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Ajuchitlán del Progreso fire, 8 May 2024 Ajuchitlán del Progreso

Out · last detection 25 May 2024, 20:14 UTC

The fire started on 8 May 2024 in Ajuchitlán del Progreso, Mexico, and satellites saw it burning for 18 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 3,396 hectares from heat detections, spread across a single municipality.

It is the 197th largest in Guerrero since 2016 (of 612 with a page). Number 93 in Mexico in 2024, of 289.

The power measured by the satellite is low (17.4 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Compare with…
Burnt area
3,396ha
GWIS perimeter (Copernicus)
Duration
18days
8 May 2024 – 25 May 2024
Municipalities hit
1
municipalities
Started on
8 May
2024
Heat detections
159
in a single hotspot: 17 MW
Danger at start
40
Very high · FWI index
Average daily power
57MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 8 May25 May
25 May 2024

How it evolved, day by day

9 May 2024 · 48 MW · 3 10 May 2024 · 11 MW · 1 12 May 2024 · 35 MW · 7 13 May 2024 · 55 MW · 7 14 May 2024 · 312 MW · 66 15 May 2024 · 88 MW · 15 16 May 2024 · 51 MW · 13 17 May 2024 · 102 MW · 27 18 May 2024 · 27 MW · 9 19 May 2024 · 6 MW · 3 20 May 2024 · 51 MW · 5 22 May 2024 · 1 MW · 1 24 May 2024 · 1 MW · 1 25 May 2024 · 6 MW · 1
9 May 12 May 14 May 16 May 18 May 20 May 24 May

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

The weather it burned in

37°high
37km/h · peak gust
17%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started.

This area had burned before

95% of the perimeter overlaps earlier fires recorded since 2016: 881 ha in 2016, 1,836 ha in 2017, 854 ha in 2018, 2,821 ha in 2019, 1,356 ha in 2020, 11 ha in 2021, 2,691 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 3,212 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 2.1% of the area of London (34 km² against 1,583 km²).

London boundary: geoBoundaries · Office for National Statistics (Open Government Licence v3.0).

This compares size, not location: both shapes are at the same scale, north up, centred on each other.

What happened to each town

  1. Ajuchitlán del Progreso where it started
    3,414 ha reached on 9 May
    1.7 %

Burnt area inside each municipality, from crossing the GWIS 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.

People and buildings inside the perimeter

GHSL 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, 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. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

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

Official record

According to CONAFOR, this fire started on 13 May 2024 and burned 4,778 ha (the satellite measured 3,396 ha). The two figures differ a lot, so these may not be exactly the same fire: take them as nearby records.

CONAFOR (Comisión Nacional Forestal), estadística de incendios forestales en datos.gob.mx (CC BY 4.0). This is the agency’s consolidated statistic: it measures the area in its own way, which is why it can differ from the satellite.

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)
8 May 35.9 °C 17 % 37 km/h 0.0 mm Very high 40
9 May 36.6 °C 19 % 32 km/h 0.0 mm Very high 40
10 May 35.6 °C 21 % 31 km/h 0.0 mm Very high 39
11 May 34.5 °C 26 % 34 km/h 0.0 mm High 37
12 May 34.5 °C 21 % 35 km/h 0.0 mm Very high 38
13 May 33.5 °C 23 % 32 km/h 0.0 mm Very high 40
14 May 34.1 °C 24 % 32 km/h 0.0 mm Very high 38
15 May 33.7 °C 31 % 32 km/h 0.3 mm High 35
16 May 32.7 °C 32 % 34 km/h 0.1 mm High 33
17 May 34.0 °C 28 % 35 km/h 0.0 mm High 34
18 May 34.0 °C 29 % 32 km/h 0.0 mm High 34
19 May 34.8 °C 27 % 35 km/h 0.3 mm High 36
20 May 33.1 °C 31 % 28 km/h 0.4 mm High 34
21 May 34.2 °C 30 % 36 km/h 0.1 mm High 34
22 May 32.7 °C 33 % 30 km/h 0.1 mm High 33
23 May 34.5 °C 24 % 34 km/h 0.0 mm High 34
24 May 34.8 °C 19 % 34 km/h 0.0 mm High 37
25 May 35.9 °C 20 % 34 km/h 0.0 mm Very high 39
26 May after 35.1 °C 25 % 35 km/h 0.4 mm High 37
27 May after 36.0 °C 22 % 31 km/h 0.0 mm Very high 38
28 May after 35.1 °C 20 % 32 km/h 0.0 mm Very high 38
29 May after 33.6 °C 26 % 30 km/h 0.8 mm High 30
30 May after 34.3 °C 27 % 34 km/h 0.2 mm High 32
31 May after 35.1 °C 25 % 32 km/h 0.0 mm High 34
1 Jun after 34.9 °C 23 % 33 km/h 0.0 mm High 34
2 Jun after 36.0 °C 18 % 37 km/h 0.0 mm Very high 43
3 Jun after 35.3 °C 21 % 38 km/h 0.0 mm Very high 42
4 Jun after 34.5 °C 17 % 36 km/h 0.0 mm Very high 40

Before and after, from space

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

Before · 1 May 2024
After · 1 Jun 2024

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 14 May 2024 the air beside the fire reached 43 µg/m³ of PM2.5. That day averaged 29: 1.9 times the WHO daily guideline (15).

PM2.5 peak43 µg/m³
Days over the guideline8 days
PM1063 µg/m³
Optical depth1.06
1213141516171819202122
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 · 159Every 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 Mexico ›

Frequently asked questions

How long did the Ajuchitlán del Progreso fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 8 May 2024 to 25 May 2024 (18 days). The perimeter dates it from 14 May 2024 to 19 May 2024.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 3,396 hectares (34.0 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Ajuchitlán del Progreso (3,414 ha, 1.7 %).
What was the weather like?
During the fire the temperature reached 36.6 °C, humidity dropped to 17 % and gusts hit 37 km/h. The fire danger index (FWI) reached 40, class Very 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 · 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

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
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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 911.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates adjusted with the VIIRS detections inside the perimeter, which said 14 May 2024 to 19 May 2024. 159 Suomi-NPP VIIRS detections on those dates.
  • Compared with CONAFOR: 4,778 official ha against 3,396 ha of perimeter; similar, but with reservations.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2025, 100 m cells), summed inside the perimeter: an estimate of what was there, not a damage count.

How we build fire pages: methodology ›

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.