Chanal fire, May 2024 Chanal, Comitán de Domínguez
The fire started on 4 May 2024 in Chanal, Mexico, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,774 hectares from heat detections, spread across 2 municipalities.
It is the 83th largest in Chiapas since 2016 (of 265 with a page). Number 120 in Mexico in 2024, of 289.
- Burnt area
- 2,774ha
- GWIS perimeter (Copernicus)
- Duration
- 11days
- 4 May 2024 – 14 May 2024
- Municipalities hit
- 2
- municipalities
- Started on
- 4 May
- 2024
- Heat detections
- 275
- in a single hotspot: 292 MW
- Danger at start
- 21
- Moderate · FWI index
- Average daily power
- 606MW
- 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 one day without rain (1 mm or more) when it started. Rain came after the fire: 4.8 mm on 17 May.
This area had burned before
73% of the perimeter overlaps earlier fires recorded since 2016: 2,191 ha in 2019. Part of it burned more than once, so the yearly figures add up to more than the 2,024 ha that had burned before.
What happened to each town
-
Chanal where it started2,472 ha reached on 4 May6.0 %
-
Comitán de Domínguez 166,178 inhabitants317 ha reached on 8 May0.3 %
Burnt area inside each municipality, from crossing the GWIS 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.
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) |
|---|---|---|---|---|---|
| 4 May | 26.9 °C | 22 % | 38 km/h | 0.0 mm | Moderate 21 |
| 5 May | 26.5 °C | 24 % | 26 km/h | 0.0 mm | Moderate 20 |
| 6 May | 27.2 °C | 22 % | 32 km/h | 0.0 mm | High 23 |
| 7 May | 28.2 °C | 18 % | 39 km/h | 0.0 mm | High 27 |
| 8 May | 27.0 °C | 21 % | 30 km/h | 0.0 mm | High 26 |
| 9 May | 26.2 °C | 27 % | 28 km/h | 0.0 mm | High 23 |
| 10 May | 26.2 °C | 27 % | 30 km/h | 0.0 mm | High 23 |
| 11 May | 24.9 °C | 32 % | 30 km/h | 0.1 mm | High 24 |
| 12 May | 26.0 °C | 35 % | 30 km/h | 0.3 mm | Moderate 21 |
| 13 May | 24.9 °C | 40 % | 31 km/h | 8.1 mm | Very low 2 |
| 14 May | 24.3 °C | 46 % | 27 km/h | 6.7 mm | Very low 1 |
| 15 May after | 19.4 °C | 76 % | 30 km/h | 2.6 mm | Very low 0 |
| 16 May after | 23.7 °C | 40 % | 26 km/h | 1.2 mm | Very low 2 |
| 17 May after | 23.1 °C | 46 % | 30 km/h | 4.8 mm | Very low 1 |
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 12 May 2024 the air beside the fire reached 64 µg/m³ of PM2.5. That day averaged 50: 3.3 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 · 275Every 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 Chanal fire last?
- GWIS (Copernicus) dates it between 4 May 2024 and 14 May 2024: 11 days between the first and last heat detection of the perimeter.
- How much area did it burn?
- The perimeter GWIS (Copernicus) rebuilt from heat detections is 2,774 hectares (27.7 km²). It is an estimate: official national figures may differ.
- Which municipalities burned?
- The fire entered 2 municipalities: Chanal (2,472 ha, 6.0 %); Comitán de Domínguez (317 ha, 0.3 %).
- What was the weather like?
- During the fire the temperature reached 28.2 °C, humidity dropped to 18 % and gusts hit 39 km/h. The fire danger index (FWI) reached 27, class High.
- Where does this data come from?
- From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Mexico (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: 911
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
Where this data comes from
The perimeter comes from the Copernicus Global Wildfire Information System (GWIS), which rebuilds it from MODIS and VIIRS heat detections and publishes it under CC BY 4.0. It is not measured on imagery as in Europe, so it is an estimate. 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 (Creative Commons Attribution 4.0 (CC BY 4.0)). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ from each country’s official figure.