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Compostela fire, May 2022 Compostela, San Pedro Lagunillas

Out · last detection 3 Jun 2022, 20:52 UTC

The fire started on 27 May 2022 in Compostela, Mexico, and satellites saw it burning for 8 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,941 hectares from heat detections, spread across 2 municipalities.

It is the 125th largest in Nayarit since 2016 (of 179 with a page). Number 161 in Mexico in 2022, of 235.

Burnt area
1,941ha
GWIS perimeter (Copernicus)
Duration
8days
27 May 2022 – 3 Jun 2022
Municipalities hit
2
municipalities
Started on
27 May
2022
Heat detections
106
in a single hotspot: 35 MW
Danger at start
39
Very high · FWI index
Energy released
578MW
sum of detected power

Where it burned

3 Jun 2022
HOTSPOTS BY DAY 27 May3 Jun

How it evolved, day by day

2728293031123

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

The weather it burned in

31°high
48km/h · peak gust
28%lowest humidity

It had gone 14 days without rain (1 mm or more) when it started. Rain came after the fire: 14.1 mm on 10 Jun.

This area had burned before

74% of the perimeter overlaps earlier fires recorded since 2016: 1,437 ha in 2017.

What happened to each town

  1. Compostela where it started
    1,858 ha reached on 27 May
    1.0 %
  2. San Pedro Lagunillas
    96 ha reached on 3 Jun
    0.2 %

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 27 May 2022 and burned 1,398 ha (the satellite measured 1,941 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)
27 May 31.2 °C 28 % 48 km/h 0.3 mm Very high 39
28 May 30.3 °C 33 % 43 km/h 0.1 mm High 36
29 May 29.0 °C 42 % 44 km/h 0.5 mm High 31
30 May 30.1 °C 35 % 47 km/h 0.0 mm High 32
31 May 29.8 °C 33 % 43 km/h 0.0 mm High 32
1 Jun 27.7 °C 40 % 41 km/h 0.0 mm High 30
2 Jun 28.2 °C 44 % 44 km/h 0.0 mm High 29
3 Jun 26.8 °C 51 % 41 km/h 0.0 mm High 25
4 Jun after 28.6 °C 47 % 46 km/h 0.0 mm High 27
5 Jun after 27.9 °C 50 % 40 km/h 0.0 mm High 26
6 Jun after 29.9 °C 39 % 41 km/h 0.0 mm High 27
7 Jun after 27.7 °C 47 % 39 km/h 0.0 mm High 26
8 Jun after 28.2 °C 48 % 43 km/h 0.3 mm High 27
9 Jun after 27.8 °C 52 % 44 km/h 0.6 mm High 22
10 Jun after 28.8 °C 51 % 35 km/h 14.1 mm Very low 4

Before and after, from space

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

Before · 20 May 2022
After · 10 Jun 2022

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 · 106Every 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 Compostela fire last?
GWIS (Copernicus) dates it between 27 May 2022 and 3 June 2022: 8 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 1,941 hectares (19.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Compostela (1,858 ha, 1.0 %); San Pedro Lagunillas (96 ha, 0.2 %).
What was the weather like?
During the fire the temperature reached 31.2 °C, humidity dropped to 28 % and gusts hit 48 km/h. The fire danger index (FWI) reached 39, 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.

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.