Gacko fire, 5 April 2024 Gacko
The fire started on 5 April 2024 in Gacko, Bosnia & Herzegovina, and satellites saw it burning for 1 day. Copernicus mapped a burnt perimeter of 104 hectares from satellite imagery, spread across a single municipality.
It is the 381th largest in Republika Srpska since 2016 (of 391 with a page). Number 86 in Bosnia & Herzegovina in 2024, of 87.
The power measured by the satellite is low (5.6 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
- 104ha
- Copernicus perimeter
- Duration
- 1day
- 5 Apr 2024 – 5 Apr 2024
- Municipalities hit
- 1
- municipalities
- Started on
- 5 Apr
- 2024
- Heat detections
- 2
- in a single hotspot: 6 MW
- Danger at start
- 2
- Very low · FWI index
- Energy released
- 8MW
- sum of detected power
Where it burned
How it evolved, day by day
Fire radiative power detected each day, in megawatts, and number of hotspots. The magenta bar marks the peak day.
The weather it burned in
It had gone 2 days without rain (1 mm or more) when it started.
This area had burned before
47% of the perimeter overlaps earlier fires recorded since 2016: 49 ha in 2016, 5 ha in 2019, 6 ha in 2020. Part of it burned more than once, so the yearly figures add up to more than the 49 ha that had burned before.
What happened to each town
-
Gacko where it started104 ha reached on 5 Apr0.1 %
Burnt area inside each municipality, from crossing the official 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.
What burned
- Other natural land99 %
- Scrub and transitional woodland1.0 %
Land cover inside the perimeter according to Corine Land Cover, as reported by Copernicus.
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) |
|---|---|---|---|---|---|
| 5 Apr | 16.5 °C | 40 % | 26 km/h | 0.0 mm | Very low 2 |
| 6 Apr after | 19.2 °C | 39 % | 26 km/h | 0.0 mm | Very low 3 |
| 7 Apr after | 20.9 °C | 34 % | 40 km/h | 0.0 mm | Low 6 |
| 8 Apr after | 21.5 °C | 37 % | 26 km/h | 0.0 mm | Low 6 |
| 9 Apr after | 20.7 °C | 28 % | 31 km/h | 0.0 mm | Low 8 |
| 10 Apr after | 20.4 °C | 31 % | 31 km/h | 0.0 mm | Low 8 |
| 11 Apr after | 19.1 °C | 43 % | 46 km/h | 0.0 mm | Low 10 |
| 12 Apr after | 18.3 °C | 44 % | 45 km/h | 0.0 mm | Low 9 |
| 13 Apr after | 19.7 °C | 36 % | 30 km/h | 0.0 mm | Low 8 |
| 14 Apr after | 22.5 °C | 30 % | 23 km/h | 0.0 mm | Low 10 |
| 15 Apr after | 19.3 °C | 39 % | 57 km/h | 0.0 mm | Moderate 13 |
Before and after, from space
Drag the line to compare the same ground before the fire and after it.
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 · CopernicusOn 8 April 2024 the air beside the fire reached 8 µg/m³ of PM2.5, but no daily average passed the WHO guideline (15).
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 · 2Every satellite heat detection, one by one, with time, satellite, power and coordinates.
| Date and time | Satellite | FRP (MW) | Lat | Lon |
|---|
Other fires nearby
- 3,001 haKalinovik18 March 2020 · 6 days · 6 km away
- 3,843 haKalinovikJanuary 2024 · 5 days · 13 km away
- 4,094 haNevesinje16 August 2026 · 1 day · 18 km away
- 4,021 haBilećaAugust 2026 · 12 days · 26 km away
- 3,663 haBileća11 August 2025 · 6 days · 38 km away
- 4,594 haBileća15 March 2022 · 1 day · 39 km away
Frequently asked questions
- How long did the Gacko fire last?
- Copernicus dates it between 5 April 2024 and 5 April 2024: 1 day between the first and last image with fire.
- How much area did it burn?
- The perimeter Copernicus measured from satellite imagery is 104 hectares (1.0 km²). Official national figures may differ.
- Which municipalities burned?
- The fire only entered Gacko (104 ha, 0.1 %).
- What was the weather like?
- During the fire the temperature reached 16.5 °C, humidity dropped to 40 % and gusts hit 26 km/h. The fire danger index (FWI) reached 2, class Very low.
- Where does this data come from?
- From the EFFIS (Copernicus) burnt perimeter, NASA FIRMS VIIRS hotspots and the administrative boundaries of Bosnia & Herzegovina (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: 123 · 112
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.
Report an error
Where this data comes from
The perimeter and land cover come from the Copernicus European Forest Fire Information System (EFFIS), measured on MODIS and Sentinel-2 imagery and published under CC BY 4.0. 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 ADM3 (Public Domain). The area per municipality is computed by WorldFires by crossing the perimeter with those boundaries, so it may differ slightly from each country’s official figure.