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GT · Guatemala · –

Río Hondo fire, April 2020 Río Hondo

Out · last detection 24 Apr 2020, 06:58 UTC

The fire started on 14 April 2020 in Río Hondo, Guatemala, and satellites saw it burning for 11 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,640 hectares from heat detections, spread across a single municipality.

It is the 7th largest in Zacapa since 2016 (of 11 with a page). Number 20 in Guatemala in 2020, of 40.

The power measured by the satellite is low (23.8 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
1,640ha
GWIS perimeter (Copernicus)
Duration
11days
14 Apr 2020 – 24 Apr 2020
Municipalities hit
1
municipalities
Started on
14 Apr
2020
Heat detections
61
in a single hotspot: 24 MW
Danger at start
22
High · FWI index
Average daily power
41MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 14 Apr24 Apr
24 Apr 2020

How it evolved, day by day

14 Apr 2020 · 3 MW · 1 17 Apr 2020 · 128 MW · 20 18 Apr 2020 · 45 MW · 11 19 Apr 2020 · 69 MW · 6 20 Apr 2020 · 62 MW · 5 21 Apr 2020 · 9 MW · 3 22 Apr 2020 · 42 MW · 12 23 Apr 2020 · 5 MW · 1 24 Apr 2020 · 8 MW · 2
17 Apr 20 Apr 22 Apr 24 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

36°high
37km/h · peak gust
24%lowest humidity

It had gone 21 days without rain (1 mm or more) when it started. Rain came after the fire: 1.1 mm on 28 Apr.

This area had burned before

7% of the perimeter overlaps earlier fires recorded since 2016: 120 ha in 2019.

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. Río Hondo where it started
    1,650 ha reached on 14 Apr
    3.6 %

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 area1.4 ha
Residents≈ 70

Inside the perimeter there were about 1.4 hectares of built-up land and about 70 residents (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)

Day High Min. humidity Peak gust Rain Danger (FWI)
14 Apr 33.0 °C 38 % 28 km/h 0.0 mm High 22
15 Apr 32.0 °C 45 % 30 km/h 0.0 mm Moderate 18
16 Apr 31.4 °C 38 % 31 km/h 0.0 mm Moderate 20
17 Apr 30.7 °C 42 % 33 km/h 0.0 mm Moderate 20
18 Apr 31.8 °C 40 % 37 km/h 0.0 mm Moderate 21
19 Apr 33.4 °C 35 % 36 km/h 0.0 mm High 23
20 Apr 35.3 °C 31 % 28 km/h 0.0 mm High 25
21 Apr 32.8 °C 37 % 29 km/h 0.0 mm High 26
22 Apr 32.9 °C 37 % 35 km/h 0.0 mm High 26
23 Apr 36.4 °C 24 % 32 km/h 0.0 mm High 27
24 Apr 35.6 °C 27 % 30 km/h 0.0 mm High 27
25 Apr after 34.1 °C 28 % 30 km/h 0.0 mm High 28
26 Apr after 31.9 °C 48 % 33 km/h 0.3 mm High 25
27 Apr after 29.9 °C 39 % 32 km/h 0.8 mm Moderate 15
28 Apr after 28.6 °C 44 % 32 km/h 1.1 mm Moderate 20

Its twins: fires that started in the same weather

It started with an FWI of 21.8, a minimum humidity of 38% and 21 days without rain. Fires in the area that started in weather like this since 2016: 37.

FWI at the start 21.8
Minimum humidity 38 %
Days without rain 21
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Cobán fire, May 2024
1,354 ha 9 days FWI 22.3 Min. humidity 38 % 121 km away, in 2024

First rain (1 mm or more) after it ended: 9.3 mm on 19 May.

What happened to them

9 days
median duration
1,263 ha
median area
100 %
went past 1,000 ha
2.7 mm
rain at the end (median; 31 of 37 had it)

It burned an area similar to its twins (1,640 ha against a median of 1,263 ha) and lasted 11 days, against 9 days.

In 6 of 37, 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 2.7 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

1.1 mmfirst rain
28 Apr4 days after it ended
37km/h · max. gust

It was considered over on 24 Apr, and on 28 Apr 1.1 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 31 of 37, with a median of 2.7 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 Apr 2020
After · 1 May 2020

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 · 61Every 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 Guatemala

Frequently asked questions

How long did the Río Hondo fire last?
According to the heat detections seen by satellite inside the perimeter, it burned from 14 April 2020 to 24 April 2020 (11 days). The perimeter dates it from 17 April 2020 to 24 April 2020.
How much area did it burn?
The perimeter GWIS (Copernicus) rebuilt from heat detections is 1,640 hectares (16.4 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Río Hondo (1,650 ha, 3.6 %).
What was the weather like?
During the fire the temperature reached 36.4 °C, humidity dropped to 24 % and gusts hit 37 km/h. The fire danger index (FWI) reached 27, class High.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Guatemala (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: 37. Their median duration was 9 days and their median area 1,263 ha; 100 % went past 1,000 ha. In 6 of 37, 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 2.7 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: 122 · 123 · 1566 · Emergency number and official warnings

Satellite cross-check

History of this page · 1 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.
  1. Start date: 17 April 2020 → 14 April 2020.

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 122 · 123 · 1566.

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 17 April 2020 to 24 April 2020. 61 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 3.0 Intergovernmental Organisations (CC BY 3.0 IGO)). 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.