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MX · Mexico · –

Nuevo Urecho fire, May 2019 Nuevo Urecho

Out · last detection 22 May 2019, 20:27 UTC

The fire started on 14 May 2019 in Nuevo Urecho, Mexico, and satellites saw it burning for 12 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,637 hectares from heat detections, spread across a single municipality.

It is the 84th largest in Michoacan de Ocampo since 2016 (of 106 with a page). Number 327 in Mexico in 2019, of 363.

The power measured by the satellite is low (11.8 MW in the strongest hotspot), more typical of grass or stubble burning, or a slow surface fire, than of a large crown fire.

Burnt area
1,637ha
GWIS perimeter (Copernicus)
Duration
12days
14 May 2019 – 25 May 2019
Municipalities hit
1
municipalities
Started on
14 May
2019
Heat detections
71
in a single hotspot: 12 MW
Danger at start
39
Very high · FWI index
Average daily power
36MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 14 May25 May
22 May 2019

How it evolved, day by day

14 May 2019 · 2 MW · 2 15 May 2019 · 78 MW · 12 16 May 2019 · 2 MW · 1 17 May 2019 · 42 MW · 7 18 May 2019 · 68 MW · 17 19 May 2019 · 32 MW · 7 20 May 2019 · 20 MW · 7 21 May 2019 · 63 MW · 14 22 May 2019 · 15 MW · 4
15 May 18 May 20 May 22 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
41km/h · peak gust
21%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 2.0 mm on 29 May.

This area had burned before

88% of the perimeter overlaps earlier fires recorded since 2016: 1,427 ha in 2016, 67 ha in 2018.

How big is it?

10 km
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

  1. Nuevo Urecho where it started
    1,645 ha reached on 14 May
    4.9 %

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 2020
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2020, 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.

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

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)

Started with 60 days without rain: 25 % of the area in Mexico

Day High Min. humidity Peak gust Rain Danger (FWI)
14 May 34.7 °C 25 % 40 km/h 0.0 mm Very high 39
15 May 34.5 °C 22 % 38 km/h 0.0 mm Very high 41
16 May 34.6 °C 21 % 39 km/h 0.0 mm Very high 44
17 May 34.1 °C 25 % 41 km/h 0.0 mm Very high 41
18 May 34.7 °C 25 % 38 km/h 0.0 mm High 36
19 May 35.9 °C 22 % 31 km/h 0.0 mm High 38
20 May 35.3 °C 26 % 38 km/h 0.0 mm High 37
21 May 34.7 °C 29 % 34 km/h 0.0 mm Very high 38
22 May 34.8 °C 26 % 35 km/h 0.0 mm High 38
23 May 34.1 °C 32 % 37 km/h 0.0 mm High 34
24 May 34.9 °C 25 % 32 km/h 0.0 mm High 32
25 May 34.2 °C 33 % 32 km/h 0.0 mm High 33
26 May after 34.3 °C 35 % 24 km/h 0.0 mm High 31
27 May after 33.2 °C 40 % 25 km/h 0.2 mm High 29
28 May after 31.9 °C 40 % 26 km/h 0.1 mm High 26
29 May after 32.2 °C 42 % 27 km/h 2.0 mm Moderate 12

Its twins: fires that started in the same weather

It started with an FWI of 39.3, a minimum humidity of 25% and more than two months without rain. Fires in the area that started in weather like this since 2016: 23.

FWI at the start 39.3
Minimum humidity 25 %
Days without rain 60+
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Gabriel Zamora fire, April 2024
5,344 ha 18 days FWI 40.9 Min. humidity 27 % 21 km away, in 2024

First rain (1 mm or more) after it ended: none in the following ten days.

What happened to them

12 days
median duration
2,933 ha
median area
100 %
went past 1,000 ha
2.1 mm
rain at the end (median; 6 of 23 had it)

It stayed below its twins: 1,637 ha against a median of 2,933 ha. It lasted 12 days, against 12 days.

In 17 of 23, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.1 mm.

This is a bank of analogues: it shows what usually happens, not what will happen. With fewer than 15 twins we give no figures. How we calculate it

How it ended

2.0 mmfirst rain
29 May4 days after it ended
41km/h · max. gust

It was considered over on 25 May, and on 29 May 2.0 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 6 of 23, with a median of 2.1 mm.

Weather on this page: Open-Meteo.com (CC BY 4.0) · Copernicus Climate Change Service (ERA5)

How a twin is chosen

  • Same area: fires that have already ended, less than 250 km from this one, since 2016.
  • Same start: we compare the FWI on the first day, the minimum humidity that day and the run of days without rain before it. The slider sets how much they may differ.
  • Only pages with final weather data (ERA5 reanalysis) calculated in the same way as this fire’s; agricultural and grass burns and pages with data under review are left out.
  • Fires burning at the same time as this one (a week before or after) are left out: they share the same spell of weather and do not count as a precedent.
  • They are sorted by similarity, and the outlines of the first five are drawn.

How we calculate it

Before and after, from space

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

Before · 7 May 2019
After · 1 Jun 2019

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 · 71Every 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 Nuevo Urecho fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 14 May 2019 to 25 May 2019 (12 days). The perimeter dates it from 15 May 2019 to 22 May 2019.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,637 hectares (16.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Nuevo Urecho (1,645 ha, 4.9 %).
What was the weather like?
During the fire the temperature reached 35.9 °C, humidity dropped to 21 % and gusts hit 41 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.
How did the fires that started in similar weather in this area end?
Fires less than 250 km away that started since 2016 with a similar FWI, humidity and dry spell: 23. Their median duration was 12 days and their median area 2,933 ha; 100 % went past 1,000 ha. In 17 of 23, not even 1 mm fell in the ten days after the end: they went out without rain. In the rest, the first rainy day brought a median of 2.1 mm.

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 · 2 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Last day with fire: 22 May 2019 → 25 May 2019.
  2. Start date: 15 May 2019 → 14 May 2019.

RSS Changes to this page With cross-checks and a citable version

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 adjusted with the VIIRS detections inside the perimeter, which said 15 May 2019 to 22 May 2019. 71 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.
  • Built-up area and population come from the JRC Global Human Settlement Layer (epoch 2020, 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.