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Ajuchitlán del Progreso fire, 9 May 2024 Ajuchitlán del Progreso

Out · last detection 14 May 2024, 20:21 UTC

The fire started on 9 May 2024 in Ajuchitlán del Progreso, Mexico, and satellites saw it burning for 6 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 2,078 hectares from heat detections, spread across a single municipality.

It is the 391th largest in Guerrero since 2016 (of 612 with a page). Number 178 in Mexico in 2024, of 289.

Compare with…
Burnt area
2,078ha
GWIS perimeter (Copernicus)
Duration
6days
9 May 2024 – 14 May 2024
Municipalities hit
1
municipalities
Started on
9 May
2024
Heat detections
75
in a single hotspot: 51 MW
Danger at start
41
Very high · FWI index
Average daily power
64MW
detected power per day, on average

Where it burned

14 May 2024
HOTSPOTS BY DAY 9 May14 May

How it evolved, day by day

9 May 2024 · 96 MW · 7 10 May 2024 · 94 MW · 12 11 May 2024 · 81 MW · 18 12 May 2024 · 92 MW · 29 13 May 2024 · 10 MW · 6 14 May 2024 · 9 MW · 3
9 May 10 May 11 May 12 May 13 May 14 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

36°high
35km/h · peak gust
15%lowest humidity

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

This area had burned before

97% of the perimeter overlaps earlier fires recorded since 2016: 1,558 ha in 2017, 1,794 ha in 2019, 933 ha in 2020, 639 ha in 2021, 2,052 ha in 2023. Part of it burned more than once, so the yearly figures add up to more than the 2,013 ha that had burned before.

How big is it?

10 km
It burned the equivalent of 1.3% of the area of London (21 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
    2,090 ha
    1.0 %

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.

Official record

According to CONAFOR, this fire started on 8 May 2024 and burned 2,916 ha (the satellite measured 2,078 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)
6 May 34.1 °C 21 % 34 km/h 0.0 mm Very high 41
7 May 35.2 °C 16 % 32 km/h 0.0 mm Very high 42
8 May 35.7 °C 15 % 35 km/h 0.0 mm Very high 43
9 May 36.3 °C 17 % 34 km/h 0.0 mm Very high 43
10 May 35.2 °C 17 % 33 km/h 0.0 mm Very high 43
11 May 34.2 °C 21 % 35 km/h 0.0 mm Very high 44
12 May 34.1 °C 20 % 30 km/h 0.0 mm Very high 42
13 May 33.2 °C 21 % 29 km/h 0.0 mm Very high 43
14 May 33.2 °C 22 % 34 km/h 0.0 mm Very high 42
15 May after 33.4 °C 28 % 32 km/h 0.0 mm Very high 39
16 May after 33.0 °C 27 % 35 km/h 0.0 mm Very high 39
17 May after 33.3 °C 24 % 33 km/h 0.0 mm High 38
18 May after 33.5 °C 22 % 33 km/h 0.0 mm Very high 38
19 May after 34.9 °C 21 % 32 km/h 0.0 mm Very high 38
20 May after 33.3 °C 25 % 33 km/h 0.0 mm High 38
21 May after 34.1 °C 26 % 35 km/h 0.0 mm Very high 39
22 May after 32.9 °C 27 % 30 km/h 0.0 mm High 38
23 May after 34.5 °C 19 % 35 km/h 0.0 mm Very high 41
24 May after 35.4 °C 14 % 31 km/h 0.0 mm Very high 43
25 May after 36.1 °C 16 % 32 km/h 0.0 mm Very high 42
26 May after 34.8 °C 22 % 32 km/h 0.0 mm Very high 42

Before and after, from space

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

Before · 2 May 2024
After · 21 May 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 9 May 2024 the air beside the fire reached 67 µg/m³ of PM2.5. That day averaged 49: 3.3 times the WHO daily guideline (15).

PM2.5 peak67 µg/m³
Days over the guideline10 days
PM1097 µg/m³
Optical depth1.28
7891011121314151617
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 · 75Every 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?
GWIS (Copernicus) dates it between 9 May 2024 and 14 May 2024: 6 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 2,078 hectares (20.8 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Ajuchitlán del Progreso (2,090 ha, 1.0 %).
What was the weather like?
During the fire the temperature reached 36.3 °C, humidity dropped to 15 % and gusts hit 35 km/h. The fire danger index (FWI) reached 44, 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

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 911.

How we know this
  • Perimeter: GWIS (Copernicus), rebuilt from heat detections rather than mapped on imagery.
  • Dates from the perimeter: the VIIRS detections inside it did not change them. 75 Suomi-NPP VIIRS detections on those dates.
  • Compared with CONAFOR: 2,916 official ha against 2,078 ha of perimeter; similar, but with reservations.
  • Weather: Copernicus ERA5 reanalysis at the fire location, in cells of about 25 km.

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.