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Salamá fire, May 2024 Salamá, Guayape

Out · last detection 20 May 2024, 18:26 UTC

The fire started on 13 May 2024 in Salamá, Honduras, and satellites saw it burning for 9 days. Copernicus’s global GWIS system rebuilt a burnt perimeter of 1,950 hectares from heat detections, spread across 2 municipalities.

It is the 61th largest in Olancho since 2016 (of 227 with a page). Number 24 in Honduras in 2024, of 94.

The power measured by the satellite is low (28.3 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
1,950ha
GWIS perimeter (Copernicus)
Duration
9days
13 May 2024 – 21 May 2024
Municipalities hit
2
municipalities
Started on
13 May
2024
Heat detections
74
in a single hotspot: 28 MW
Danger at start
33
High · FWI index
Energy released
398MW
sum of detected power

Where it burned

20 May 2024
HOTSPOTS BY DAY 13 May21 May

How it evolved, day by day

1314151617181920

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

The weather it burned in

34°high
44km/h · peak gust
26%lowest humidity

It had gone 11 days without rain (1 mm or more) when it started. Rain came after the fire: 1.4 mm on 23 May.

This area had burned before

83% of the perimeter overlaps earlier fires recorded since 2016: 767 ha in 2018, 1,699 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 1,619 ha that had burned before.

What happened to each town

  1. Salamá where it started
    1,744 ha reached on 6 May
    5.2 %
  2. 216 ha reached on 8 May
    0.5 %

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.

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 33.8 °C 28 % 34 km/h 0.0 mm High 33
7 May 33.6 °C 30 % 37 km/h 0.0 mm High 34
8 May 32.4 °C 35 % 35 km/h 0.0 mm High 33
9 May 31.2 °C 34 % 40 km/h 0.2 mm High 33
10 May 33.6 °C 30 % 37 km/h 0.1 mm High 33
11 May 31.6 °C 36 % 36 km/h 0.1 mm High 32
12 May 32.8 °C 31 % 41 km/h 0.0 mm High 34
13 May 32.5 °C 35 % 42 km/h 0.6 mm High 30
14 May 32.5 °C 28 % 44 km/h 0.0 mm High 34
15 May 32.8 °C 33 % 41 km/h 0.0 mm High 34
16 May 32.2 °C 36 % 37 km/h 0.3 mm High 33
17 May 32.8 °C 39 % 38 km/h 1.1 mm High 23
18 May 34.2 °C 26 % 40 km/h 0.4 mm High 37
19 May 32.7 °C 31 % 44 km/h 0.0 mm High 36
20 May 33.1 °C 26 % 35 km/h 0.0 mm High 34
21 May 33.7 °C 30 % 34 km/h 1.1 mm High 25
22 May after 33.2 °C 32 % 25 km/h 0.0 mm High 28
23 May after 31.4 °C 41 % 30 km/h 1.4 mm Moderate 18

Before and after, from space

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

Before · 6 May 2024
After · 28 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 21 May 2024 the air beside the fire reached 56 µg/m³ of PM2.5. That day averaged 37: 2.4 times the WHO daily guideline (15).

PM2.5 peak56 µg/m³
Days over the guideline13 days
PM1083 µg/m³
Optical depth1.38
1112131415161718192021222324
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 · 74Every 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 Salamá fire last?
GWIS (Copernicus) dates it between 13 May 2024 and 21 May 2024: 9 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 1,950 hectares (19.5 km²). It is an estimate: official national figures may differ.
Which municipalities burned?
The fire entered 2 municipalities: Salamá (1,744 ha, 5.2 %); Guayape (216 ha, 0.5 %).
What was the weather like?
During the fire the temperature reached 34.2 °C, humidity dropped to 26 % and gusts hit 44 km/h. The fire danger index (FWI) reached 37, class High.
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.

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.

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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.

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.