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HN · Honduras · –

Brus Laguna fire, 6 May 2024 Brus Laguna

Out · last detection 9 May 2024, 18:33 UTC

The fire started on 6 May 2024 in Brus Laguna, Honduras, and satellites saw it burning for 4 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,207 hectares from heat detections, spread across a single municipality.

It is the 98th largest in Gracias a Dios since 2016 (of 144 with a page). Number 57 in Honduras in 2024, of 94.

The power measured by the satellite is low (25.5 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
1,207ha
GWIS perimeter (Copernicus)
Duration
4days
6 May 2024 – 9 May 2024
Municipalities hit
1
municipalities
Started on
6 May
2024
Heat detections
26
in a single hotspot: 26 MW
Danger at start
12
Moderate · FWI index
Average daily power
85MW
detected power per day, on average

Where it burned

HOTSPOTS BY DAY 6 May9 May
9 May 2024

How it evolved, day by day

6 May 2024 · 108 MW · 13 7 May 2024 · 122 MW · 9 9 May 2024 · 24 MW · 4
6 May 7 May 9 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

35°high
40km/h · peak gust
55%lowest humidity

It had gone 0 days without rain (1 mm or more) when it started. Rain came after the fire: 1.1 mm on 16 May.

This area had burned before

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

How big is it?

10 km
It burned the equivalent of 0.8% of the area of London (12 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. Brus Laguna where it started
    1,213 ha reached on 6 May
    0.3 %

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 2025
Built-up area< 0.1 ha
Residents< 20

Inside the perimeter there was no noticeable built-up land and almost nobody lived there (GHSL 2025, 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. The GHSL 2025 epoch is a projection made from 2020 and earlier data.

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)
6 May 33.9 °C 56 % 33 km/h 0.3 mm Moderate 12
7 May 33.7 °C 66 % 34 km/h 1.4 mm Low 10
8 May 34.4 °C 60 % 36 km/h 1.2 mm Moderate 12
9 May 35.0 °C 55 % 40 km/h 0.2 mm Moderate 16
10 May after 35.0 °C 52 % 37 km/h 0.0 mm Moderate 20
11 May after 36.2 °C 46 % 37 km/h 0.0 mm High 22
12 May after 35.6 °C 49 % 39 km/h 0.0 mm High 23
13 May after 35.3 °C 51 % 41 km/h 0.3 mm High 26
14 May after 35.0 °C 51 % 39 km/h 0.0 mm High 25
15 May after 34.6 °C 56 % 37 km/h 0.0 mm High 26
16 May after 34.0 °C 58 % 39 km/h 1.1 mm Moderate 20

Its twins: fires that started in the same weather

It started with an FWI of 12.1, a minimum humidity of 56% and rain the day before. Fires in the area that started in weather like this since 2016: 27.

FWI at the start 12.1
Minimum humidity 56 %
Days without rain 0
this fire chosen twins rest of the area
Almost identicalSimilar

Outlines of the closest twins

Puerto Lempira fire, April 2016
1,831 ha 3 days FWI 12.4 Min. humidity 55 % 64 km away, in 2016

First rain (1 mm or more) after it ended: 1.1 mm on 20 Apr.

What happened to them

6 days
median duration
1,300 ha
median area
100 %
went past 1,000 ha
2.6 mm
rain at the end (median; 27 of 27 had it)

It burned an area similar to its twins (1,207 ha against a median of 1,300 ha) and lasted 4 days, against 6 days.

All of them had rain in the ten days after the end: the first rainy day brought a median of 2.6 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
16 May7 days after it ended
40km/h · max. gust

It was considered over on 9 May, and on 16 May 1.1 mm fell. We do not know whether the rain or the firefighters put it out. Twins with rain when they ended: 27 of 27, with a median of 2.6 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 · 29 Apr 2024
After · 16 May 2024

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

The smoke

CAMS · Copernicus

On 7 May 2024 the air beside the fire reached 47 µg/m³ of PM2.5. That day averaged 28: 1.8 times the WHO daily guideline (15).

PM2.5 peak47 µg/m³
Days over the guideline6 days
PM1068 µg/m³
Optical depth0.70
4 May6 May8 May10 May12 May
Good Fair Moderate Poor Very poor Extremely poor

Particles from the Copernicus CAMS model at the centre of the perimeter; these are not measurements in each town. The pale bar is the worst hour, the solid one the daily average.

Open-Meteo.com (CC BY 4.0) · Copernicus Atmosphere Monitoring Service (CAMS)

Detections table · 26Every 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 Honduras

Frequently asked questions

How long did the Brus Laguna fire last?
GWIS (Copernicus) dates it between 6 May 2024 and 9 May 2024: 4 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 1,207 hectares (12.1 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire only entered Brus Laguna (1,213 ha, 0.3 %).
What was the weather like?
During the fire the temperature reached 35.0 °C, humidity dropped to 55 % and gusts hit 40 km/h. The fire danger index (FWI) reached 16, class Moderate.
Where does this data come from?
From the GWIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Honduras (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: 27. Their median duration was 6 days and their median area 1,300 ha; 100 % went past 1,000 ha. All of them had rain in the ten days after the end: the first rainy day brought a median of 2.6 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 Changes in area, dates, name, official record or merged pages, compared every night since 24 October 2026.

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 from the perimeter: the VIIRS detections inside it did not change them. 26 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 2025, 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 International (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.