How long did the Coeneo fire last?

GWIS (Copernicus) dates it between 20 April 2021 and 29 April 2021: 10 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 1,617 hectares (16.2 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire entered 2 municipalities: Quiroga (1,440 ha, 6.7 %); Coeneo (185 ha, 0.5 %).

What was the weather like?

During the fire the temperature reached 27.8 °C, humidity dropped to 13 % and gusts hit 42 km/h. The fire danger index (FWI) reached 37, 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.

MX · Mexico · 2021-04-20 → 2021-04-29

Coeneo fire, April 2021 Quiroga, Coeneo

Out · last detection 29 Apr 2021, 08:00 UTC

The fire started on 20 April 2021 in Coeneo, Mexico, and satellites saw it burning for 10 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,617 hectares from heat detections, spread across 2 municipalities.

It is the 93th largest in Michoacan de Ocampo since 2016 (of 111 with a page). Number 272 in Mexico in 2021, of 295.

Compare with…

Suggestions: Quiroga · 2024 Zacapu · 2025 Lagunillas · 2021 Pátzcuaro · 2024

Burnt area: 1,617ha; GWIS perimeter (Copernicus)
Duration: 10days; 20 Apr 2021 – 29 Apr 2021
Municipalities hit: 2; municipalities
Started on: 20 Apr; 2021
Heat detections: 83; in a single hotspot: 60 MW
Danger at start: 33; High · FWI index
Average daily power: 108MW; detected power per day, on average

HOTSPOTS BY DAY 20 Apr29 Apr

Play back 29 Apr 2021

How it evolved, day by day

20 Apr 21 Apr 22 Apr 25 Apr 27 Apr 29 Apr

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

The weather it burned in

28°high

42km/h · peak gust

13%lowest humidity

It had gone 3 days without rain (1 mm or more) when it started. Rain came after the fire: 13.5 mm on 9 May.

This area had burned before

1% of the perimeter overlaps earlier fires recorded since 2016: 16 ha in 2020.

How big is it?

It burned the equivalent of 1% of the area of London (16 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

Quiroga

1,440 ha

6.7 %
Coeneo where it started

185 ha

0.5 %

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.

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)
20 Apr	26.1 °C	14 %	38 km/h	0.0 mm	High 33
21 Apr	26.6 °C	13 %	38 km/h	0.0 mm	High 34
22 Apr	25.8 °C	16 %	35 km/h	0.0 mm	High 34
23 Apr	25.9 °C	17 %	42 km/h	0.0 mm	High 37
24 Apr	26.5 °C	18 %	27 km/h	0.0 mm	High 32
25 Apr	26.9 °C	19 %	30 km/h	0.1 mm	High 36
26 Apr	26.8 °C	24 %	35 km/h	0.6 mm	High 30
27 Apr	27.8 °C	22 %	38 km/h	0.3 mm	High 31
28 Apr	27.4 °C	25 %	39 km/h	0.2 mm	High 32
29 Apr	27.3 °C	25 %	41 km/h	0.3 mm	High 35
30 Apr after	25.6 °C	23 %	44 km/h	0.3 mm	High 34
1 May after	24.7 °C	25 %	46 km/h	0.2 mm	High 36
2 May after	25.5 °C	19 %	39 km/h	0.2 mm	High 33
3 May after	25.0 °C	18 %	41 km/h	0.0 mm	High 36
4 May after	25.7 °C	18 %	35 km/h	0.0 mm	High 34
5 May after	28.2 °C	17 %	33 km/h	0.0 mm	High 38
6 May after	25.2 °C	26 %	37 km/h	0.0 mm	High 36
7 May after	24.9 °C	26 %	35 km/h	0.6 mm	High 29
8 May after	23.2 °C	38 %	23 km/h	0.5 mm	High 26
9 May after	22.0 °C	47 %	28 km/h	13.5 mm	Very low 1

Before and after, from space

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

↔

Before · 13 Apr 2021

After · 6 May 2021

Before After

If the day is cloudy, change the date: each satellite passes once a day. In false colour the burnt ground looks brown or red.

Detections table · 83Every 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 time	Satellite	FRP (MW)	Lat	Lon

Other fires nearby

All fires in Mexico ›

Frequently asked questions

How long did the Coeneo fire last?: GWIS (Copernicus) dates it between 20 April 2021 and 29 April 2021: 10 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 1,617 hectares (16.2 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire entered 2 municipalities: Quiroga (1,440 ha, 6.7 %); Coeneo (185 ha, 0.5 %).
What was the weather like?: During the fire the temperature reached 27.8 °C, humidity dropped to 13 % and gusts hit 42 km/h. The fire danger index (FWI) reached 37, 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 · Emergency number and official warnings ›

CONAFOR · Comisión Nacional Forestal ↗
CENAPRED ↗

Satellite cross-check

NASA FIRMS ↗
GWIS · Copernicus ↗

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

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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.

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What really happened?

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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 from the perimeter: the VIIRS detections inside it did not change them. 83 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.

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.

Where it burned