 0.0 mm | Extreme 63 |
It started with an FWI of 55.0, a minimum humidity of 13% and 29 days without rain. Fires in the area that started in weather like this since 2016: 18.
First rain (1 mm or more) after it ended: none in the following ten days.
First rain (1 mm or more) after it ended: none in the following ten days.
First rain (1 mm or more) after it ended: none in the following ten days.
First rain (1 mm or more) after it ended: none in the following ten days.
First rain (1 mm or more) after it ended: none in the following ten days.
It stayed below its twins: 130 ha against a median of 204 ha. It lasted 5 days, against 2 days.
In 16 of 18, 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 1.5 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
It was considered over on 16 May, and not even 1 mm fell in the following ten days: it went out without rain. Twins with rain when they ended: 2 of 18, with a median of 1.5 mm.
Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)
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.
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
RSS Changes to this page With cross-checks and a citable version
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.
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 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.