How long did the Huajicori fire last?

According to the heat detections seen by satellite inside the perimeter, it burned from 20 May 2017 to 5 June 2017 (17 days). The perimeter dates it from 24 May 2017 to 5 June 2017.

How much area did it burn?

The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,741 hectares (17.4 km²). It is an estimate: official national figures may differ.

Which municipalities burned?

The fire entered 3 municipalities: Rosario (1,235 ha, 0.5 %); Pueblo Nuevo (274 ha, 0.0 %); Huajicori (240 ha, 0.1 %).

What was the weather like?

During the fire the temperature reached 27.1 °C, humidity dropped to 30 % and gusts hit 42 km/h. The fire danger index (FWI) reached 29, 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 · 2017-05-20 → 2017-06-05

Huajicori fire, May 2017 Rosario, Pueblo Nuevo, Huajicori

Out · last detection 5 Jun 2017, 20:53 UTC

The fire started on 20 May 2017 in Huajicori, Mexico, and satellites saw it burning for 17 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,741 hectares from heat detections, spread across 3 municipalities.

It is the 148th largest in Nayarit since 2016 (of 181 with a page). Number 298 in Mexico in 2017, of 374.

The power measured by the satellite is low (27.9 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…

Suggestions: Huajicori · 2023 Rosario · 2024 Pueblo Nuevo · 2017 Pueblo Nuevo · 2021

Burnt area: 1,741ha; GWIS perimeter (Copernicus)
Duration: 17days; 20 May 2017 – 5 Jun 2017
Municipalities hit: 3; municipalities
Started on: 20 May; 2017
Heat detections: 112; in a single hotspot: 28 MW
Danger at start: 27; High · FWI index
Average daily power: 42MW; detected power per day, on average

HOTSPOTS BY DAY 20 May5 Jun

Play back 5 Jun 2017

How it evolved, day by day

20 May 24 May 27 May 29 May 30 May 31 May 3 Jun

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

The weather it burned in

27°high

42km/h · peak gust

30%lowest humidity

It had gone more than two months without rain (1 mm or more) when it started. Rain came after the fire: 2.2 mm on 14 Jun.

This area had burned before

No earlier perimeters overlap this fire since 2016, when the satellite record begins.

How big is it?

It burned the equivalent of 1.1% of the area of London (17 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

Rosario

1,235 ha reached on 20 May

0.5 %
Pueblo Nuevo

274 ha reached on 28 May

0.0 %
Huajicori where it started

240 ha reached on 24 May

0.1 %

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 2015

Built-up area0.18 ha

Residents< 20

Inside the perimeter there were about 0.18 hectares of built-up land and almost nobody lived there (GHSL 2015, 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)

Day	High	Min. humidity	Peak gust	Rain	Danger (FWI)
24 May	25.6 °C	38 %	38 km/h	0.0 mm	High 27
25 May	25.5 °C	40 %	39 km/h	0.0 mm	High 27
26 May	27.1 °C	30 %	37 km/h	0.0 mm	High 28
27 May	26.7 °C	36 %	36 km/h	0.0 mm	High 28
28 May	25.7 °C	39 %	40 km/h	0.0 mm	High 29
29 May	25.9 °C	37 %	38 km/h	0.0 mm	High 29
30 May	26.9 °C	35 %	41 km/h	0.0 mm	High 29
31 May	25.6 °C	49 %	39 km/h	0.0 mm	High 25
1 Jun	26.2 °C	44 %	42 km/h	0.0 mm	High 25
2 Jun	27.0 °C	42 %	42 km/h	0.0 mm	High 26
3 Jun	26.0 °C	38 %	38 km/h	0.0 mm	High 26
4 Jun	25.5 °C	44 %	40 km/h	0.0 mm	High 26
5 Jun	26.0 °C	47 %	38 km/h	0.0 mm	High 25
6 Jun after	26.3 °C	48 %	38 km/h	0.0 mm	High 25
7 Jun after	25.9 °C	47 %	36 km/h	0.0 mm	High 24
8 Jun after	26.7 °C	47 %	35 km/h	0.0 mm	High 24
9 Jun after	25.3 °C	52 %	35 km/h	0.0 mm	High 22
10 Jun after	24.9 °C	57 %	31 km/h	0.6 mm	Moderate 17
11 Jun after	25.0 °C	50 %	39 km/h	0.7 mm	Moderate 17
12 Jun after	24.5 °C	55 %	37 km/h	0.3 mm	Moderate 18
13 Jun after	23.6 °C	60 %	30 km/h	0.1 mm	Moderate 16
14 Jun after	25.5 °C	53 %	34 km/h	2.2 mm	Low 7

Before and after, from space

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

↔

Before · 13 May 2017

After · 12 Jun 2017

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 · 112Every 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 Huajicori fire last?: According to the heat detections seen by satellite inside the perimeter, it burned from 20 May 2017 to 5 June 2017 (17 days). The perimeter dates it from 24 May 2017 to 5 June 2017.
How much area did it burn?: The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,741 hectares (17.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?: The fire entered 3 municipalities: Rosario (1,235 ha, 0.5 %); Pueblo Nuevo (274 ha, 0.0 %); Huajicori (240 ha, 0.1 %).
What was the weather like?: During the fire the temperature reached 27.1 °C, humidity dropped to 30 % and gusts hit 42 km/h. The fire danger index (FWI) reached 29, 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 · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

25 October 2026 Start date: 24 May 2017 → 20 May 2017.

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.

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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 adjusted with the VIIRS detections inside the perimeter, which said 24 May 2017 to 5 June 2017. 112 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 2015, 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.

Where it burned